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href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Cwmwlws rootpage-Cwmwlws skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Neidio i'r cynnwys</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Safle"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Prif ddewislen" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Prif ddewislen</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Prif ddewislen</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">cuddio</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Panel llywio </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage" class="mw-list-item"><a href="/wiki/Hafan" title="Ymweld â'r Hafan [z]" accesskey="z"><span>Hafan</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wicipedia:Porth_y_Gymuned" title="Pethau i'w gwneud, adnoddau a thudalennau'r gymuned"><span>Porth y Gymuned</span></a></li><li id="n-cafe" class="mw-list-item"><a href="/wiki/Wicipedia:Y_Caffi"><span>Y Caffi</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Categori:Materion_cyfoes" title="Gwybodaeth yn gysylltiedig â materion cyfoes"><span>Materion cyfoes</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Arbennig:RecentChanges" title="Rhestr y newidiadau diweddar ar y wici. [r]" accesskey="r"><span>Newidiadau diweddar</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Arbennig:Random" title="Llwytho tudalen ar hap [x]" accesskey="x"><span>Erthygl ar hap</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Wicipedia:Cymorth" title="Tudalennau cymorth"><span>Cymorth</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Hafan" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wicipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-cy.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-cy.svg" width="120" height="13" style="width: 7.5em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Arbennig:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Chwilio Wicipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Chwilio</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Chwilio Wicipedia" aria-label="Chwilio Wicipedia" autocapitalize="sentences" title="Chwilio Wicipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Arbennig:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Chwilio</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Offer personol"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Gwedd"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Newidiwch ymddangosiad maint ffont, lled a lliw y dudalen" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Gwedd" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Gwedd</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_cy.wikipedia.org&uselang=cy" class=""><span>Rhoi</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Arbennig:CreateAccount&returnto=Cwmwlws" title="Rydym yn argymell eich bod yn creu cyfri ac yn menwgofnodi. Fodd bynnag, dydy hyn ddim yn orfodol" class=""><span>Creu cyfrif</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Arbennig:UserLogin&returnto=Cwmwlws" title="Fe'ch anogir i fewngofnodi, er nad oes rhaid gwneud. [o]" accesskey="o" class=""><span>Mewngofnodi</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Rhagor o opsiynau" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Offer personol" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Offer personol</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Dewislen defnyddiwr" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_cy.wikipedia.org&uselang=cy"><span>Rhoi</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Arbennig:CreateAccount&returnto=Cwmwlws" title="Rydym yn argymell eich bod yn creu cyfri ac yn menwgofnodi. Fodd bynnag, dydy hyn ddim yn orfodol"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Creu cyfrif</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Arbennig:UserLogin&returnto=Cwmwlws" title="Fe'ch anogir i fewngofnodi, er nad oes rhaid gwneud. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Mewngofnodi</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Tudalennau ar gyfer golygyddion allgofnodedig <a href="/wiki/Cymorth:Cyflwyniad" aria-label="Dysgu mwy am olygu"><span>dysgu mwy</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Arbennig:MyContributions" title="Rhestr golygiadau o'r cyfeiriad IP hwn [y]" accesskey="y"><span>Cyfraniadau</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Arbennig:MyTalk" title="Sgwrs ynglŷn â golygiadau o'r cyfeiriad IP hwn [n]" accesskey="n"><span>Sgwrs</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Safle"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Cynnwys" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Cynnwys</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">cuddio</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Y dechrau</div> </a> </li> <li id="toc-Cefndir" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cefndir"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Cefndir</span> </div> </a> <ul id="toc-Cefndir-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Enwau_eraill" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Enwau_eraill"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Enwau eraill</span> </div> </a> <ul