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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>Weather Prediction Center (WPC) Home Page</title> <meta name="DC.title" content="Weather Prediction Center (WPC) Home Page"> <meta name="DC.description" content="Weather Prediction Center's (WPC) Home Page"> <meta name="DC.subject" content="Weather Prediction Center's (WPC) Home Page"> <meta name="DC.creator" content="NOAA's National Weather Service"> <meta name="DC.date.created" scheme="ISO8601" content="2002-01-01"> <meta name="DC.date.reviewed" scheme="ISO8601" content="2005-12-12"> <meta name="DC.language" scheme="DCTERMS.RFC1766" content="EN-US"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">  <meta content="NCEP Web Team" name="GENERATOR">  <link href="nwscwi/main.css" type="text/css" rel="STYLESHEET"> <link rel="icon" href="/favicon.ico"> <link rel="alternate" type="application/rss+xml" title="WPC Mesoscale Precipitation Discussions" 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Opportunities</a></li> </ul> </div> </li> <li> <div class="center-section-link">  <a href="https://www.weather.gov/search">Search</a> </div> <div class="dropsearch"> <div class="site-search"> <form method="get" action="https://search.usa.gov/search" style="margin-bottom: 0; margin-top: 0;"> <input type="hidden" name="v:project" value="firstgov" /> <label for="query">Search For</label> <input type="text" name="query" id="query" size="12" /> <input type="submit" value="Go" /> <p> <input type="radio" name="affiliate" checked="checked" value="nws.noaa.gov" id="nws" /> <label for="nws" class="search-scope">NWS</label> <input type="radio" name="affiliate" value="noaa.gov" id="noaa" /> <label for="noaa" class="search-scope">All NOAA</label> </p> </form> </div> </div> </li> </ul> </div>    <div id="hazards" class="haz-content"> <a name="contents"></a> <div class="haz-border"> <div class="haz-wrn"> <a href='http://www.nws.noaa.gov/com/weatherreadynation/' title='Weather Ready Nation'><img class='haz-wrn-logo' src='/para/css/images/WRN_emblem_small.png' alt='Weather Ready Nation' /></a> </div> <div class="haz-one"> <table class="haz-one-table" summary="table that displays the WPC Hazards (Day 1, Day 2, and Day 3) for Excessive Rainfall, Heavy Snow, and Freezing Rain"> <thead> <tr> <th id='hz-hazards'>Hazard</th> <th id='hz-dayone'>Mar 01</th><th id='hz-daytwo'>Mar 02</th><th id='hz-daythree'>Mar 03</th> </tr> </thead> <tbody> <tr class="odd"> <td headers='hz-hazards'>Excessive Rainfall</td> <td headers='hz-dayone' title='There are No Risk Areas of Excessive Rainfall on Day 1' class='threats'><a href='/qpf/ero.php?opt=curr&day=1' target='_blank'>No Area</a></td><td headers='hz-daytwo' title='There are No Risk Areas of Excessive Rainfall on Day 2' class='threats'><a href='/qpf/ero.php?opt=curr&day=2' target='_blank'>No Area</a></td><td headers='hz-daythree' title='There are No Risk Areas of Excessive Rainfall on Day 3' class='threats'><a href='/qpf/ero.php?opt=curr&day=3' target='_blank'>No Area</a></td> </tr> <tr><td headers='hz-hazards'>Heavy Snow (≥ 4”)</td><td headers='hz-dayone' title='There is a High Risk of Snow Accumulations ≥ 4” on Day 1' class='high'><a href='/pwpf/wwd_accum_probs.php?fpd=24&ptype=snow&amt=1&day=1&ftype=probabilities' target='_blank'>High</a></td><td headers='hz-daytwo' title='There is a High Risk of Snow Accumulations ≥ 4” on Day 2' class='high'><a href='/pwpf/wwd_accum_probs.php?fpd=24&ptype=snow&amt=1&day=2&ftype=probabilities' target='_blank'>High</a></td><td headers='hz-daythree' title='There is a High Risk of Snow Accumulations ≥ 4” on Day 3' class='high'><a href='/pwpf/wwd_accum_probs.php?fpd=24&ptype=snow&amt=1&day=3&ftype=probabilities' target='_blank'>High</a></td></tr><tr class='odd'> <td headers='hz-hazards'>Ice (≥ 0.25”)</td><td headers='hz-dayone' title='There are No Risk Areas of Ice Accumulations ≥ 0.25” on Day 1' class='threats'><a href='/pwpf/wwd_accum_probs.php?fpd=24&ptype=icez&amt=1&day=1&ftype=probabilities' target='_blank'>No Area</a></td><td headers='hz-daytwo' title='There are No Risk Areas of Ice Accumulations ≥ 0.25” on Day 2' class='threats'><a href='/pwpf/wwd_accum_probs.php?fpd=24&ptype=icez&amt=1&day=2&ftype=probabilities' target='_blank'>No Area</a></td><td headers='hz-daythree' title='There are No Risk Areas of Ice Accumulations ≥ 0.25” on Day 3' class='threats'><a href='/pwpf/wwd_accum_probs.php?fpd=24&ptype=icez&amt=1&day=3&ftype=probabilities' target='_blank'>No Area</a></td></tr> </tbody> </table> </div> <div class="haz-two"> <table class="haz-two-table" summary="table that displays WPC/CPC hazards for Days 4-7">  <tr class="odd">  <td class="threats" headers='hz-day47'> <div style="margin-left:2em;margin-right:2em;"> <a href="/threats/threats.php" style="background:#7FFF7F;">WPC's Medium Range Hazards Forecast</a> <div style="line-height:75%;"> <div> <a href="/wwd/wssi/wssi.php" style="background:#7FFF7F;">Winter Storm Severity Index</a> <div style="line-height:75%;"> <div> <a href="https://www.wpc.ncep.noaa.gov/heatrisk" style="background:#7FFF7F;">Experimental HeatRisk</a> </div> </td> </tr> </tbody> </table> </div> <div class="haz-question"> <div><a title="More About WPC's Hazards Table" target="_blank" href='/para/para_includes/WPC_Hazards_Table.pdf'><img class="question" src="../para/para_css/images/question.png" height="18"></img></a></div> </div> </div> </div>   <div class="product-body"> <div id='product' class='product-tabs-container'>  <ul id="toc" class="product-tabs"> <li><a href="#ovw" title="national overview"><span>Overview</span></a></li> <li><a href="#sfc" title="surface analysis"><span>Surface Analysis</span></a></li> <li><a href="#frt" title="fronts and pressures through day 7"><span>Fronts</span></a></li> <li><a href="#qpf" title="quantitative precipitation forecasts"><span>QPF</span></a></li> <li><a href="#ero" title="rainfall exceeding flash flood guidance"><span>Excessive Rain</span></a></li> <li><a href="#wwx" title="winter weather forecasts"><span>Winter Wx</span></a></li> <li><a href="#med" title="medium range forecasts (day 3-7)"><span>Day 3–7</span></a></li> <li><a href="#tls" title="forecaster toolbox"><span>Forecast Tools</span></a></li> </ul>  <div id='container' class='product-container'> <div class="product-content"> <div class="product-content-new" id="ovw">   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).keydown( function(e) { if (e.keyCode == 39) { $(".overviewo:focus").closest('li').next().find('a.overviewo').focus(); } if (e.keyCode == 37) { $(".overviewo:focus").closest('li').prev().find('a.overviewo').focus(); } } ); $(function() { $('#firsto').focus(); }); </script> <div id='content-ovw' class='display-content-max-h'> <div class='display-overview-h'> <div class='display-text'> <div class="display-title">National Forecast Chart</div> <div id='TABday1S-ovw' style='display: block' class='display-validtime'><br>Valid Sat Mar 1, 2025</div><div id='TABday2S-ovw' style='display: none' class='display-validtime'><br>Valid Sun Mar 2, 2025</div><div id='TABday3S-ovw' style='display: none' class='display-validtime'><br>Valid Mon Mar 3, 2025</div>    <div class="navbar" id="fordays"> <ul id="minitabs"> <li class="cforday"><a href="#" OnMouseOver="show_tab('ovw','TABday1','3')" class="overviewo" onfocus="show_tab('ovw','TABday1','3')" id="firsto" alt="Day1"><span id="TABday1T-ovw" class="active-forecast">Day 1</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('ovw','TABday2','3')" class="overviewo" onfocus="show_tab('ovw','TABday2','3')" alt="Day2"><span id="TABday2T-ovw" class="blank">Day 2</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('ovw','TABday3','3')" class="overviewo" onfocus="show_tab('ovw','TABday3','3')" alt="Day3"><span id="TABday3T-ovw" class="blank">Day 3</span></a></li> </ul> </div> </div>  <div id= "options-wrapper" class="options-wrapper"> <div id="options-tab-ovw" class="options-off"> <div class="options-container"> <div class="options-inner1"> <a onclick="javascript:displayoptions('ovw');" href="javascript:;"><img class="options-icon" alt="options" src="para/para_css/images/options.png" /></a> </div> <div id="opts-ovw" class="options-inner2" style="display: none"> Image Format: <div class="options-form"> <form> <input id="ovw-eng" type="radio" name="format" value="english" onclick="javascript:imgformat('eng');" checked ><label for="ovw-eng">English</label> <a id="TABday1F" href="/noaa/noaad1.pdf" style="display: inline">(PDF)</a> <a id="TABday2F" href="/noaa/noaad2.pdf" style="display: none">(PDF)</a> <a id="TABday3F" href="/noaa/noaad3.pdf" style="display: none">(PDF)</a> <br> <input id="ovw-esp" type="radio" name="format" value="spanish" onclick="javascript:imgformat('esp');"><label for="ovw-esp">Español</label> <a id="TABday1EF" href="/noaa/sp_noaad1.pdf" style="display: inline">(PDF)</a> <a id="TABday2EF" href="/noaa/sp_noaad2.pdf" style="display: none">(PDF)</a> <a id="TABday3EF" href="/noaa/sp_noaad3.pdf" style="display: none">(PDF)</a> <br> </form> </div> <div class='options-form2'><a href="/NationalForecastChart/map.php" target="_blank">Interactive Map</a></div> </div> </div> </div> </div>   <div> <div id="TABday1G-ovw" style="display:block;"> <a href="/NationalForecastChart/map.php"> <img class='display-img-ove' src='/NationalForecastChart/staticmaps/noaad1.png' id='ovwimg1' alt='Day 1 image not available'> </a> </div> <div id="TABday2G-ovw" style="display:none;"> <a href="/NationalForecastChart/map.php"> <img class='display-img-ove' src='/NationalForecastChart/staticmaps/noaad2.png' id='ovwimg2' alt='Day 2 image not available'> </a> </div> <div id="TABday3G-ovw" style="display:none;"> <a href="/NationalForecastChart/map.php"> <img class='display-img-ove' src='NationalForecastChart/staticmaps/noaad3.png' id='ovwimg3' alt='Day 3 image not available'> </a> </div> </div>  <div id='links-ovw' class='links-ove'>  <a href="/NationalForecastChart/map.php" target="_blank" class="linksmajor"> » Interactive National Forecast Chart</a><br> <a onclick="javascript:displaylinks('dlinks-ovw')" href="javascript:;"> + Additional Links</a> <div id="dlinks-ovw" style="display: none"> <ul class="linkslist"> <li>» <a href="/html/about_Gudes.shtml" alt="Product Description">Description of the National Forecast Chart</a></li> <li>» <a href="/noaa/noaa_archive.php?reset=yes" alt="Product Archives">Product Archives</a></li> <li>» Download hazards in <a href="/kml/kmlproducts.php#sigwx" alt="KML">KML</a> or <a href="https://ftp.wpc.ncep.noaa.gov/shapefiles/noaa_chart/" alt="shapefile">shapefile format</a> or <a href="/NationalForecastChart/mapdata/" alt="GeoJSON">GeoJSON format</a></li> </ul> </div> </div> </div> <div class='display-headlines'>  <div class='display-title-headline'> WPC Top Stories: </div>  <div class='news-list'> <a href='https://www.wpc.ncep.noaa.gov/Prob_Precip/' target='_blank'><div class='news-list-border'><img id='highlightimg' class='news-logo-img-yes' src='/para/images/ppp.png' alt='headline0' /><br>Explore WPC's experimental Probabilistic Precipitation Portal</div></a><a href='/para/para_images/ERO_Categories.png' target='_blank'><div class='news-list-border'><img id='highlightimg' class='news-logo-img-yes' src='/para/para_images/ERO_Categories.png' alt='headline1' /><br>Understanding WPC's Excessive Rainfall Risk Categories</div></a><a href='/wwd/wssi/wssi.php' target='_blank'><div class='news-list-border'><img id='highlightimg' class='news-logo-img-yes' src='/wwd/wssi/images/WSSI_Overall_CONUS.png' alt='headline2' /><br>View the Winter Storm Severity Index to see potential impacts from winter weather</div></a><a href='/kml/kmlproducts.php' target='_blank'><div class='news-list-border'><img id='highlightimg' class='news-logo-img-yes' src='/para/para_images/GIS_products.png' alt='headline3' /><br>Looking for data from WPC products in a GIS format?</div></a> </div> </div> </div> </div> <div class="product-content-new" id="sfc">   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).keydown( function(e) { if (e.keyCode == 39) { $(".overviews:focus").closest('li').next().find('a.overviews').focus(); } if (e.keyCode == 37) { $(".overviews:focus").closest('li').prev().find('a.overviews').focus(); } } ); $(function() { $('#firsts').focus(); }); </script> <div id='content-sfc' class='display-content-max'> <div class='display-text'> <div class="display-title">North American Surface Analysis <a href="html/sfc2.shtml" alt="Legacy Page" class="legacy-link">Legacy Page</a>:</div> <div id='TABday1S-sfc' style='display: none' class='display-validtime'>Analyzed at 21Z Fri Feb 28, 2025</div><div id='TABday2S-sfc' style='display: none' class='display-validtime'>Analyzed at 00Z Sat Mar 01, 2025</div><div id='TABday3S-sfc' style='display: none' class='display-validtime'>Analyzed at 03Z Sat Mar 01, 2025</div><div id='TABday4S-sfc' style='display: none' class='display-validtime'>Analyzed at 06Z Sat Mar 01, 2025</div><div id='TABday5S-sfc' style='display: none' class='display-validtime'>Analyzed at 09Z Sat Mar 01, 2025</div><div id='TABday6S-sfc' style='display: none' class='display-validtime'>Analyzed at 12Z Sat Mar 01, 2025</div><div id='TABday7S-sfc' style='display: none' class='display-validtime'>Analyzed at 15Z Sat Mar 01, 2025</div><div id='TABday8S-sfc' style='display: none' class='display-validtime'>Analyzed at 18Z Sat Mar 01, 2025</div><div id='TABday9S-sfc' style='display: block' class='display-validtime'>Analyzed at 21Z Sat Mar 01, 2025</div>    <div class="navbar" id="fordays"> <ul id="minitabs"> <li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday1','9')" class="overviews" onfocus="show_tab('sfc','TABday1','9')" alt="Day1"><span id="TABday1T-sfc" class="blank">-24 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday2','9')" class="overviews" onfocus="show_tab('sfc','TABday2','9')" alt="Day2"><span id="TABday2T-sfc" class="blank">-21 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday3','9')" class="overviews" onfocus="show_tab('sfc','TABday3','9')" alt="Day3"><span id="TABday3T-sfc" class="blank">-18 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday4','9')" class="overviews" onfocus="show_tab('sfc','TABday4','9')" alt="Day4"><span id="TABday4T-sfc" class="blank">-15 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday5','9')" class="overviews" onfocus="show_tab('sfc','TABday5','9')" alt="Day5"><span id="TABday5T-sfc" class="blank">-12 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday6','9')" class="overviews" onfocus="show_tab('sfc','TABday6','9')" alt="Day6"><span id="TABday6T-sfc" class="blank">-9 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday7','9')" class="overviews" onfocus="show_tab('sfc','TABday7','9')" alt="Day7"><span id="TABday7T-sfc" class="blank">-6 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday8','9')" class="overviews" onfocus="show_tab('sfc','TABday8','9')" alt="Day8"><span id="TABday8T-sfc" class="blank">-3 hr</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('sfc','TABday9','9')" class="overviews" onfocus="show_tab('sfc','TABday9','9')" id="firsts" alt="Day9"><span id="TABday9T-sfc" class="active-forecast">latest</span></a></li> </ul> </div> </div>  <div id= "options-wrapper" class="options-wrapper"> <div id="options-tab-sfc" class="options-off"> <div class="options-container"> <div class="options-inner1"> <a onclick="javascript:displayoptions('sfc');" href="javascript:;"><img class="options-icon" src="para/para_css/images/options.png" alt="options"/></a> </div> <div id="opts-sfc" class="options-inner2" style="display: none"> Image Format: <div class="options-form"> <form> <input id="sfc-std" type="radio" name="format" value="standard" onclick="javascript:imgformatsfc('namussfc');" checked ><label for="sfc-std">Standard</label> <br> <input id="sfc-sat" type="radio" name="format" value="satellite" onclick="javascript:imgformatsfc('ussatsfc');"><label for="sfc-sat">Satellite Composite</label> <br> <input id="sfc-rad" type="radio" name="format" value="radar" onclick="javascript:imgformatsfc('radsfcus_exp_new');"><label for="sfc-rad">Radar Composite</label> <br> <input id="sfc-baw" type="radio" name="format" value="blckwhite" onclick="javascript:imgformatsfc('bw');"><label for="sfc-baw">Black and White</label> <br> <input id="sfc-frt" type="radio" name="format" value="fronts" onclick="javascript:imgformatsfc('usfntsfc');"><label for="sfc-frt">Fronts Only</label> <br>  </form> </div> <div class='options-form2'><a href="/html/sfc-zoom.php" target="_blank">Interactive Map</a></div> </div> </div> </div> </div>  <script> function imgformatsfc(nam) { //get info from php variables var numprod = 9; var maphours = ["21","00","03","06","09","12","15","18","21"]; var oldimgsrc = ["\/archives\/sfc\/2025\/namussfc2025022821.gif","\/sfc\/namussfc00wbg.gif","\/sfc\/namussfc03wbg.gif","\/sfc\/namussfc06wbg.gif","\/sfc\/namussfc09wbg.gif","\/sfc\/namussfc12wbg.gif","\/sfc\/namussfc15wbg.gif","\/sfc\/namussfc18wbg.gif","\/sfc\/namussfc21wbg.gif"]; //info to grab from archives var ayear = "2025"; var afilename = "2025022821"; //get new sources for selected sfc image var ndirectory = 'https://www.wpc.ncep.noaa.gov/sfc'; var narcdirectory = 'https://www.wpc.ncep.noaa.gov/archives/sfc'; var newimgsrc = new Array(); for (i = 0; i < numprod; i++) { if (nam == 'namussfc') { // user selects 'standard' newimgsrc[i] = ndirectory + '/' + nam + maphours[i] + 'wbg.gif'; //if map is from -24hrs, need to grab it from archives if (i == 0) { newimgsrc[i] = narcdirectory + '/' + ayear + '/' + nam + afilename + '.gif'; } } else if (nam == 'bw') { //user selects 'black and white' newimgsrc[i] = ndirectory + '/' + 'print_us' + maphours[i] + nam + '.gif'; //if map is from -24hrs, need to grab it from archives if (i == 0) { newimgsrc[i] = narcdirectory + '/' + ayear + '/' + 'print_us' + afilename + '.gif'; } } else if (nam == 'usfntsfc') { //user selects 'fronts only' newimgsrc[i] = ndirectory + '/' + nam + maphours[i] + 'wbg.gif'; //if map is from -24hrs, need to grab it from archives if (i == 0) { newimgsrc[i] = narcdirectory + '/' + ayear + '/' + nam + afilename + '.gif'; } } else { newimgsrc[i] = ndirectory + '/' + nam + maphours[i] + '.gif'; //if map is from -24hrs, need to grab it from archives if (i == 0) { newimgsrc[i] = narcdirectory + '/' + ayear + '/' + nam + afilename + '.gif'; } } //change image source var idnum = i + 1; var sfcid = 'sfcimg' + idnum ; document.getElementById(sfcid).src = newimgsrc[i]; } // alert(newimgsrc[3]); } </script>  <div> <div id='TABday1G-sfc' style='display:none;'><img class='display-img-max' src='/archives/sfc/2025/namussfc2025022821.gif' id='sfcimg1' alt='Day 1 image not available'></div><div id='TABday2G-sfc' style='display:none;'><img class='display-img-max' src='/sfc/namussfc00wbg.gif' id='sfcimg2' alt='Day 2 image not available'></div><div id='TABday3G-sfc' style='display:none;'><img class='display-img-max' src='/sfc/namussfc03wbg.gif' id='sfcimg3' alt='Day 3 image not available'></div><div id='TABday4G-sfc' style='display:none;'><img class='display-img-max' src='/sfc/namussfc06wbg.gif' id='sfcimg4' alt='Day 4 image not available'></div><div id='TABday5G-sfc' style='display:none;'><img class='display-img-max' src='/sfc/namussfc09wbg.gif' id='sfcimg5' alt='Day 5 image not available'></div><div id='TABday6G-sfc' style='display:none;'><img class='display-img-max' src='/sfc/namussfc12wbg.gif' id='sfcimg6' alt='Day 6 image not available'></div><div id='TABday7G-sfc' style='display:none;'><img class='display-img-max' src='/sfc/namussfc15wbg.gif' id='sfcimg7' alt='Day 7 image not available'></div><div id='TABday8G-sfc' style='display:none;'><img class='display-img-max' src='/sfc/namussfc18wbg.gif' id='sfcimg8' alt='Day 8 image not available'></div><div id='TABday9G-sfc' style='display:block;'><img class='display-img-max' src='/sfc/namussfc21wbg.gif' id='sfcimg9' alt='Day 9 image not available'></div> </div>  <div id='links-sfc' class='links-max'> <a href="/html/sfc-zoom.php" target="_blank" class="linksmajor"> » Interactive Surface Map</a><br> <a href="https://ocean.weather.gov/unified_analysis.php" target="_blank"> » NWS Unified Surface Analysis</a><br> <a onclick="javascript:displaylinks('dlinks-sfc')" href="javascript:;"> + Additional Links</a> <div id="dlinks-sfc" style="display: none"> <ul class="linkslist"> <li>» <a href="/archives/web_pages/sfc/sfc_archive.php" alt="Product Archives">Product Archives</a></li> <li>» <a href="/sfc/UASfcManualVersion1.pdf" alt="Product Info">NWS Unified Surface Analysis Manual</a></li> <li>» <a href="/html/sfc2.shtml" alt="Other Products">Other Surface Analysis Products</a></li> </ul> </div> </div> </div> </div> <div class="product-content-new" id="frt">   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).keydown( function(e) { if (e.keyCode == 39) { $(".overviewf:focus").closest('li').next().find('a.overviewf').focus(); } if (e.keyCode == 37) { $(".overviewf:focus").closest('li').prev().find('a.overviewf').focus(); } } ); $(function() { $('#firstf').focus(); }); </script> <div id='content-frt' class='display-content-max'> <div class='display-text'> <div class="display-title">Surface Fronts and Sea-Level Pressures <a href="basicwx/basicwx_ndfd.php" alt="Legacy Page" class="legacy-link">Legacy Page</a>:</div> <div id='TABday1S-frt' style='display: block' class='display-validtime'>Analyzed 21Z Sat Mar 01, 2025</div><div id='TABday2S-frt' style='display: none' class='display-validtime'>Valid 00Z Sun Mar 02, 2025</div><div id='TABday3S-frt' style='display: none' class='display-validtime'>Valid 06Z Sun Mar 02, 2025</div><div id='TABday4S-frt' style='display: none' class='display-validtime'>Valid 12Z Sun Mar 02, 2025</div><div id='TABday5S-frt' style='display: none' class='display-validtime'>Valid 18Z Sun Mar 02, 2025</div><div id='TABday6S-frt' style='display: none' class='display-validtime'>Valid 00Z Mon Mar 03, 2025</div><div id='TABday7S-frt' style='display: none' class='display-validtime'>Valid 12Z Mon Mar 03, 2025</div><div id='TABday8S-frt' style='display: none' class='display-validtime'>Valid 00Z Tue Mar 04, 2025</div><div id='TABday9S-frt' style='display: none' class='display-validtime'>Valid 12Z Tue Mar 04, 2025</div><div id='TABday10S-frt' style='display: none' class='display-validtime'>Valid 12Z Wed Mar 05, 2025</div><div id='TABday11S-frt' style='display: none' class='display-validtime'>Valid 12Z Thu Mar 06, 2025</div><div id='TABday12S-frt' style='display: none' class='display-validtime'>Valid 12Z Fri Mar 07, 2025</div><div id='TABday13S-frt' style='display: none' class='display-validtime'>Valid 12Z Sat Mar 08, 2025</div>    <div class="navbar" id="fordays"> <ul id="minitabs"> <li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday1','13')" class="overviewf" onfocus="show_tab('frt','TABday1','13')" id="firstf" alt="Day1"><span id="TABday1T-frt" class="active-forecast">21ZSat</span></a></li><li class="cforday"><span class='nav-vline'> </span><a href="#" OnMouseOver="show_tab('frt','TABday2','13')" class="overviewf" onfocus="show_tab('frt','TABday2','13')" alt="Day2"><span id="TABday2T-frt" class="blank">00ZSun</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday3','13')" class="overviewf" onfocus="show_tab('frt','TABday3','13')" alt="Day3"><span