id="toc-Enwau_eraill-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Rhywogaeth" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Rhywogaeth"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Rhywogaeth</span> </div> </a> <button aria-controls="toc-Rhywogaeth-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toglo is-adran Rhywogaeth</span> </button> <ul id="toc-Rhywogaeth-sublist" class="vector-toc-list"> <li id="toc-Cumulus_humilis" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cumulus_humilis"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Cumulus humilis</span> </div> </a> <ul id="toc-Cumulus_humilis-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cumulus_mediocris" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cumulus_mediocris"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Cumulus mediocris</span> </div> </a> <ul id="toc-Cumulus_mediocris-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cumulus_congestus" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cumulus_congestus"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Cumulus congestus</span> </div> </a> <ul id="toc-Cumulus_congestus-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cumulus_fractus" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Cumulus_fractus"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Cumulus fractus</span> </div> </a> <ul id="toc-Cumulus_fractus-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Cyfeiriadau" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cyfeiriadau"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Cyfeiriadau</span> </div> </a> <ul id="toc-Cyfeiriadau-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Cynnwys" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toglo'r tabl cynnwys" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toglo'r tabl cynnwys</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Cwmwlws</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ewch i erthygl mewn iaith arall. Ar gael mewn 63 iaith" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-63" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">63 iaith</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Cumuluswolk" title="Cumuluswolk - Affricaneg" lang="af" hreflang="af" data-title="Cumuluswolk" data-language-autonym="Afrikaans" data-language-local-name="Affricaneg" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B1%D9%83%D8%A7%D9%85_(%D8%B3%D8%AD%D8%A7%D8%A8)" title="ركام (سحاب) - Arabeg" lang="ar" hreflang="ar" data-title="ركام (سحاب)" data-language-autonym="العربية" data-language-local-name="Arabeg" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/C%C3%BAmulus" title="Cúmulus - Astwrianeg" lang="ast" hreflang="ast" data-title="Cúmulus" data-language-autonym="Asturianu" data-language-local-name="Astwrianeg" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9A%D1%83%D1%87%D0%B0%D0%B2%D1%8B%D1%8F_%D0%B2%D0%BE%D0%B1%D0%BB%D0%B0%D0%BA%D1%96" title="Кучавыя воблакі - Belarwseg" lang="be" hreflang="be" data-title="Кучавыя воблакі" data-language-autonym="Беларуская" data-language-local-name="Belarwseg" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9A%D1%83%D0%BF%D0%B5%D1%81%D1%82%D0%B8_%D0%BE%D0%B1%D0%BB%D0%B0%D1%86%D0%B8" title="Купести облаци - Bwlgareg" lang="bg" hreflang="bg" data-title="Купести облаци" data-language-autonym="Български" data-language-local-name="Bwlgareg" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/C%C3%BAmulus" title="Cúmulus - Catalaneg" lang="ca" hreflang="ca" data-title="Cúmulus" data-language-autonym="Català" data-language-local-name="Catalaneg" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-co mw-list-item"><a href="https://co.wikipedia.org/wiki/Cumulu" title="Cumulu - Corseg" lang="co" hreflang="co" data-title="Cumulu" data-language-autonym="Corsu" data-language-local-name="Corseg" class="interlanguage-link-target"><span>Corsu</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Cumulus" title="Cumulus - Tsieceg" lang="cs" hreflang="cs" data-title="Cumulus" data-language-autonym="Čeština" data-language-local-name="Tsieceg" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-csb mw-list-item"><a href="https://csb.wikipedia.org/wiki/Cumulus" title="Cumulus - Kashubian" lang="csb" hreflang="csb" data-title="Cumulus" data-language-autonym="Kaszëbsczi" data-language-local-name="Kashubian" class="interlanguage-link-target"><span>Kaszëbsczi</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Kumulus" title="Kumulus - Daneg" lang="da" hreflang="da" data-title="Kumulus" data-language-autonym="Dansk" data-language-local-name="Daneg" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Cumulus" title="Cumulus - Almaeneg" lang="de" hreflang="de" data-title="Cumulus" data-language-autonym="Deutsch" data-language-local-name="Almaeneg" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A3%CF%89%CF%81%CE%B5%CE%AF%CF%84%CE%B7%CF%82" title="Σωρείτης - Groeg" lang="el" hreflang="el" data-title="Σωρείτης" data-language-autonym="Ελληνικά" data-language-local-name="Groeg" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q17437798 badge-goodarticle mw-list-item" title="erthygl dda"><a href="https://en.wikipedia.org/wiki/Cumulus_cloud" title="Cumulus cloud - Saesneg" lang="en" hreflang="en" data-title="Cumulus