id="TABday3T-frt" class="blank">06ZSun</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday4','13')" class="overviewf" onfocus="show_tab('frt','TABday4','13')" alt="Day4"><span id="TABday4T-frt" class="blank">12ZSun</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday5','13')" class="overviewf" onfocus="show_tab('frt','TABday5','13')" alt="Day5"><span id="TABday5T-frt" class="blank">18ZSun</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday6','13')" class="overviewf" onfocus="show_tab('frt','TABday6','13')" alt="Day6"><span id="TABday6T-frt" class="blank">00ZMon</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday7','13')" class="overviewf" onfocus="show_tab('frt','TABday7','13')" alt="Day7"><span id="TABday7T-frt" class="blank">12ZMon</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday8','13')" class="overviewf" onfocus="show_tab('frt','TABday8','13')" alt="Day8"><span id="TABday8T-frt" class="blank">00ZTue</span></a></li><li class="cforday"><span class='nav-vline'> </span><a href="#" OnMouseOver="show_tab('frt','TABday9','13')" class="overviewf" onfocus="show_tab('frt','TABday9','13')" alt="Day9"><span id="TABday9T-frt" class="blank">12ZTue</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday10','13')" class="overviewf" onfocus="show_tab('frt','TABday10','13')" alt="Day10"><span id="TABday10T-frt" class="blank">12ZWed</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday11','13')" class="overviewf" onfocus="show_tab('frt','TABday11','13')" alt="Day11"><span id="TABday11T-frt" class="blank">12ZThu</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday12','13')" class="overviewf" onfocus="show_tab('frt','TABday12','13')" alt="Day12"><span id="TABday12T-frt" class="blank">12ZFri</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('frt','TABday13','13')" class="overviewf" onfocus="show_tab('frt','TABday13','13')" alt="Day13"><span id="TABday13T-frt" class="blank">12ZSat</span></a></li> </ul> </div> </div>    <div> <div id='TABday1G-frt' style='display:block;'><img class='display-img-max' src='../sfc/usfntsfc21wbg.gif' id='frtimg1' alt='Day 1 image not available'></div><div id='TABday2G-frt' style='display:none;'><img class='display-img-max' src='../basicwx/92fndfd_init_2025030112.gif ' id='frtimg2' alt='Day 2 image not available'></div><div id='TABday3G-frt' style='display:none;'><img class='display-img-max' src='../basicwx/93fndfd_init_2025030112.gif ' id='frtimg3' alt='Day 3 image not available'></div><div id='TABday4G-frt' style='display:none;'><img class='display-img-max' src='../basicwx/94fndfd_init_2025030112.gif ' id='frtimg4' alt='Day 4 image not available'></div><div id='TABday5G-frt' style='display:none;'><img class='display-img-max' src='../basicwx/95fndfd_init_2025030112.gif ' id='frtimg5' alt='Day 5 image not available'></div><div id='TABday6G-frt' style='display:none;'><img class='display-img-max' src='../basicwx/96fndfd_init_2025030112.gif ' id='frtimg6' alt='Day 6 image not available'></div><div id='TABday7G-frt' style='display:none;'><img class='display-img-max' src='../basicwx/98fndfd_init_2025030112.gif ' id='frtimg7' alt='Day 7 image not available'></div><div id='TABday8G-frt' style='display:none;'><img class='display-img-max' src='../basicwx/99fndfd_init_2025030112.gif ' id='frtimg8' alt='Day 8 image not available'></div><div id='TABday9G-frt' style='display:none;'><img class='display-img-max' src='../medr/display/wpcwx+frontsf072.gif' id='frtimg9' alt='Day 9 image not available'></div><div id='TABday10G-frt' style='display:none;'><img class='display-img-max' src='../medr/display/wpcwx+frontsf096.gif' id='frtimg10' alt='Day 10 image not available'></div><div id='TABday11G-frt' style='display:none;'><img class='display-img-max' src='../medr/display/wpcwx+frontsf120.gif' id='frtimg11' alt='Day 11 image not available'></div><div id='TABday12G-frt' style='display:none;'><img class='display-img-max' src='../medr/display/wpcwx+frontsf144.gif' id='frtimg12' alt='Day 12 image not available'></div><div id='TABday13G-frt' style='display:none;'><img class='display-img-max' src='../medr/display/wpcwx+frontsf168.gif' id='frtimg13' alt='Day 13 image not available'></div> </div>  <div id='links-frt' class='links-max'> <a onclick="javascript:displaylinks('dlinks-frtsr-disco')" href="javascript:;"> + Short Range Forecast Discussion (Day ½-2½)</a><br> <div id="dlinks-frtsr-disco" style="display: none"> <div class="dlinks-disco"> Short Range Forecast Discussion <br>NWS Weather Prediction Center College Park MD <br>300 PM EST Sat Mar 01 2025 <br> <br>Valid 00Z Sun Mar 02 2025 - 00Z Tue Mar 04 2025 <br> <br>...Critical Fire Weather Risk through this evening over portions of the <br>Carolinas, and also the remainder of the weekend and early next week over <br>portions of the Southwest to Southern High Plains... <br> <br>...Temperatures drop well below average into early next week across much <br>of the Ohio Valley, Mid-Atlantic and Northeast... <br> <br>...Unsettled weather expected across the West on Sunday and Monday as a <br>new Pacific storm system advances inland across the Intermountain Region <br>and through the Rockies... <br> <br>A strong cold front will cross the Eastern Seaboard and the Gulf Coast <br>region this evening which will bring cold high pressure and a return to <br>below average temperatures through the remainder of the weekend and into <br>early next week. The cold northwest winds over the Great Lakes and <br>Northeast in behind the cold front will bring a threat for snow shower <br>activity and there may be locally a few inches of lake-effect snow <br>immediately downwind of the Great Lakes. <br> <br>The coldest temperatures relative to normal over the next couple of days <br>will be over the Ohio Valley, Mid-Atlantic and Northeast where high <br>temperatures will be as much as 15 to 25 degrees below normal before then <br>moderating by next Tuesday. However, as this cold front crosses through <br>the Southeast through this evening, there will be windy, dry conditions in <br>place and this will result in elevated to locally critical fire danger <br>concerns. As a result, there are Red Flag Warnings in effect with portions <br>of the Carolinas seeing the greatest fire danger threat. <br> <br>Dry conditions will generally be in place for the rest of the weekend <br>across the South, but there will be a weak storm system ejecting out <br>across the southern Plains late Sunday and Sunday night which will <br>facilitate a return of enough moisture and instability for a threat of <br>scattered showers and thunderstorms which may produce a few instances of <br>severe weather with isolated large hail an strong winds possible. However, <br>as this system initially comes through the Southwest and out into the <br>southern High Plains, there will be concerns for gusty winds, and this <br>coupled with the dry conditions will support elevated to critical fire <br>weather concerns. Areas of southern Arizona through southern New Mexico <br>and western Texas will see the greatest fire weather concerns through <br>Sunday and early Monday. <br> <br>Finally, a new Pacific storm system will be advancing inland into the <br>Intermountain Region on Sunday which will then cross the central and <br>southern Rockies Sunday night and early Monday. This will bring areas of <br>showers and a threat for locally heavy higher elevation snowfall. This <br>will include the Sierra Nevada, portions of the Great Basin, the Wasatch <br>of Utah, and also the higher terrain of western Colorado where 6 to 12+ <br>inches of new snowfall will be possible. However, for areas farther south <br>and east toward the southern High Plains, this next system will bring a <br>new surge of strong, gusty winds which coupled with dry air/low relative <br>humidities will support fairly widespread critical fire danger concerns <br>which will include central and southern New Mexico and parts of western <br>Texas through Monday. <br> <br>This storm system will intensify as it ejects out into the southern Plains <br>early next week and aside from the fire weather concerns, severe weather <br>will become an increasing threat with more widespread showers and <br>thunderstorms impacting areas farther east over the central and southern <br>Plains by later Monday through early Tuesday. A more widespread and <br>substantial severe weather outbreak is expected by midweek for areas even <br>farther east over the Lower and Middle Mississippi Valley. <br> <br>Orrison <br> <br>Graphics available at <br><a href="https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php"><u><a href="https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php" target="_blank">https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php</a></u></a> <br> </div> </div> <a onclick="javascript:displaylinks('dlinks-frtmr-disco')" href="javascript:;"> + Medium Range Forecast Discussion (Day 3-7)</a><br> <div id="dlinks-frtmr-disco" style="display: none"> <div class="dlinks-disco"> Extended Forecast Discussion <br>NWS Weather Prediction Center College Park MD <br>151 PM EST Sat Mar 1 2025 <br> <br>Valid 12Z Tue Mar 04 2025 - 12Z Sat Mar 08 2025 <br> <br> <br>...Numerous severe thunderstorms and heavy rainfall expected from <br>eastern Texas to the Deep South states midweek... <br> <br> <br>...General Overview... <br> <br>The weather pattern across the continental U.S. will be quite <br>active next week with two big storm systems of interest. The first <br>and strongest low pressure system will be gathering strength across <br>the central Plains on Tuesday in response to an amplifying upper <br>level shortwave exiting the Rockies. Heavy rainfall, severe <br>thunderstorms, and strong winds will be making weather headlines <br>across the south-central U.S. through midweek, and the storm system <br>reaches the East Coast by Wednesday night. A second and slightly <br>weaker storm system develops over the Rockies on Thursday and <br>likely reaches the central Plains on Friday, with additional <br>showers and thunderstorms expected. This should reach the East <br>Coast states by next Saturday as the flow pattern aloft remains <br>rather progressive. <br> <br>...Guidance/Predictability Assessment... <br> <br>Models tended to be in good agreement regarding the synoptic <br>pattern on day 3. Deterministic guidance begins to diverge <br>noticeably beginning on day 5 over the Central U.S.. The 00z Euro <br>and Canadian are noticeable outliers, thus were reduced in <br>weighting considerably beyond beginning on day 5. The days 3 and 4 <br>blends consisted of equal parts deterministic 00z ECMWF and 06z GFS <br>with some 00z CMC/UKMET included. Uncertainty regarding an incoming <br>Pacific trough prompted a more ensemble mean and deterministic <br>GFS-centric <br>blend on day 5 followed by ensemble mean favored blends on days 6 <br>and 7. <br> <br> <br>...Weather/Hazards Highlights... <br> <br>An amplified upper level trough reaches the western High Plains by <br>Tuesday morning, along with a rapidly developing surface low that <br>will track eastward across the Midwest and then across the Great <br>Lakes. Abundant Gulf moisture and instability will be advected <br>northward to fuel widespread heavy rainfall from the southern <br>Plains to the eastern U.S. through early Thursday. The latest <br>guidance continues to signal the heaviest rainfall totals from the <br>ArkLaTex to the western Ohio Valley on Tuesday/Tuesday night. Some <br>areas have wet antecedent soil conditions, which would exacerbate <br>flood potential. The Slight Risk area is maintained on the Day 4 <br>excessive rainfall outlook across Arkansas and southern Missouri, <br>and a new Slight Risk area will be added for portions of southern <br>Iowa and northern Missouri. Once this storm system reaches the <br>Northeast U.S. Wednesday, a Marginal Risk is planned for the new <br>Day 5 outlook from New Jersey to southern Maine where 1-2 inches of <br>rainfall is possible. <br> <br>Another facet of this low pressure system will be the elevated <br>potential for widespread severe weather from eastern Texas to the <br>lower Mississippi River Valley through Tuesday night. A favorable <br>combination of kinematics and deep moisture increases the threat of <br>damaging winds, large hail, and tornadoes. The Storm Prediction <br>Center has additional information pertaining to this. <br> <br>A second storm system is expected to follow behind this, and bring <br>additional rounds of showers and thunderstorms to many of these <br>same areas, but the current thinking is that it will not be as <br>intense as the midweek storm system. Some strong to severe <br>thunderstorms will also be possible with this event late in the <br>week, depending on how low level boundaries evolve. <br> <br>Kebede/Hamrick <br> <br> <br>Additional 3-7 Day Hazard information can be found on the WPC <br>medium range hazards outlook chart at: <br><a href="https://www.wpc.ncep.noaa.gov/threats/threats.php"><u><a href="https://www.wpc.ncep.noaa.gov/threats/threats.php" target="_blank">https://www.wpc.ncep.noaa.gov/threats/threats.php</a></u></a> <br> <br>WPC medium range 500mb heights, surface systems, weather grids, <br>quantitative precipitation forecast (QPF), excessive rainfall <br>outlook (ERO), winter weather outlook (WWO) probabilities, heat <br>indices, and Key Messages can be accessed from: <br> <br><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif"><u><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif" target="_blank">https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif"><u><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif" target="_blank">https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html"><u><a href="https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html" target="_blank">https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml"><u><a href="https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml" target="_blank">https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/#page=ero"><u><a href="https://www.wpc.ncep.noaa.gov/#page=ero" target="_blank">https://www.wpc.ncep.noaa.gov/#page=ero</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4"><u><a href="https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4" target="_blank">https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/heat_index.shtml"><u><a href="https://www.wpc.ncep.noaa.gov/heat_index.shtml" target="_blank">https://www.wpc.ncep.noaa.gov/heat_index.shtml</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/#page=ovw"><u><a href="https://www.wpc.ncep.noaa.gov/#page=ovw" target="_blank">https://www.wpc.ncep.noaa.gov/#page=ovw</a></u></a> <br> </div> </div> <a onclick="javascript:displaylinks('dlinks-frthi-disco')" href="javascript:;"> + Hawaii Forecast Discussion (Day 1-7)</a><br> <div id="dlinks-frthi-disco" style="display: none"> <div class="dlinks-disco"> <br>Hawaii Extended Forecast Discussion <br>NWS Weather Prediction Center College Park MD <br>227 AM EST Sat Mar 1 2025 <br> <br>Valid 00Z Sun Mar 2 2025 - 00Z Sun Mar 9 2025 <br> <br>The surface high that will initially be in place northeast of <br>Hawaii Saturday will reduce its influence across the state going <br>into Sunday as a col develops within the subtropical ridge axis. <br>A frontal boundary appears likely to cross the northwestern <br>Islands early in the week, with the surface high building north of <br>the state near 30 degrees north. The core of this high makes <br>steady eastward progress through the week, with another col in the <br>ridge developing north of the state for the end of the week. <br>There is good overall agreement in the ensemble means regarding <br>the synoptic scale pattern through the forecast period. <br> <br>The model guidance suggests the heaviest rainfall with the cold <br>front Monday should stay well north of the Islands, with mainly <br>trade wind enhanced showers expected most days and no major <br>rainfall events on the horizon. In terms of winds, mainly ESE <br>flow can be expected this weekend, followed by stronger easterly <br>flow for the first half of next week with the high building in to <br>the north. This also holds true going into the end of the week, <br>although there may be some veering to the southeast depending on <br>the timing and evolution of the next trough/col. <br> <br>Hamrick <br> <br> <br> <br> <br> </div> </div> <a onclick="javascript:displaylinks('dlinks-frt')" href="javascript:;"> + Additional Links</a> <div id="dlinks-frt" style="display: none"> <ul class="linkslist"> <li>» <a href="/html/sfc2.shtml" alt="Surface Products">More Surface Analysis Products</a></li> <li>» <a href="/basicwx/basicwx_ndfd.php" alt="Short Range Products">More Short Range Products</a></li> <li>» <a href="/medr/medr.shtml" alt="Medium Range Products">More Medium Range Products</a></li> </ul> </div> </div> </div> </div> <div class="product-content-new" id="qpf">   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).keydown( function(e) { if (e.keyCode == 39) { 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OnMouseOver="show_tab('qpf48','TABday2','2')" class="overview" alt="Day2"><span id="TABday2T-qpf48" class="blank">Day 6/7</span></a></li> </ul> </div> </div>  <div id= "options-wrapper" class="options-wrapper"> <div id="options-tab-qpf" class="options-off"> <div class="options-container"> <div class="options-inner1"> <a onclick="javascript:displayoptions('qpf');" href="javascript:;"><img class="options-icon" src="para/para_css/images/options.png" alt="options"/></a> </div> <div id="opts-qpf" class="options-inner2" style="display: none"> Image Options: <div class="options-form"> <form> <input id="qpf-opt1" type="radio" name="format" value="opt1" onclick="javascript:imgformatqpf('opt1');" checked ><label for="qpf-opt1">24 Hour/Multi Day QPF</label><br> <input id="qpf-opt2" type="radio" name="format" value="opt2" onclick="javascript:imgformatqpf('opt2');"><label for="qpf-opt2">12-Hourly QPF (Day 1-3)</label> <br> <input id="qpf-opt3" type="radio" name="format" value="opt3" onclick="javascript:imgformatqpf('opt3');"><label for="qpf-opt3">6-Hourly QPF (Day 1-3)</label> <br> <input id="qpf-opt4" type="radio" name="format" value="opt4" onclick="javascript:imgformatqpf('opt4');"><label for="qpf-opt4">48-Hour QPF (Day 4-5/6-7)</label> <br> </form> </div> <div class='options-form2'><a href="../pqpf/conus_hpc_pqpf.php" target="_blank"> » Probabilistic QPF (Day 1-3)</a></div> <div class='options-form3'><a href="/qpf/epm/extreme_precip_monitor.php" target="_blank"> » Extreme Precipitation<br>   Monitor</a></div> </div> </div> </div> </div>  <script> function imgformatqpf(nam) { var prodval; var prodnav; var prodimg; prodval = "validtimes-qpf-" + nam; prodnav = "fordays-qpf-" + nam; prodimg = "forimg-qpf-" + nam; //Change valid times document.getElementById("validtimes-qpf-opt1").style.display= "none"; document.getElementById("validtimes-qpf-opt2").style.display= "none"; document.getElementById("validtimes-qpf-opt3").style.display= "none"; document.getElementById("validtimes-qpf-opt4").style.display= "none"; document.getElementById(prodval).style.display = "block"; //Change navbar document.getElementById("fordays-qpf-opt1").style.display= "none"; document.getElementById("fordays-qpf-opt2").style.display= "none"; document.getElementById("fordays-qpf-opt3").style.display= "none"; document.getElementById("fordays-qpf-opt4").style.display= "none"; document.getElementById(prodnav).style.display = "block"; //Change images document.getElementById("forimg-qpf-opt1").style.display= "none"; document.getElementById("forimg-qpf-opt2").style.display= "none"; document.getElementById("forimg-qpf-opt3").style.display= "none"; document.getElementById("forimg-qpf-opt4").style.display= "none"; document.getElementById(prodimg).style.display = "block"; } </script>  <div id="forimg-qpf-opt1" style='display:block'> <div id='TABday1G-qpf' style='display:block;'><img class='display-img-max' src='../qpf/fill_94qwbg.gif' id='qpfimg1' alt='Day 1 image not available'></div><div id='TABday2G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/fill_98qwbg.gif' id='qpfimg2' alt='Day 2 image not available'></div><div id='TABday3G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/fill_99qwbg.gif' id='qpfimg3' alt='Day 3 image not available'></div><div id='TABday4G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/day4p24iwbg_fill.gif' id='qpfimg4' alt='Day 4 image not available'></div><div id='TABday5G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/day5p24iwbg_fill.gif' id='qpfimg5' alt='Day 5 image not available'></div><div id='TABday6G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/day6p24iwbg_fill.gif' id='qpfimg6' alt='Day 6 image not available'></div><div id='TABday7G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/day7p24iwbg_fill.gif' id='qpfimg7' alt='Day 7 image not available'></div><div id='TABday8G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/d12_fill.gif' id='qpfimg8' alt='Day 8 image not available'></div><div id='TABday9G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/d13_fill.gif' id='qpfimg9' alt='Day 9 image not available'></div><div id='TABday10G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/p120i.gif' id='qpfimg10' alt='Day 10 image not available'></div><div id='TABday11G-qpf' style='display:none;'><img class='display-img-max' src='../qpf/p168i.gif' id='qpfimg11' alt='Day 11 image not available'></div> </div> <div id="forimg-qpf-opt2" style='display:none'> <div id='TABday1G-qpftwl' style='display:block;'><img class='display-img-max' src='../qpf/hpcqpf_2025030118_12hr_f012.gif ' id='qpfimg1' alt='Day 1 image not available'></div><div id='TABday2G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f012.gif ' id='qpfimg2' alt='Day 2 image not available'></div><div id='TABday3G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f018.gif ' id='qpfimg3' alt='Day 3 image not available'></div><div id='TABday4G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f024.gif ' id='qpfimg4' alt='Day 4 image not available'></div><div id='TABday5G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f030.gif ' id='qpfimg5' alt='Day 5 image not available'></div><div id='TABday6G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f036.gif ' id='qpfimg6' alt='Day 6 image not available'></div><div id='TABday7G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f042.gif ' id='qpfimg7' alt='Day 7 image not available'></div><div id='TABday8G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f048.gif ' id='qpfimg8' alt='Day 8 image not available'></div><div id='TABday9G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f054.gif ' id='qpfimg9' alt='Day 9 image not available'></div><div id='TABday10G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f060.gif ' id='qpfimg10' alt='Day 10 image not available'></div><div id='TABday11G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f066.gif ' id='qpfimg11' alt='Day 11 image not available'></div><div id='TABday12G-qpftwl' style='display:none;'><img class='display-img-max' src='../qpf/hpcqpf_2025030200_12hr_f072.gif ' id='qpfimg12' alt='Day 12 image not available'></div> </div> <div id="forimg-qpf-opt3" style='display:none'> <div id='TABday1G-qpfsix' style='display:block;'><img class='display-img-max' src='../qpf/fill_92ewbg.gif' id='qpfimgsix1' alt='Day 1 image not available'></div><div