cloud" data-language-autonym="English" data-language-local-name="Saesneg" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Kumuluso" title="Kumuluso - Esperanto" lang="eo" hreflang="eo" data-title="Kumuluso" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/C%C3%BAmulus" title="Cúmulus - Sbaeneg" lang="es" hreflang="es" data-title="Cúmulus" data-language-autonym="Español" data-language-local-name="Sbaeneg" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/R%C3%BCnkpilved" title="Rünkpilved - Estoneg" lang="et" hreflang="et" data-title="Rünkpilved" data-language-autonym="Eesti" data-language-local-name="Estoneg" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Kumulu" title="Kumulu - Basgeg" lang="eu" hreflang="eu" data-title="Kumulu" data-language-autonym="Euskara" data-language-local-name="Basgeg" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%D8%A8%D8%B1_%DA%A9%D9%88%D9%85%D9%87%E2%80%8C%D8%A7%DB%8C" title="ابر کومه‌ای - Perseg" lang="fa" hreflang="fa" data-title="ابر کومه‌ای" data-language-autonym="فارسی" data-language-local-name="Perseg" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Kumpupilvi" title="Kumpupilvi - Ffinneg" lang="fi" hreflang="fi" data-title="Kumpupilvi" data-language-autonym="Suomi" data-language-local-name="Ffinneg" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Cumulus" title="Cumulus - Ffrangeg" lang="fr" hreflang="fr" data-title="Cumulus" data-language-autonym="Français" data-language-local-name="Ffrangeg" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Cumalas" title="Cumalas - Gwyddeleg" lang="ga" hreflang="ga" data-title="Cumalas" data-language-autonym="Gaeilge" data-language-local-name="Gwyddeleg" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Cumulus" title="Cumulus - Galisieg" lang="gl" hreflang="gl" data-title="Cumulus" data-language-autonym="Galego" data-language-local-name="Galisieg" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A7%D7%95%D7%9E%D7%95%D7%9C%D7%95%D7%A1" title="קומולוס - Hebraeg" lang="he" hreflang="he" data-title="קומולוס" data-language-autonym="עברית" data-language-local-name="Hebraeg" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%95%E0%A4%AA%E0%A4%BE%E0%A4%B8%E0%A5%80_%E0%A4%AC%E0%A4%BE%E0%A4%A6%E0%A4%B2" title="कपासी बादल - Hindi" lang="hi" hreflang="hi" data-title="कपासी बादल" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Kumulus" title="Kumulus - Croateg" lang="hr" hreflang="hr" data-title="Kumulus" data-language-autonym="Hrvatski" data-language-local-name="Croateg" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Gomolyfelh%C5%91" title="Gomolyfelhő - Hwngareg" lang="hu" hreflang="hu" data-title="Gomolyfelhő" data-language-autonym="Magyar" data-language-local-name="Hwngareg" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%BF%D5%B8%D6%82%D5%B5%D5%BF%D5%A1%D5%B5%D5%AB%D5%B6_%D5%A1%D5%B4%D5%BA%D5%A5%D6%80" title="Կույտային ամպեր - Armeneg" lang="hy" hreflang="hy" data-title="Կույտային ամպեր" data-language-autonym="Հայերեն" data-language-local-name="Armeneg" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Awan_kumulus" title="Awan kumulus - Indoneseg" lang="id" hreflang="id" data-title="Awan kumulus" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indoneseg" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Kumuluso" title="Kumuluso - Ido" lang="io" hreflang="io" data-title="Kumuluso" data-language-autonym="Ido" data-language-local-name="Ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Cumulo_(nube)" title="Cumulo (nube) - Eidaleg" lang="it" hreflang="it" data-title="Cumulo (nube)" data-language-autonym="Italiano" data-language-local-name="Eidaleg" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E7%A9%8D%E9%9B%B2" title="積雲 - Japaneeg" lang="ja" hreflang="ja" data-title="積雲" data-language-autonym="日本語" data-language-local-name="Japaneeg" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A0%81%EC%9A%B4" title="적운 - Coreeg" lang="ko" hreflang="ko" data-title="적운" data-language-autonym="한국어" data-language-local-name="Coreeg" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Cumul" title="Cumul - Lombardeg" lang="lmo" hreflang="lmo" data-title="Cumul" data-language-autonym="Lombard" data-language-local-name="Lombardeg" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Kamuoliniai_debesys" title="Kamuoliniai debesys - Lithwaneg" lang="lt" hreflang="lt" data-title="Kamuoliniai debesys" data-language-autonym="Lietuvių" data-language-local-name="Lithwaneg" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Gubum%C4%81ko%C5%86i" title="Gubumākoņi - Latfieg" lang="lv" hreflang="lv" data-title="Gubumākoņi" data-language-autonym="Latviešu" data-language-local-name="Latfieg" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Cumulus" title="Cumulus - Malagaseg" lang="mg" hreflang="mg" data-title="Cumulus" data-language-autonym="Malagasy" data-language-local-name="Malagaseg" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9A%D1%83%D0%BC%D1%83%D0%BB%D1%83%D1%81" title="Кумулус - Macedoneg" lang="mk" hreflang="mk" data-title="Кумулус" data-language-autonym="Македонски" data-language-local-name="Macedoneg" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Awan_kumulus" title="Awan kumulus - Maleieg" lang="ms" hreflang="ms" data-title="Awan kumulus" data-language-autonym="Bahasa Melayu" data-language-local-name="Maleieg" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Cumulus" title="Cumulus - Iseldireg" lang="nl" hreflang="nl" data-title="Cumulus" data-language-autonym="Nederlands" data-language-local-name="Iseldireg" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Cumulus" title="Cumulus - Norwyeg Nynorsk" lang="nn" hreflang="nn" data-title="Cumulus" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwyeg Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Cumulus" title="Cumulus - Norwyeg Bokmål" lang="nb" hreflang="nb" data-title="Cumulus" data-language-autonym="Norsk bokmål" data-language-local-name="Norwyeg Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Cumulus" title="Cumulus - Ocsitaneg" lang="oc" hreflang="oc" data-title="Cumulus" data-language-autonym="Occitan" data-language-local-name="Ocsitaneg" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Cumulus" title="Cumulus - Pwyleg" lang="pl" hreflang="pl" data-title="Cumulus" data-language-autonym="Polski" data-language-local-name="Pwyleg" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt badge-Q17437798 badge-goodarticle mw-list-item" title="erthygl dda"><a href="https://pt.wikipedia.org/wiki/Cumulus" title="Cumulus - Portiwgaleg" lang="pt" hreflang="pt" data-title="Cumulus" data-language-autonym="Português" data-language-local-name="Portiwgaleg" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Cumulus" title="Cumulus - Rwmaneg" lang="ro" hreflang="ro" data-title="Cumulus" data-language-autonym="Română" data-language-local-name="Rwmaneg" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D1%83%D1%87%D0%B5%D0%B2%D1%8B%D0%B5_%D0%BE%D0%B1%D0%BB%D0%B0%D0%BA%D0%B0" title="Кучевые облака - Rwseg" lang="ru" hreflang="ru" data-title="Кучевые облака" data-language-autonym="Русский" data-language-local-name="Rwseg" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Cumulus_clood" title="Cumulus clood - Sgoteg" lang="sco" hreflang="sco" data-title="Cumulus clood" data-language-autonym="Scots" data-language-local-name="Sgoteg" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Kumulus" title="Kumulus - Serbo-Croateg" lang="sh" hreflang="sh" data-title="Kumulus" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croateg" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Cumulus_cloud" title="Cumulus cloud - Simple English" lang="en-simple" hreflang="en-simple" data-title="Cumulus cloud" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Kumulus" title="Kumulus - Slofaceg" lang="sk" hreflang="sk" data-title="Kumulus" data-language-autonym="Slovenčina" data-language-local-name="Slofaceg" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Kumulus" title="Kumulus - Slofeneg" lang="sl" hreflang="sl" data-title="Kumulus" data-language-autonym="Slovenščina" data-language-local-name="Slofeneg" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9A%D1%83%D0%BC%D1%83%D0%BB%D1%83%D1%81" title="Кумулус - Serbeg" lang="sr" hreflang="sr" data-title="Кумулус" data-language-autonym="Српски / srpski" data-language-local-name="Serbeg" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Cumulus" title="Cumulus - Swedeg" lang="sv" hreflang="sv" data-title="Cumulus" data-language-autonym="Svenska" data-language-local-name="Swedeg" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%A4%E0%AE%BF%E0%AE%B0%E0%AE%B3%E0%AF%8D_%E0%AE%AE%E0%AF%87%E0%AE%95%E0%AE%AE%E0%AF%8D" title="திரள் மேகம் - Tamileg" lang="ta" hreflang="ta" data-title="திரள் மேகம்" data-language-autonym="தமிழ்" data-language-local-name="Tamileg" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%B4%E0%B8%A7%E0%B8%A1%E0%B8%B9%E0%B8%A5%E0%B8%B1%E0%B8%AA" title="คิวมูลัส - Thai" lang="th" hreflang="th" data-title="คิวมูลัส" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/K%C3%BCm%C3%BCl%C3%BCs" title="Kümülüs - Tyrceg" lang="tr" hreflang="tr" data-title="Kümülüs" data-language-autonym="Türkçe" data-language-local-name="Tyrceg" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9A%D1%83%D0%BF%D1%87%D0%B0%D1%81%D1%82%D1%96_%D1%85%D0%BC%D0%B0%D1%80%D0%B8" title="Купчасті хмари - Wcreineg" lang="uk" hreflang="uk" data-title="Купчасті хмари" data-language-autonym="Українська" data-language-local-name="Wcreineg" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/M%C3%A2y_t%C3%ADch" title="Mây tích - Fietnameg" lang="vi" hreflang="vi" data-title="Mây tích" data-language-autonym="Tiếng Việt" data-language-local-name="Fietnameg" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Cumulus" title="Cumulus - Winarayeg" lang="war" hreflang="war" data-title="Cumulus" data-language-autonym="Winaray" data-language-local-name="Winarayeg" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%A7%AF%E4%BA%91" title="积云 - Wu Tsieineaidd" lang="wuu" hreflang="wuu" data-title="积云" data-language-autonym="吴语" data-language-local-name="Wu Tsieineaidd" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%A7%AF%E4%BA%91" title="积云 - Tsieinëeg" lang="zh" hreflang="zh" data-title="积云" data-language-autonym="中文" data-language-local-name="Tsieinëeg" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%A9%8D%E9%9B%B2" title="積雲 - Cantoneeg" lang="yue" hreflang="yue" data-title="積雲" data-language-autonym="粵語" data-language-local-name="Cantoneeg" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zu mw-list-item"><a href="https://zu.wikipedia.org/wiki/Amafufu" title="Amafufu - Swlw" lang="zu" hreflang="zu" data-title="Amafufu" data-language-autonym="IsiZulu" data-language-local-name="Swlw" class="interlanguage-link-target"><span>IsiZulu</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14189#sitelinks-wikipedia" title="Golygu dolenni rhyngwici" class="wbc-editpage">Golygu dolenni</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Parthau"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Cwmwlws" title="Gweld y dudalen bwnc [c]" accesskey="c"><span>Erthygl</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Sgwrs:Cwmwlws&action=edit&redlink=1" rel="discussion" class="new" title="Sgwrsio am y dudalen (dim tudalen ar gael) [t]" accesskey="t"><span>Sgwrs</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Newid amrywiad iaith" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Cymraeg</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Golygon"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Cwmwlws"><span>Darllen</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Cwmwlws&veaction=edit" title="Golygu'r dudalen hon [v]" accesskey="v"><span>Golygu</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Cwmwlws&action=edit" title="Golygu cod ffynhonnell y dudalen hon [e]" accesskey="e"><span>Golygu cod</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Cwmwlws&action=history" title="Fersiynau cynt o'r dudalen hon. [h]" accesskey="h"><span>Gweld hanes</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Offer tudalen"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Blwch offer" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Blwch offer</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Blwch offer</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">cuddio</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Rhagor o opsiynau" > <div class="vector-menu-heading"> Gweithredoedd </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Cwmwlws"><span>Darllen</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Cwmwlws&veaction=edit" title="Golygu'r dudalen hon [v]" accesskey="v"><span>Golygu</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Cwmwlws&action=edit" title="Golygu cod ffynhonnell y dudalen hon [e]" accesskey="e"><span>Golygu cod</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Cwmwlws&action=history"><span>Gweld hanes</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Cyffredinol </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Arbennig:WhatLinksHere/Cwmwlws" title="Rhestr o bob tudalen sy'n cysylltu â hon [j]" accesskey="j"><span>Beth sy'n cysylltu yma</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Arbennig:RecentChangesLinked/Cwmwlws" rel="nofollow" title="Newidiadau diweddar i dudalennau sydd yn cysylltu â hon [k]" accesskey="k"><span>Newidiadau perthnasol</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Arbennig:SpecialPages" title="Rhestr o'r holl dudalennau arbennig [q]" accesskey="q"><span>Tudalennau arbennig</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Cwmwlws&oldid=13059510" title="Dolen barhaol i'r fersiwn hwn y dudalen hon"><span>Dolen barhaol</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Cwmwlws&action=info" title="Mwy o wybodaeth am y dudalen hon"><span>Gwybodaeth am y dudalen</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Arbennig:CiteThisPage&page=Cwmwlws&id=13059510&wpFormIdentifier=titleform" title="Gwybodaeth ar sut i gyfeirio at y dudalen hon"><span>Cyfeirio at y dudalen hon</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Arbennig:UrlShortener&url=https%3A%2F%2Fcy.wikipedia.org%2Fwiki%2FCwmwlws"><span>Cael URL byr</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Arbennig:QrCode&url=https%3A%2F%2Fcy.wikipedia.org%2Fwiki%2FCwmwlws"><span>Lawrlwytho cod QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Argraffu / allforio </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Arbennig:Book&bookcmd=book_creator&referer=Cwmwlws"><span>Llunio llyfr</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Arbennig:DownloadAsPdf&page=Cwmwlws&action=show-download-screen"><span>Lawrlwytho fel PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Cwmwlws&printable=yes" title="Cynhyrchwch fersiwn o'r dudalen yn barod at ei hargraffu [p]" accesskey="p"><span>Fersiwn argraffu</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Mewn prosiectau eraill </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Cumulus" hreflang="en"><span>Comin Wikimedia</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14189" title="Cysylltu i eitem ystorfa gysylltiedig [g]" accesskey="g"><span>Eitem Wicidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Offer tudalen"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Gwedd"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Gwedd</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">cuddio</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Oddi ar Wicipedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="cy" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Delwedd:GoldenMedows.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/GoldenMedows.jpg/220px-GoldenMedows.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/GoldenMedows.jpg/330px-GoldenMedows.