id='TABday2G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_93ewbg.gif' id='qpfimgsix2' alt='Day 2 image not available'></div><div id='TABday3G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9eewbg.gif' id='qpfimgsix3' alt='Day 3 image not available'></div><div id='TABday4G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9fewbg.gif' id='qpfimgsix4' alt='Day 4 image not available'></div><div id='TABday5G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9gewbg.gif' id='qpfimgsix5' alt='Day 5 image not available'></div><div id='TABday6G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9hewbg.gif' id='qpfimgsix6' alt='Day 6 image not available'></div><div id='TABday7G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9iewbg.gif' id='qpfimgsix7' alt='Day 7 image not available'></div><div id='TABday8G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9jewbg.gif' id='qpfimgsix8' alt='Day 8 image not available'></div><div id='TABday9G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9kewbg.gif' id='qpfimgsix9' alt='Day 9 image not available'></div><div id='TABday10G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9lewbg.gif' id='qpfimgsix10' alt='Day 10 image not available'></div><div id='TABday11G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9oewbg.gif' id='qpfimgsix11' alt='Day 11 image not available'></div><div id='TABday12G-qpfsix' style='display:none;'><img class='display-img-max' src='../qpf/fill_9newbg.gif' id='qpfimgsix12' alt='Day 12 image not available'></div> </div> <div id="forimg-qpf-opt4" style='display:none'> <div id='TABday1G-qpf48' style='display:block;'><img class='display-img-max' src='../qpf/95ep48iwbg_fill.gif' id='qpfimg481' alt='Day 1 image not available'></div><div id='TABday2G-qpf48' style='display:none;'><img class='display-img-max' src='../qpf/97ep48iwbg_fill.gif' id='qpfimg482' alt='Day 2 image not available'></div> </div>  <div id='links-qpf' class='links-max'> <a href="/pqpf/conus_hpc_pqpf.php" target="_blank" class="linksmajor"> » View Probabilistic Precipitation Guidance (Day 1-3)</a><br> <a href="/qpf/epm/extreme_precip_monitor.php" target="_blank" class="linksmajor"> » Extreme Precipitation Monitor</a><br>  <a onclick="javascript:displaylinks('dlinks-qpf')" href="javascript:;"> + Additional Links</a> <div id="dlinks-qpf" style="display: none"> <ul class="linkslist"> <li>» <a href="/html/hpcverif.shtml#qpf" alt="Product Verification">Product Verification</a></li> <li>» <a href="/archives/qpf/get_qpf_images.php" alt="Product Archive">Product Archive</a></li> <li>» <a href="/html/fam2.shtml#qpf" alt="Product Info">Product Info</a></li> <li>» Additional formats of QPF: <a href="https://ftp.wpc.ncep.noaa.gov/2p5km_qpf/" alt="GRIB2">GRIB 2</a> | <a href="../html/about_gis.shtml" alt="Shapefiles">Shapefiles</a> | <a href="../kml/kmlproducts.php" alt="KML">KML</a> </li> <li>» <a href="/qpf/qpf2.shtml" alt="Other Products">Other QPF Products</a></li> </ul> </div> </div> </div> </div> <div class="product-content-new" id="ero">   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).keydown( function(e) { if (e.keyCode == 39) { $(".overviewe:focus").closest('li').next().find('a.overviewe').focus(); } if (e.keyCode == 37) { $(".overviewe:focus").closest('li').prev().find('a.overviewe').focus(); } } ); $(function() { //$('#firste').focus(); }); </script> <div id='content-ero' class='display-content-max'> <div class='display-text'> <div class="display-title">Excessive Rainfall Forecasts <a href="qpf/excessive_rainfall_outlook_ero.php" alt="Interactive Page" class="legacy-link">Interactive Page</a>:</div> <div id='TABday1S-ero' style='display: block' class='display-validtime'>Valid 16Z Sat Mar 01 2025 - 12Z Sun Mar 02 2025</div><div id='TABday2S-ero' style='display: none' class='display-validtime'>Valid 12Z Sun Mar 02 2025 - 12Z Mon Mar 03 2025</div><div id='TABday3S-ero' style='display: none' class='display-validtime'>Valid 12Z Mon Mar 03 2025 - 12Z Tue Mar 04 2025</div><div id='TABday4S-ero' style='display: none' class='display-validtime'>Valid 12Z Tue Mar 4 2025 - 12Z Wed Mar 5 2025</div><div id='TABday5S-ero' style='display: none' class='display-validtime'>Valid 12Z Wed Mar 5 2025 - 12Z Thu Mar 6 2025</div>    <div class="navbar"> <ul id="minitabs"> <li><a href="#" OnMouseOver="show_tab('ero','TABday1','5')" class="overviewe" onfocus="show_tab('ero','TABday1','5')" id="firste" alt="Day1"><span id="TABday1T-ero" class="active-forecast">Day 1</span></a></li><li><a href="#" OnMouseOver="show_tab('ero','TABday2','5')" class="overviewe" onfocus="show_tab('ero','TABday2','5')" alt="Day2"><span id="TABday2T-ero" class="blank">Day 2</span></a></li><li><a href="#" OnMouseOver="show_tab('ero','TABday3','5')" class="overviewe" onfocus="show_tab('ero','TABday3','5')" alt="Day3"><span id="TABday3T-ero" class="blank">Day 3</span></a></li><li class=testtab><a href="#" OnMouseOver="show_tab('ero','TABday4','5')" class="overviewe" onfocus="show_tab('ero','TABday4','5')" alt="Day4"><span id="TABday4T-ero" class="blank">Day 4</span></a></li><li class=testtab><a href="#" OnMouseOver="show_tab('ero','TABday5','5')" class="overviewe" onfocus="show_tab('ero','TABday5','5')" alt="Day5"><span id="TABday5T-ero" class="blank">Day 5</span></a></li> </ul> </div> </div>    <div> <div id='TABday1G-ero' style='display:block;'><img class='display-img-max' src='../qpf/94ewbg.gif' id='eroimg1' alt='Day 1 image not available'></div><div id='TABday2G-ero' style='display:none;'><img class='display-img-max' src='../qpf/98ewbg.gif' id='eroimg2' alt='Day 2 image not available'></div><div id='TABday3G-ero' style='display:none;'><img class='display-img-max' src='../qpf/99ewbg.gif' id='eroimg3' alt='Day 3 image not available'></div><div id='TABday4G-ero' style='display:none;'><img class='display-img-max' src='../qpf/ero_d45/images/d4wbg.gif' id='eroimg4' alt='Day 4 image not available'></div><div id='TABday5G-ero' style='display:none;'><img class='display-img-max' src='../qpf/ero_d45/images/d5wbg.gif' id='eroimg5' alt='Day 5 image not available'></div> </div>  <div id='links-ero' class='links-max'> <a href="/qpf/excessive_rainfall_outlook_ero.php">Interactive Page</> <br> <a onclick="javascript:displaylinks('dlinks-ero-disco')" href="javascript:;"> + Forecast Discussion</a><br> <div id="dlinks-ero-disco" style="display: none"> <div id='TABday1D-ero' class='dlinks-disco' style='display: block'> <br>Excessive Rainfall Discussion <br>NWS Weather Prediction Center College Park MD <br>203 PM EST Sat Mar 1 2025 <br>Day 1 <br>Valid 16Z Sat Mar 01 2025 - 12Z Sun Mar 02 2025 <br> <br>The probability of rainfall exceeding flash flood guidance is less <br>than 5 percent. <br> <br>Cook/Roth <br> <br> <br>Day 1 threat area: <a href="https://www.wpc.ncep.noaa.gov/qpf/94epoints.txt"<u>www.wpc.ncep.noaa.gov/qpf/94epoints.txt</u></a> <br></div><div id='TABday2D-ero' class='dlinks-disco' style='display: none'> <br>Excessive Rainfall Discussion <br>NWS Weather Prediction Center College Park MD <br>203 PM EST Sat Mar 1 2025 <br>Day 2 <br>Valid 12Z Sun Mar 02 2025 - 12Z Mon Mar 03 2025 <br> <br>The probability of rainfall exceeding flash flood guidance is less <br>than 5 percent. <br> <br>Chenard <br> <br> <br>Day 2 threat area: <a href="https://www.wpc.ncep.noaa.gov/qpf/98epoints.txt"<u>www.wpc.ncep.noaa.gov/qpf/98epoints.txt</u></a> <br></div><div id='TABday3D-ero' class='dlinks-disco' style='display: none'> <br>Excessive Rainfall Discussion <br>NWS Weather Prediction Center College Park MD <br>203 PM EST Sat Mar 1 2025 <br>Day 3 <br>Valid 12Z Mon Mar 03 2025 - 12Z Tue Mar 04 2025 <br> <br>The probability of rainfall exceeding flash flood guidance is less <br>than 5 percent. <br> <br>19z Update: At the moment leaning towards the guidance that <br>produces more widespread convection by late Monday night over <br>central and eastern OK. Our areal averaged QPF has increased into <br>the 0.5"-1" range, but would expect totals to locally exceed 2". <br>Still think convection will be progressive enough to limit the <br>flash flood risk, especially given the drier antecedent conditions <br>over the area. Thus will continue to hold off any risk area, <br>although a localized urban flash flood threat can not be ruled out, <br>and still possible a Marginal risk is eventually needed. <br> <br>Chenard <br> <br>...Previous Discussion... <br> <br>...Southeast Oklahoma... <br>A cold low progresses from the Great Basin into the High Plains of <br>CO by Tuesday morning. This leads to the formation of a CO cyclone <br>late Monday which advances eastward across southwest KS. Warm air <br>advection ahead of the cyclone is expected to advect 500-1000 J/kg <br>of MU CAPE and precipitable water values of 1.25"+ by Tuesday <br>morning into southeast OK. Inflow at 850 hPa accelerates past 50 <br>kts. Since the airmass in the wake of its cold front is more dry <br>than cold, instability lurks in its "cold sector" as well. NAM <br>parameters suggest organized convection should occur either in the <br>form/mode of supercells or a squall line -- assuming convection is <br>around for 4+ hours and can form a cold pool to force forward <br>propagation -- somewhere near southeast OK. For the moment, only <br>the 00z Canadian Regional model brings rainfall amounts over 1.5" <br>(local spots of 3-4" near the Red River Valley of the South). The <br>region has been dry over the past week, allowing much of the <br>ArkLaTex and southeast OK (outside of the Ouachita mountains) to <br>not be particularly sensitive to heavy rainfall should the 00z <br>Canadian verify. While the risk of excessive rainfall is non- zero, <br>believe it still remains under the 5 percent threshold for the <br>time being. <br> <br>Roth <br> <br>Day 3 threat area: <a href="https://www.wpc.ncep.noaa.gov/qpf/99epoints.txt"<u>www.wpc.ncep.noaa.gov/qpf/99epoints.txt</u></a> <br></div><div id='TABday4D-ero' class='dlinks-disco' style='display: none'>Extended Forecast Discussion <br>NWS Weather Prediction Center College Park MD <br>151 PM EST Sat Mar 1 2025 <br> <br> <br>An amplified upper level trough reaches the western High Plains by <br>Tuesday morning, along with a rapidly developing surface low that <br>will track eastward across the Midwest and then across the Great <br>Lakes. Abundant Gulf moisture and instability will be advected <br>northward to fuel widespread heavy rainfall from the southern <br>Plains to the eastern U.S. through early Thursday. The latest <br>guidance continues to signal the heaviest rainfall totals from the <br>ArkLaTex to the western Ohio Valley on Tuesday/Tuesday night. Some <br>areas have wet antecedent soil conditions, which would exacerbate <br>flood potential. The Slight Risk area is maintained on the Day 4 <br>excessive rainfall outlook across Arkansas and southern Missouri, <br>and a new Slight Risk area will be added for portions of southern <br>Iowa and northern Missouri. Once this storm system reaches the <br>Northeast U.S. Wednesday, a Marginal Risk is planned for the new <br>Day 5 outlook from New Jersey to southern Maine where 1-2 inches of <br>rainfall is possible. <br> <br>Another facet of this low pressure system will be the elevated <br>potential for widespread severe weather from eastern Texas to the <br>lower Mississippi River Valley through Tuesday night. A favorable <br>combination of kinematics and deep moisture increases the threat of <br>damaging winds, large hail, and tornadoes. The Storm Prediction <br>Center has additional information pertaining to this. <br> <br>A second storm system is expected to follow behind this, and bring <br>additional rounds of showers and thunderstorms to many of these <br>same areas, but