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/GoldenMedows.jpg/440px-GoldenMedows.jpg 2x" data-file-width="1225" data-file-height="919" /></a><figcaption>Cymylau 'meirch y ddrycin'</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><span><video id="mwe_player_0" poster="//upload.wikimedia.org/wikipedia/commons/thumb/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/220px--2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.jpg" controls="" preload="none" data-mw-tmh="" class="mw-file-element" width="220" height="124" data-durationhint="72" data-mwtitle="2014-05-29_17-19-06_timelapse-nuages-belfort.ogv" data-mwprovider="wikimediacommons" resource="/wiki/Delwedd:2014-05-29_17-19-06_timelapse-nuages-belfort.ogv"><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.480p.vp9.webm" type="video/webm; codecs="vp9, opus"" data-transcodekey="480p.vp9.webm" data-width="854" data-height="480" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.720p.vp9.webm" type="video/webm; codecs="vp9, opus"" data-transcodekey="720p.vp9.webm" data-width="1280" data-height="720" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.1080p.vp9.webm" type="video/webm; codecs="vp9, opus"" data-transcodekey="1080p.vp9.webm" data-width="1920" data-height="1080" /><source src="//upload.wikimedia.org/wikipedia/commons/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv" type="video/ogg; codecs="theora"" data-width="1920" data-height="1080" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.144p.mjpeg.mov" type="video/quicktime" data-transcodekey="144p.mjpeg.mov" data-width="256" data-height="144" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.240p.vp9.webm" type="video/webm; codecs="vp9, opus"" data-transcodekey="240p.vp9.webm" data-width="426" data-height="240" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.360p.webm" type="video/webm; codecs="vp8, vorbis"" data-transcodekey="360p.webm" data-width="640" data-height="360" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv/2014-05-29_17-19-06_timelapse-nuages-belfort.ogv.360p.vp9.webm" type="video/webm; codecs="vp9, opus"" data-transcodekey="360p.vp9.webm" data-width="640" data-height="360" /></video></span><figcaption>Fideo cyflym o <i>Cumulus humilis</i> yn ffurfio, yn carlamu ac yn diflannu, ar ddiwrnod poeth.</figcaption></figure> <p><a href="/wiki/Cwmwl" title="Cwmwl">Cwmwl</a> bychan gwyn gwlanog yw <b>cwmwlws</b> (neu'n wyddonol: <i><b>cwmulus</b></i>; ar lafar - <b>Seintiau tywydd braf</b>, <b>meirch y ddrycin</b> ayb) a welir ar gefndir o awyr las ac a elwir, yn addas iawn, yn 'gymylau tywydd braf'. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Cefndir">Cefndir</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=1" title="Golygu'r adran: Cefndir" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=1" title="Edit section's source code: Cefndir"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Anaml maent yn ffurfio'n uwch na 2,000 m (6,600 tr) o'r <a href="/wiki/Daear" class="mw-redirect" title="Daear">Ddaear</a>, oni bai eu bod yn y ffurf unionsyth <i>cumulus congestus</i>. O'r gair <a href="/wiki/Lladin" title="Lladin">Lladin</a> <i>cwmwlws</i> y daw'r gair Cymraeg '<a href="/wiki/Cwmwl" title="Cwmwl">cwmwl</a>'; ystyr <i>cumulo</i> ydy "tomen" yn yr iaith <a href="/wiki/Lladin" title="Lladin">Ladin</a>. </p><p>Mae'n bosib i gymylau cwmwlws ymddangos ar eu pennau eu hunain, mewn llinellau neu mewn clystyrau. Mae cymylau cwmwlws yn aml yn rhagflaenyddion i fathau eraill o gymylau, fel <i>cumulonimbus</i>, pan mae wedi ei ddylanwadu gan ffactorau tywydd fel <a href="/w/index.php?title=Ansefydlogrwydd_atmosfferig&action=edit&redlink=1" class="new" title="Ansefydlogrwydd atmosfferig (dim tudalen ar gael)">ansefydlogrwydd atmosfferig</a>, lleithder a graddiant. Mae cymylau cwmwlws yn rhan o gategori ehangach o gymylau ffurf cwmwlws, sy'n cynnwys <a href="/w/index.php?title=Cwmwl_stratocwmwlws&action=edit&redlink=1" class="new" title="Cwmwl stratocwmwlws (dim tudalen ar gael)">cymylau stratocwmwlws</a>, <a href="/w/index.php?title=Cwmwl_cwmwlonimbws&action=edit&redlink=1" class="new" title="Cwmwl cwmwlonimbws (dim tudalen ar gael)">cymylau cwmwlonimbws</a>, a <a href="/w/index.php?title=Cwmwl_siro-cwmwlws&action=edit&redlink=1" class="new" title="Cwmwl siro-cwmwlws (dim tudalen ar gael)">chymylau siro-cwmwlws</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Enwau_eraill">Enwau eraill</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=2" title="Golygu'r adran: Enwau eraill" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=2" title="Edit section's source code: Enwau eraill"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Enwau eraill arnynt yw 'cymylau defaid' am eu bod yn weddol grwn a gwasgaredig – yn debyg i braidd yn pori'r llechweddau. Oherwydd eu diniweidrwydd, mae'n debyg, cawsant eu cyffelybu yng <a href="/wiki/Gwynedd" title="Gwynedd">Ngwynedd</a> â'r <a href="/wiki/Seintiau" class="mw-redirect" title="Seintiau">Seintiau</a>: 'Seintiau tywydd braf' dros <a href="/wiki/Ynys_M%C3%B4n" title="Ynys Môn">Ynys Môn</a> (o <a href="/wiki/Waunfawr" title="Waunfawr">Waunfawr</a>) a 'Seintiau <a href="/wiki/Aberdyfi" title="Aberdyfi">Aberdyfi</a>' dros Fae <a href="/wiki/Ceredigion" title="Ceredigion">Ceredigion</a> (o <a href="/wiki/Cricieth" title="Cricieth">Gricieth</a>). Ond hawdd iawn y gall y diniwed newid ei natur! </p><p>Pan gyfyd gwyntoedd stormus o'r de orllewin â'r cymylau bychain yn carlamu ar draws yr awyr o'r cyfeiriad hwnnw fe'u gelwir yn 'feirch y ddrycin' a 'merlod Hafnant' yn ardal <a href="/wiki/Ysbyty_Ifan" title="Ysbyty Ifan">Ysbyty Ifan</a>, sy'n gyfeiriad at Fynydd Hafnant ym mhen ucha'r cwm. Os ydynt yn cynyddu ac ymledu gallant fod yn un o'r arwyddion cyntaf bod glaw ar ei ffordd. Enw arnynt yn ardal y <a href="/wiki/Bala" title="Bala">Bala</a> pan maent yn dechrau ymddangos yw 'cymylau pennau cŵn'. Os parhânt i gynyddu a phentyrru deuant i edrych fel blodfresych mawr bolddu ac ymhen ychydig oriau yn gymylau terfysg. Ceir dywediad am hynny o ogledd <a href="/wiki/Ceredigion" title="Ceredigion">Ceredigion</a>: 'Pen ci bore o wanwyn, uchel gynffon buwch cyn nos.' Yr 'uchel gynffon buwch' yn cyfeirio at y gwartheg yn 'stodi', neu'n rhedeg â'u cynffonnau'n syth i'r awyr, fel y gwnânt ar dywydd trymaidd cyn storm o felt a thrannau yn yr haf. </p><p>Pan fydd yr awyr y tu cefn neu uwchben y Cumulus bychain yn dechrau llenwi â haenau o gymylau llwydion, bydd cysgod y cymylau uchel yn troi'r rhai isel yn dywyll iawn. Disgrifir hynny yn yr enwau: 'cŵn duon <a href="/wiki/Dinbych" title="Dinbych">Dinbych</a>' (<a href="/wiki/Penmachno" title="Penmachno">Penmachno</a>) am gymylau bach duon ddeuant cyn storm, tra ym Môn ceir y disgrifiad: 'defaid duon dan do' am gymylau bychain yn symud o dan nenfwd llwyd yr haenau uwch. </p> <div class="mw-heading mw-heading2"><h2 id="Rhywogaeth">Rhywogaeth</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=3" title="Golygu'r adran: Rhywogaeth" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=3" title="Edit section's source code: Rhywogaeth"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Cumulus_humilis">Cumulus <a href="/w/index.php?title=Humilis&action=edit&redlink=1" class="new" title="Humilis (dim tudalen ar gael)">humilis</a></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=4" title="Golygu'r adran: Cumulus humilis" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=4" title="Edit section's source code: Cumulus humilis"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Bluesky.jpg" class="mw-file-description" title="Cumulus humilis"><img alt="Cumulus humilis" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Bluesky.jpg/78px-Bluesky.jpg" decoding="async" width="78" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Bluesky.jpg/117px-Bluesky.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f5/Bluesky.jpg/156px-Bluesky.jpg 2x" data-file-width="288" data-file-height="442" /></a></span></div> <div class="gallerytext"><i>Cumulus humilis</i></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Cumulus_humilis_sweden_2009.jpg" class="mw-file-description" title="Cumulus humilis"><img alt="Cumulus humilis" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/03/Cumulus_humilis_sweden_2009.jpg/120px-Cumulus_humilis_sweden_2009.jpg" decoding="async" width="120" height="54" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/03/Cumulus_humilis_sweden_2009.jpg/180px-Cumulus_humilis_sweden_2009.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/03/Cumulus_humilis_sweden_2009.jpg/240px-Cumulus_humilis_sweden_2009.jpg 2x" data-file-width="1500" data-file-height="669" /></a></span></div> <div class="gallerytext"><i>Cumulus humilis</i></div> </li> </ul> <div class="mw-heading mw-heading3"><h3 id="Cumulus_mediocris">Cumulus <a href="/w/index.php?title=Mediocris&action=edit&redlink=1" class="new" title="Mediocris (dim tudalen ar gael)">mediocris</a></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=5" title="Golygu'r adran: Cumulus mediocris" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=5" title="Edit section's source code: Cumulus mediocris"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:GoldenMedows.jpg" class="mw-file-description" title="Cumulus mediocris"><img alt="Cumulus mediocris" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/GoldenMedows.jpg/120px-GoldenMedows.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/GoldenMedows.jpg/180px-GoldenMedows.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/GoldenMedows.jpg/240px-GoldenMedows.jpg 2x" data-file-width="1225" data-file-height="919" /></a></span></div> <div class="gallerytext"><i>Cumulus mediocris</i></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Frayed_Cu_med_above_Oltschiburg.JPG" class="mw-file-description" title="Cumulus mediocris uwchben Oltschiburg (CH)"><img alt="Cumulus mediocris uwchben Oltschiburg (CH)" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Frayed_Cu_med_above_Oltschiburg.JPG/120px-Frayed_Cu_med_above_Oltschiburg.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Frayed_Cu_med_above_Oltschiburg.JPG/180px-Frayed_Cu_med_above_Oltschiburg.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Frayed_Cu_med_above_Oltschiburg.JPG/240px-Frayed_Cu_med_above_Oltschiburg.JPG 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><i>Cumulus mediocris</i> uwchben Oltschiburg (CH)</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Cumulusmediocrissweden.jpg" class="mw-file-description" title="Cumulus mediocris uwchben tref Linköping, Sweden"><img alt="Cumulus mediocris uwchben tref Linköping, Sweden" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/01/Cumulusmediocrissweden.jpg/120px-Cumulusmediocrissweden.jpg" decoding="async" width="120" height="85" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/01/Cumulusmediocrissweden.jpg/180px-Cumulusmediocrissweden.