the current thinking is that it will not be as <br>intense as the midweek storm system. Some strong to severe <br>thunderstorms will also be possible with this event late in the <br>week, depending on how low level boundaries evolve. <br> <br>Kebede/Hamrick <br> <br> <br></div><div id='TABday5D-ero' class='dlinks-disco' style='display: none'>Extended Forecast Discussion <br>NWS Weather Prediction Center College Park MD <br>151 PM EST Sat Mar 1 2025 <br> <br> <br>An amplified upper level trough reaches the western High Plains by <br>Tuesday morning, along with a rapidly developing surface low that <br>will track eastward across the Midwest and then across the Great <br>Lakes. Abundant Gulf moisture and instability will be advected <br>northward to fuel widespread heavy rainfall from the southern <br>Plains to the eastern U.S. through early Thursday. The latest <br>guidance continues to signal the heaviest rainfall totals from the <br>ArkLaTex to the western Ohio Valley on Tuesday/Tuesday night. Some <br>areas have wet antecedent soil conditions, which would exacerbate <br>flood potential. The Slight Risk area is maintained on the Day 4 <br>excessive rainfall outlook across Arkansas and southern Missouri, <br>and a new Slight Risk area will be added for portions of southern <br>Iowa and northern Missouri. Once this storm system reaches the <br>Northeast U.S. Wednesday, a Marginal Risk is planned for the new <br>Day 5 outlook from New Jersey to southern Maine where 1-2 inches of <br>rainfall is possible. <br> <br>Another facet of this low pressure system will be the elevated <br>potential for widespread severe weather from eastern Texas to the <br>lower Mississippi River Valley through Tuesday night. A favorable <br>combination of kinematics and deep moisture increases the threat of <br>damaging winds, large hail, and tornadoes. The Storm Prediction <br>Center has additional information pertaining to this. <br> <br>A second storm system is expected to follow behind this, and bring <br>additional rounds of showers and thunderstorms to many of these <br>same areas, but the current thinking is that it will not be as <br>intense as the midweek storm system. Some strong to severe <br>thunderstorms will also be possible with this event late in the <br>week, depending on how low level boundaries evolve. <br> <br>Kebede/Hamrick <br> <br> <br></div> </div> <a onclick="javascript:displaylinks('dlinks-ero')" href="javascript:;"> + Additional Links</a> <div id="dlinks-ero" style="display: none"> <ul class="linkslist"> <li>» <a href="/html/fam2.shtml#excessrain" alt="Product Info">Product Info</a></li> <li>» <a href="/para/para_images/ERO_Categories.png" alt="Understanding WPC Excessive Rainfall Risk Categories">Understanding WPC Excessive Rainfall Risk Categories</a></li> <li>» <a href="/qpf/eroclimo/" alt="ERO Climatology">Excessive Rainfall Outlook Climatology</a></li> </ul> </div> </div> </div> </div> <div class="product-content-new" id="wwx">   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).keydown( function(e) { if (e.keyCode == 39) { $(".overviewwin:focus").closest('li').next().find('a.overviewwin').focus(); } if (e.keyCode == 37) { $(".overviewwin:focus").closest('li').prev().find('a.overviewwin').focus(); } } ); $(function() { $('#firstwin').focus(); }); </script> <div id='content-wwx' class='display-content-max'> <div class='display-text'> <div class="display-title">Winter Weather Forecasts <a href="/wwd/winter_wx.shtml" alt="Legacy Page" class="legacy-link">Legacy Page</a>:</div> <div id='TABday1S-wwx' style='display: block' class='display-validtime'> <snippet>Valid 00Z 03/02/2025 - 00Z 03/03/2025</snippet> </div><div id='TABday2S-wwx' style='display: none' class='display-validtime'> <snippet>Valid 00Z 03/03/2025 - 00Z 03/04/2025</snippet> </div><div id='TABday3S-wwx' style='display: none' class='display-validtime'> <snippet>Valid 00Z 03/04/2025 - 00Z 03/05/2025</snippet> </div><div id='TABday4S-wwx' style='display: none' class='display-validtime'> <snippet>Valid 12Z 03/04/2025 - 12Z 03/05/2025</snippet> </div><div id='TABday5S-wwx' style='display: none' class='display-validtime'> <snippet>Valid 12Z 03/05/2025 - 12Z 03/06/2025</snippet> </div><div id='TABday6S-wwx' style='display: none' class='display-validtime'> <snippet>Valid 12Z 03/06/2025 - 12Z 03/07/2025</snippet> </div><div id='TABday7S-wwx' style='display: none' class='display-validtime'> <snippet>Valid 12Z 03/07/2025 - 12Z 03/08/2025</snippet> </div>    <div class="navbar" id="fordays"> <ul id="minitabs"> <li class="cforday"><a href="#" OnMouseOver="show_tab('wwx','TABday1','7')" class="overviewwin" onfocus="show_tab('wwx','TABday1','7')" id="firstwin" alt="Day1"><span id="TABday1T-wwx" class="active-forecast">Day 1</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('wwx','TABday2','7')" class="overviewwin" onfocus="show_tab('wwx','TABday2','7')" alt="Day2"><span id="TABday2T-wwx" class="blank">Day 2</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('wwx','TABday3','7')" class="overviewwin" onfocus="show_tab('wwx','TABday3','7')" alt="Day3"><span id="TABday3T-wwx" class="blank">Day 3</span></a></li><li class="cforday"><span class='nav-vline'> </span><a href="#" OnMouseOver="show_tab('wwx','TABday4','7')" class="overviewwin" onfocus="show_tab('wwx','TABday4','7')" alt="Day4"><span id="TABday4T-wwx" class="blank">Day 4</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('wwx','TABday5','7')" class="overviewwin" onfocus="show_tab('wwx','TABday5','7')" alt="Day5"><span id="TABday5T-wwx" class="blank">Day 5</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('wwx','TABday6','7')" class="overviewwin" onfocus="show_tab('wwx','TABday6','7')" alt="Day6"><span id="TABday6T-wwx" class="blank">Day 6</span></a></li><li class="cforday"><a href="#" OnMouseOver="show_tab('wwx','TABday7','7')" class="overviewwin" onfocus="show_tab('wwx','TABday7','7')" alt="Day7"><span id="TABday7T-wwx" class="blank">Day 7</span></a></li> <li class="cforday"><a title="more about WPC's Winter Weather Forecasts" href="#" onclick="window.open('../../wwd/wwd_info.html','newwindow', 'width=900, height=500'); return false;"><img class="winwx-question" src="../para/para_css/images/question.png" height="14"></img></a></li>  </ul> </div> </div>  <div id= "options-wrapper" class="options-wrapper"> <div id="options-tab-wwx" class="options-off"> <div class="options-container"> <div class="options-inner1"> <a onclick="javascript:displayoptions('wwx');" href="javascript:;"><img class="options-icon" src="para/para_css/images/options.png" /></a> </div> <div id="opts-wwx" class="options-inner2" style="display: none"> Day 1-3 Image Options: <div class="options-form"> <form> <input id="wwx-for" type="radio" name="format" value="four" onclick="javascript:imgformatwwx('for');" checked ><label for="wwx-for">Snowfall (≥ 4”)</label> <br> <input id="wwx-egt" type="radio" name="format" value="eight" onclick="javascript:imgformatwwx('egt');"><label for="wwx-egt">Snowfall (≥ 8”)</label> <br> <input id="wwx-twl" type="radio" name="format" value="twelve" onclick="javascript:imgformatwwx('twl');"><label for="wwx-twl">Snowfall (≥ 12”)</label> <br> <input id="wwx-ice" type="radio" name="format" value="ice" onclick="javascript:imgformatwwx('ice');"><label for="wwx-ice">Freezing Rain (≥ .25”)</label> <br> <input id="wwx-com" type="radio" name="format" value="composite" onclick="javascript:imgformatwwx('com');"><label for="wwx-com">Composite Charts</label> <br>  </form> </div> <div class='options-form2'><a href="/pwpf/wwd_accum_probs.php" target="_blank">Interactive Map (Day 1-3)</a></div> <div class='options-form3'><a href="/wwd/pwpf_d47/pwpf_medr.php" target="_blank">Interactive Map (Day 4-7)</a></div> <div class='options-form3'><a href="/wwd/wssi/wssi.php" target="_blank">Winter Storm Severity Index</a></div> <div class='options-form3'><a href="/wwd/wssi/prob_wssi.php" target="_blank">Probabilistic Winter Storm<br>Severity Index</a></div> <div class='options-form3'><a href="/wwd/wso" target="_blank">Experimental Winter<br>Storm Outlook</a></div> </div> </div> </div> </div>  <script> function imgformatwwx(nam) { //get new valid times and sources for images var newimgsrc = new Array(); 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document.getElementById(imgid).src = newimgsrc[i]; document.getElementById(valtimeid).innerHTML = newvaltime[i]; } } </script>  <div> <div id='TABday1G-wwx' style='display:block;'><img class='display-img-max' src='../wwd/day1_psnow_gt_04_conus.gif' id='wwximg1' alt='Day 1 image not available'></div><div id='TABday2G-wwx' style='display:none;'><img class='display-img-max' src='../wwd/day2_psnow_gt_04_conus.gif' id='wwximg2' alt='Day 2 image not available'></div><div id='TABday3G-wwx' style='display:none;'><img class='display-img-max' src='../wwd/day3_psnow_gt_04_conus.gif' id='wwximg3' alt='Day 3 image not available'></div><div id='TABday4G-wwx' style='display:none;'><img class='display-img-max' src='../wwd/pwpf_d47/gif/prbww_sn25_DAY4_conus.gif' id='wwximg4' alt='Day 4 image not available'></div><div id='TABday5G-wwx' style='display:none;'><img class='display-img-max' src='../wwd/pwpf_d47/gif/prbww_sn25_DAY5_conus.gif' id='wwximg5' alt='Day 5 image not available'></div><div id='TABday6G-wwx' style='display:none;'><img class='display-img-max' src='../wwd/pwpf_d47/gif/prbww_sn25_DAY6_conus.gif' id='wwximg6' alt='Day 6 image not available'></div><div id='TABday7G-wwx' style='display:none;'><img class='display-img-max' src='../wwd/pwpf_d47/gif/prbww_sn25_DAY7_conus.gif' id='wwximg7' alt='Day 7 image not available'></div> </div>  <div id='links-wwx' class='links-max'> <a href="/pwpf/wwd_accum_probs.php" target="_blank" class="linksmajor"> » Interactive Winter Weather Map (Day 1-3)</a><br> <a href="/wwd/pwpf_d47/pwpf_medr.php" target="_blank" class="linksmajor"> » Interactive Winter Weather Map (Day 4-7)</a><br> <a href="/wwd/wssi/wssi.php" target="_blank" class="linksmajor"> » Winter Storm Severity Index</a><br> <a href="https://www.wpc.ncep.noaa.gov/Prob_Precip/" target="_blank" class="linksmajor"> » Experimental Probabilistic Precipitation Portal</a><br> <a onclick="javascript:displaylinks('dlinks-wwx-disco')" href="javascript:;"> + Forecast Discussion (Day 1-3)</a><br> <div id="dlinks-wwx-disco" style="display: none"> <div class="dlinks-disco"> <br>Probabilistic Heavy Snow and Icing Discussion <br>NWS Weather Prediction Center College Park MD <br>235 PM EST Sat Mar 1 2025 <br> <br>Valid 00Z Sun Mar 02 2025 - 00Z Wed Mar 05 2025 <br> <br> <br>...Great Lakes & Northeast... <br>Day 1... <br> <br>Strong surface low pressure system exiting northern New England <br>this evening will continue to usher potent CAA behind an arctic <br>cold front clearing the East Coast tonight. Outside of lingering <br>wrap-around snow across northern Maine, heavy accumulating <br>snowfall through Sunday will be confined to localized lake-effect <br>bands. With 20-35 kt 850 mb winds out of the northwest, the best <br>chances for additional moderate snowfall is across the eastern MI <br>U.P. and areas southeast of Lake Ontario. Here, WPC probabilities <br>are low (10-30%) for an additional 4"+ of snow. <br> <br> <br>...California & Great Basin... <br>Days 1-2... <br> <br>A closed upper-low tracking into California on Sunday will direct <br>IVT <br>topping out around 250 kg/m/s at the Sierra Nevada and Southern <br>California ranges. While SWrly low-level winds may provide some <br>marginal upslope flow enhancement, this IVT is not particularly <br>strong, thus limiting most heavy amounts to the highest/more remote <br>elevations. Snow levels are expected to be as low as 4,000ft from <br>the Sierra Nevada on east into the Great Basin, but the heavier <br>amounts will generally be confined to elevations above 6,000ft. <br>Snow will fall heaviest over the Sierra Nevada and as far north as <br>the Shasta/Siskiyou Sunday afternoon and into Sunday night. As the <br>upper low approaches Sunday night, Pacific moisture will spill over <br>into the Great Basin with moderate-to- heavy snowfall along the <br>6,000-7,000ft ridge lines of central Nevada Sunday night and into <br>Monday. Moisture and a potent upper low will then eventually reach <br>the Central Rockies late Monday. WPC probabilities depict <br>moderate- to-high chances (50-80%) for snowfall >8" at elevations <br>above 7,000ft in the Sierra Nevada through Monday morning. High <br>chances (70-90%) for >6" of snowfall exist along the ridges of <br>central Nevada through Monday evening. <br> <br> <br>...Northern & Central Rockies to the Central Plains... <br>Day 3... <br> <br>The upper low responsible for the mountain snow in the highly <br>elevated ranges of California and the Great Basin will make its <br>way into the Central Rockies on Monday and eventually the Central <br>Plains on Tuesday. Falling heights and residual Pacific moisture <br>will support moderate to locally heavy snowfall in the Wasatch, <br>Uinta, southern Wyoming Rockies, and northern Colorado Rockies. WPC <br>probabilities show moderate-to-high chances (50-80%) for snowfall <br>>8" at elevations above 9,000ft. Farther north, temperatures will <br>gradually cool as a cold front ushering in Canadian high pressure <br>moves south. Lingering Pacific moisture, combined with weak <br>easterly upslope flow will allow for light-to- moderate snowfall in <br>the Northern Rockies between Monday afternoon and Tuesday morning. <br> <br>There remains a fair amount of spread regarding the snow potential <br>in the Central and Northern Plains. The synoptic-scale jet stream <br>setup is generally agreed upon; a strong jet streak over northern <br>Mexico will place its divergent left-exit region over the central <br>Plains Monday night. Along with strong PVA ahead of the 500mb low <br>in the Rockies will result in rapid cyclogenesis in lee of the <br>Colorado Rockies that will organize and strengthen a surface low by <br>Tuesday. Where guidance differs are on the storm track, the rate <br>at which the storm deepens, and the extent to which the colder air <br>to the north is in place soon enough to result in a swath of heavy <br>snow in the Northern Plains. Today's guidance is starting to come <br>into better agreement with a dynamically colder band of <br>precipitation breaking out across the central High Plains Tuesday <br>morning, but with above average spread remaining on exact <br>placement. The GEFS members remain generally little faster and <br>therefor deeper/north with the storm by 00Z Wednesday compared to <br>the ECENS which is slower and farther south. This leads to some <br>differences regarding the location and magnitude of a potential <br>swath of snow on D3 extending from eastern Colorado through the <br>central Plains into eastern North Dakota. The one thing these <br>ensembles have in common is focusing on the Palmer Divide and <br>southeast WY with strong enough NErly upslope flow, along with <br>stronger dynamic cooling aloft to support heavier snowfall. <br>Interestingly, NAEFS mean IVT reaches >97.5th climatological <br>percentile even though flow is out of the north. However, any <br>faster storm motion could mean less snowfall, and the opposite for <br>heavier snow should the storm slow down. Through 00Z Wednesday, WPC <br>probabilities show moderate chances (40-60%) for snowfall >6" <br>along the Palmer Divide and parts of southeast Wyoming, with lesser <br>chances for >4" (10-30%) over parts of western Nebraska and south- <br>central South Dakota. <br> <br>With a lack of sufficiently cold air east of the Rockies, snowfall <br>potential will be more directly tied to the deformation axis <br>placement and dynamic cooling aloft from the Denver metro on north <br>and east. Given the potentially record-strong low pressure over the <br>Midwest by Tuesday night, greater impacts could be related to <br>strong winds. Residents in the Central and Northern Plains will <br>want to monitor the forecast closely over the weekend as this is a <br>complex storm system. <br> <br> <br>Snell/Mullinax <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> </div> </div> <a onclick="javascript:displaylinks('dlinks-wwx')" href="javascript:;"> + Additional Links</a> <div id="dlinks-wwx" style="display: none"> <ul class="linkslist"> <li>» <a href="/wwd/wso" target="_blank">Experimental Winter Storm Outlook</a></li> <li>» <a href="/wwd/wssi/prob_wssi.php" target="_blank">Probabilistic Winter Storm Severity Index</a></li> <li>» <a href="../verification/winwx/winwx.php" alt="Product Verification">Product Verification</a></li> <li>» <a href="../archives/web_pages/winwx/get_winwx_images.php" alt="Product Archive">Product Archive</a></li> <li>» <a href="../wwd/about.shtml" alt="Product Info">Product Info</a></li> <li>» <a href="../wwd/winter_wx.shtml" alt="Other Products">Other Winter Weather Products</a></li> </ul> </div> </div> </div> </div> <div class="product-content-new" id="med">   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script> <script> $(document).keydown( function(e) { if (e.keyCode == 39) { $(".overviewm:focus").closest('li').next().find('a.overviewm').focus(); 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} else { //display default fronts/pressures newimgsrc = ["..\/medr\/9jhwbg_conus.gif","..\/medr\/9khwbg_conus.gif","..\/medr\/9lhwbg_conus.gif","..\/medr\/9mhwbg_conus.gif","..\/medr\/9nhwbg_conus.gif"]; newvaltime = ["Valid 12Z Tue Mar 04, 2025","Valid 12Z Wed Mar 05, 2025","Valid 12Z Thu Mar 06, 2025","Valid 12Z Fri Mar 07, 2025","Valid 12Z Sat Mar 08, 2025"]; } //change sources in html var numprod = 5; for (i = 0; i < numprod; i++) { var idnum = i + 1; var imgid = 'medimg' + idnum ; var valtimeid = 'TABday' + idnum + 'S-med'; document.getElementById(imgid).src = newimgsrc[i]; document.getElementById(valtimeid).innerHTML = newvaltime[i]; } } </script>  <div> <div id='TABday1G-med' style='display:block;'><img class='display-img-max' src='../medr/9jhwbg_conus.gif' id='medimg1' alt='Day 1 image not available'></div><div id='TABday2G-med' style='display:none;'><img class='display-img-max' src='../medr/9khwbg_conus.gif' id='medimg2' alt='Day 2 image not available'></div><div id='TABday3G-med' style='display:none;'><img class='display-img-max' src='../medr/9lhwbg_conus.gif' id='medimg3' alt='Day 3 image not available'></div><div id='TABday4G-med' style='display:none;'><img class='display-img-max' src='../medr/9mhwbg_conus.gif' id='medimg4' alt='Day 4 image not available'></div><div id='TABday5G-med' style='display:none;'><img class='display-img-max' src='../medr/9nhwbg_conus.gif' id='medimg5' alt='Day 5 image not available'></div> </div>  <div id='links-med' class='links-max'> <a onclick="javascript:displaylinks('dlinks-med-disco')" href="javascript:;"> + Forecast Discussion</a><br> <div id="dlinks-med-disco" style="display: none"> <div class="dlinks-disco"> Extended Forecast Discussion <br>NWS Weather Prediction Center College Park MD <br>151 PM EST Sat Mar 1 2025 <br> <br>Valid 12Z Tue Mar 04 2025 - 12Z Sat Mar 08 2025 <br> <br> <br>...Numerous severe thunderstorms and heavy rainfall expected from <br>eastern Texas to the Deep South states midweek... <br> <br> <br>...General Overview... <br> <br>The weather pattern across the continental U.S. will be quite <br>active next week with two big storm systems of interest. The first <br>and strongest low pressure system will be gathering strength across <br>the central Plains on Tuesday in response to an amplifying upper <br>level shortwave exiting the Rockies. Heavy rainfall, severe <br>thunderstorms, and strong winds will be making weather headlines <br>across the south-central U.S. through midweek, and the storm system <br>reaches the East Coast by Wednesday night. A second and slightly <br>weaker storm system develops over the Rockies on Thursday and <br>likely reaches the central Plains on Friday, with additional <br>showers and thunderstorms expected. This should reach the East <br>Coast states by next Saturday as the flow pattern aloft remains <br>rather progressive. <br> <br>...Guidance/Predictability Assessment... <br> <br>Models tended to be in good agreement regarding the synoptic <br>pattern on day 3. Deterministic guidance begins to diverge <br>noticeably beginning on day 5 over the Central U.S.. The 00z Euro <br>and Canadian are noticeable outliers, thus were reduced in <br>weighting considerably beyond beginning on day 5. The days 3 and 4 <br>blends consisted of equal parts deterministic 00z ECMWF and 06z GFS <br>with some 00z CMC/UKMET included. Uncertainty regarding an incoming <br>Pacific trough prompted a more ensemble mean and deterministic <br>GFS-centric <br>blend on day 5 followed by ensemble mean favored blends on days 6 <br>and 7. <br> <br> <br>...Weather/Hazards Highlights... <br> <br>An amplified upper level trough reaches the western High Plains by <br>Tuesday morning, along with a rapidly developing surface low that <br>will track eastward across the Midwest and then across the Great <br>Lakes. Abundant Gulf moisture and instability will be advected <br>northward to fuel widespread heavy rainfall from the southern <br>Plains to the eastern U.S. through early Thursday. The latest <br>guidance continues to signal the heaviest rainfall totals from the <br>ArkLaTex to the western Ohio Valley on Tuesday/Tuesday night. Some <br>areas have wet antecedent soil conditions, which would exacerbate <br>flood potential. The Slight Risk area is maintained on the Day 4 <br>excessive rainfall outlook across Arkansas and southern Missouri, <br>and a new Slight Risk area will be added for portions of southern <br>Iowa and northern Missouri. Once this storm system reaches the <br>Northeast U.S. Wednesday, a Marginal Risk is planned for the new <br>Day 5 outlook from New Jersey to southern Maine where 1-2 inches of <br>rainfall is possible. <br> <br>Another facet of this low pressure system will be the elevated <br>potential for widespread severe weather from eastern Texas to the <br>lower Mississippi River Valley through Tuesday night. A favorable <br>combination of kinematics and deep moisture increases the threat of <br>damaging winds, large hail, and tornadoes. The Storm Prediction <br>Center has additional information pertaining to this. <br> <br>A second storm system is expected to follow behind this, and bring <br>additional rounds of showers and thunderstorms to many of these <br>same areas, but the current thinking is that it will not be as <br>intense as the midweek storm system. Some strong to severe <br>thunderstorms will also be possible with this event late in the <br>week, depending on how low level boundaries evolve. <br> <br>Kebede/Hamrick <br> <br> <br>Additional 3-7 Day Hazard information can be found on the WPC <br>medium range hazards outlook chart at: <br><a href="https://www.wpc.ncep.noaa.gov/threats/threats.php"><u><a href="https://www.wpc.ncep.noaa.gov/threats/threats.php" target="_blank">https://www.wpc.ncep.noaa.gov/threats/threats.php</a></u></a> <br> <br>WPC medium range 500mb heights, surface systems, weather grids, <br>quantitative precipitation forecast (QPF), excessive rainfall <br>outlook (ERO), winter weather outlook (WWO) probabilities, heat <br>indices, and Key Messages can be accessed from: <br> <br><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif"><u><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif" target="_blank">https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif"><u><a href="https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif" target="_blank">https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html"><u><a href="https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html" target="_blank">https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml"><u><a href="https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml" target="_blank">https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/#page=ero"><u><a href="https://www.wpc.ncep.noaa.gov/#page=ero" target="_blank">https://www.wpc.ncep.noaa.gov/#page=ero</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4"><u><a href="https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4" target="_blank">https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/heat_index.shtml"><u><a href="https://www.wpc.ncep.noaa.gov/heat_index.shtml" target="_blank">https://www.wpc.ncep.noaa.gov/heat_index.shtml</a></u></a> <br><a href="https://www.wpc.ncep.noaa.gov/#page=ovw"><u><a href="https://www.wpc.ncep.noaa.gov/#page=ovw" target="_blank">https://www.wpc.ncep.noaa.gov/#page=ovw</a></u></a> <br> </div> </div> <a onclick="javascript:displaylinks('dlinks-med')" href="javascript:;"> + Additional Links</a> <div id="dlinks-med" style="display: none"> <ul class="linkslist"> <li>» <a href="/archives/web_pages/medr/get_medr_products.php" alt="Product Archive">Product Archive</a></li> <li>» <a href="/medr/about_medr.shtml" alt="Product Info">Product Info</a></li> <li>» <a href="/medr/5dayfcst_wbg_conus.gif" alt="Product Info">Day 3-7 Surface Composite</a></li> <li>» <a href="/medr/medr.shtml" alt="Other Products">Other Medium Range Products</a></li> </ul> </div> </div> </div> </div> <div class="product-content-new" id="tls">  <div id='content-tls' class='display-content-max'> <div class='display-text'> <div class="display-title">Forecaster's Toolbox (Prototype)</div>   <div class="collab-block2"> <div class="collab-block2-title">Tools Generated at WPC</div> <div class="collab-tools-disclaim"> These tools are NOT operationally supported. Data may not update regularly due to workstation failure and/or data unavailability. </div> <div id="tools" class="collab-tools-content"> <a href="https://www.wpc.ncep.noaa.gov/rainfallreports" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">Intense Rainfall and Flash Flood Reports</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/Experimental_intense_rainfall.PNG' alt='Prototype Weather in Context' /> </div> <div class="collab-tools-des"> <p>Displays flood and flash flood reports as well as intense rainfall observations for user-selectable time ranges and customizable geographic regions. Includes ability to download reports and associated metadata in csv format. </div> </div> </a> <a href="./exper/gefs/gefs.html" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">GEFS Probabilities</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_includes/collaboration/gefsprobs.png' alt='GEFS Probs' /> </div> <div class="collab-tools-des"> <p>Plots of GEFS probabilistic forecast of precipitation, temperature, and sea-level pressure exceeding various thresholds.</p> </div> </div> </a> </div> <div id="tools" class="collab-tools-content"> <a href="./exper/lsr/lsr.php" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">Local Storm Reports</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/lsr.png' alt='Local Storm Reports' /> </div> <div class="collab-tools-des"> <p>Custom plots of Local Storm Reports across the Contiguous United States. Reports include rain, snow, ice, and severe weather, as well as other significant information from storm spotters.</p> </div> </div> </a> <a href="/qpf/epm/extreme_precip_monitor.php" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">Extreme Precipitation Monitor</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='/para/para_images/epm_exper_staticimage.png' alt='Extreme Precipitation Monitor' /> </div> <div class="collab-tools-des"> <p>Displays the climatological significance of precipitation forecast by WPC. The climatological significance is represented by Average Recurrence Intervals (ARIs) of precipitation estimates from NOAA Atlas-14 and Atlas2.</p> </div> </div> </a> </div> <div id="tools" class="collab-tools-content"> <a href="http://satable.ncep.noaa.gov/" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">Ensemble Situational Awareness Table</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/esat.png' alt='ESAT' /> </div> <div class="collab-tools-des"> <p>An interactive situational awareness table that displays anomalies, percentiles, and return intervals from the GEFS, NAEFS, and ECMWF Ensembles (login required to view ECMWF data). <p>*Please note that there is currently an issue where only users on a NOAA network can access this page. We are actively working to resolve this problem. </p> </div> </div> </a> <a href="/exper/ndfd/ndfd.html" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">NDFD Forecast Temperature Records</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/ndfdrecords_example.png' alt='NDFD Records' /> </div> <div class="collab-tools-des"> <p>Interactive display of where temperatures could approach or exceed records within the contiguous U.S. (based on NDFD temperature forecasts)                                                                                                                                                                                                                                     </p> </div> </div> </a> </div> <div id="tools" class="collab-tools-content"> <a href="/exper/ndfdmxmn/map.html" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">NWS NDFD Max/Min Temperatures and Departure from Normal</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/ndfd_maxmin_departure.gif' alt='NWS NDFD Max/Min Temperatures and Departure from Normal' /> </div> <div class="collab-tools-des"> <p>Displays Days 1-7 NDFD maximum and minimum temperatures, along with their respective departures from climatology. </div> </div> </a> <a href="/snowbands/view.php" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">Prototype Snowband Probability Forecasts</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/MTD_example.png' alt='Prototype Snowband Probability Forecasts' /> </div> <div class="collab-tools-des"> <p>An interactive tool that depicts areas of heavy snowfall from individual members of high-resolution short range ensemble forecasts. </div> </div> </a> </div> <div id="tools" class="collab-tools-content"> <a href="/hmt/weather_in_context/prototype/index.php" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">Weather in Context Prototype</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/wxincontext_staticimage.PNG' alt='Prototype Weather in Context' /> </div> <div class="collab-tools-des"> <p>Displays forecast information and its climatological context to quickly alert a forecaster when a record or neear-record breaking event is possible. This tool is available for both CONUS and Alaska. </div> </div> </a> <a href="/lowclusters/lowclusters.php" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">Automated Forecast Low Clusters</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='/lowclusters/lowclusters_latest.png' alt='Latest Automated Forecast Low Clusters' /> </div> <div class="collab-tools-des"> <p>Displays 0-72 hour cyclone forecast positions from global ensemble and deterministic model guidance. </div> </div> </a> </div> <div id="tools" class="collab-tools-content"> <a href="./exper/change/change.html" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">1/3/6/24-hr Changes</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./exper/change/tmpf_latest_24_us.gif' alt='1/3/4/24-hr Changes' /> </div> <div class="collab-tools-des"> <p>Change in weather parameters (temperature, dewpoint, surface pressure, etc) over the last 1/3/6/24 hours. Data is provided from the Real-Time Mesoscale Analysis (RTMA) or the Rapid Refresh (RAP).</p> </div> </div> </a> <a href="https://www.wpc.ncep.noaa.gov/heatrisk" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">Experimental HeatRisk</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/images/HeatRisk_example.png' alt='HeatRisk Map' /> </div> <div class="collab-tools-des"> <p>The experimental National Weather Service (NWS) HeatRisk is a color-numeric-based index that provides a forecast of the potential level of risk for heat-related impacts to occur over a 24-hour period, with forecasts available out through 7 days. </div> </div> </a> </div>  </div>  <div class="collab-block2"> <div class="collab-block2-title">Other Favorite Forecast Tools</div> <div id="tools" class="collab-tools-content"> <a href="http://www.eas.slu.edu/CIPS/ANALOG/analog.php" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">CIPS Guidance</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_includes/collaboration/cips.png' alt='CIPS Guidance' /> </div> <div class="collab-tools-des"> <p>Analog guidance that uses an objective approach to find historical events that are similar to the upcoming forecast.</p> </div> </div> </a> <a href="https://vlab.noaa.gov/web/mdl/nbm" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">National Blend of Models</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_includes/collaboration/nblend.png' alt='National Blend' /> </div> <div class="collab-tools-des"> <p>Nationally consistent and skillful suite of calibrated forecast guidance based on a blend of both NWS and non-NWS numerical weather prediction model data and post-processed model guidance.</p> </div> </div> </a> </div> <div id="tools" class="collab-tools-content"> <a href="https://cw3e.ucsd.edu/iwv-and-ivt-forecasts/" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">Atmospheric River Portal</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_includes/collaboration/cw3e_arportal.png' alt='AR Portal' /> </div> <div class="collab-tools-des"> <p>A portal for atmospheric river forecasts and diagnostics from the Center for Western Weather and Water Extremes.</p> </div> </div> </a> <a href="http://www.emc.ncep.noaa.gov/users/meg/gefs_plumes/" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">GEFS Plumes</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_includes/collaboration/gefs.png' alt='GEFS Plumes' /> </div> <div class="collab-tools-des"> <p>An interactive display of time series plots from GEFS ensemble members at a point.</p> </div> </div> </a> </div> <div id="tools" class="collab-tools-content"> <a href="https://www.spc.noaa.gov/exper/" target="_blank"> <div class="collab-tools-border-right"> <div class="collab-tools-title">SPC Forecast Tools</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_images/spctools.png' alt='SPC Tools' /> </div> <div class="collab-tools-des"> <p>A variety of useful tools generated at The Storm Prediction Center (SPC).</p> </div> </div> </a> <a href="https://ecmwf.int/en/forecasts/charts" target="_blank"> <div class="collab-tools-border"> <div class="collab-tools-title">ECMWF Forecast Charts</div> <div class="collab-tools-image"> <img class='collab-tools-image-logo' src='./para/para_includes/collaboration/ecmwf.png' alt='ECMWF' /> </div> <div class="collab-tools-des"> <p>Output from the ECMWF Integrated Forecasting System (IFS), including medium range deterministic, ensemble, and machine learning model forecasts.</p> </div> </div> </a> </div> </div> </div> </div> </div> </div> </div> </div> <script 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