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/01/Cumulusmediocrissweden.jpg/240px-Cumulusmediocrissweden.jpg 2x" data-file-width="1200" data-file-height="852" /></a></span></div> <div class="gallerytext"><i>Cumulus mediocris</i> uwchben tref Linköping, Sweden</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:D%C3%BCnenkette_Juist.JPG" class="mw-file-description" title="Cumulus mediocris"><img alt="Cumulus mediocris" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/D%C3%BCnenkette_Juist.JPG/120px-D%C3%BCnenkette_Juist.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/D%C3%BCnenkette_Juist.JPG/180px-D%C3%BCnenkette_Juist.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/D%C3%BCnenkette_Juist.JPG/240px-D%C3%BCnenkette_Juist.JPG 2x" data-file-width="3456" data-file-height="2592" /></a></span></div> <div class="gallerytext"><i>Cumulus mediocris</i></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Wallis_Stellihorn_mg-k.jpg" class="mw-file-description" title="Cumulus mediocris uwchben Stellihorn, Wallis (CH)"><img alt="Cumulus mediocris uwchben Stellihorn, Wallis (CH)" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Wallis_Stellihorn_mg-k.jpg/120px-Wallis_Stellihorn_mg-k.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Wallis_Stellihorn_mg-k.jpg/180px-Wallis_Stellihorn_mg-k.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Wallis_Stellihorn_mg-k.jpg/240px-Wallis_Stellihorn_mg-k.jpg 2x" data-file-width="500" data-file-height="334" /></a></span></div> <div class="gallerytext"><i>Cumulus mediocris</i> uwchben Stellihorn, Wallis (CH)</div> </li> </ul> <div class="mw-heading mw-heading3"><h3 id="Cumulus_congestus">Cumulus <a href="/w/index.php?title=Congestus&action=edit&redlink=1" class="new" title="Congestus (dim tudalen ar gael)">congestus</a></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=6" title="Golygu'r adran: Cumulus congestus" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=6" title="Edit section's source code: Cumulus congestus"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Cu_congestus1.jpg" class="mw-file-description" title="Cumulus congestus"><img alt="Cumulus congestus" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Cu_congestus1.jpg/120px-Cu_congestus1.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Cu_congestus1.jpg/180px-Cu_congestus1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1f/Cu_congestus1.jpg/240px-Cu_congestus1.jpg 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><i>Cumulus congestus</i></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Cumulus_con_above_Brienzersee.JPG" class="mw-file-description" title="Cumulus congestus uwchben y Brienzersee"><img alt="Cumulus congestus uwchben y Brienzersee" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Cumulus_con_above_Brienzersee.JPG/120px-Cumulus_con_above_Brienzersee.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Cumulus_con_above_Brienzersee.JPG/180px-Cumulus_con_above_Brienzersee.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Cumulus_con_above_Brienzersee.JPG/240px-Cumulus_con_above_Brienzersee.JPG 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><i>Cumulus congestus</i> uwchben y Brienzersee</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Big_Cu_con_near_Brienzer_Rothorn.JPG" class="mw-file-description" title="Cumulus congestus uwchben Brienz"><img alt="Cumulus congestus uwchben Brienz" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Big_Cu_con_near_Brienzer_Rothorn.JPG/120px-Big_Cu_con_near_Brienzer_Rothorn.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Big_Cu_con_near_Brienzer_Rothorn.JPG/180px-Big_Cu_con_near_Brienzer_Rothorn.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Big_Cu_con_near_Brienzer_Rothorn.JPG/240px-Big_Cu_con_near_Brienzer_Rothorn.JPG 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><i>Cumulus congestus</i> uwchben Brienz</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Aufgetuermter_Cumulus.JPG" class="mw-file-description" title="Cumulus congestus"><img alt="Cumulus congestus" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Aufgetuermter_Cumulus.JPG/120px-Aufgetuermter_Cumulus.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Aufgetuermter_Cumulus.JPG/180px-Aufgetuermter_Cumulus.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/08/Aufgetuermter_Cumulus.JPG/240px-Aufgetuermter_Cumulus.JPG 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><i>Cumulus congestus</i></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Cumulus20_-_NOAA.jpg" class="mw-file-description" title="Dau Cumulus congestus"><img alt="Dau Cumulus congestus" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Cumulus20_-_NOAA.jpg/120px-Cumulus20_-_NOAA.jpg" decoding="async" width="120" height="83" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Cumulus20_-_NOAA.jpg/180px-Cumulus20_-_NOAA.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Cumulus20_-_NOAA.jpg/240px-Cumulus20_-_NOAA.jpg 2x" data-file-width="1780" data-file-height="1224" /></a></span></div> <div class="gallerytext">Dau <i>Cumulus congestus</i></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Cumulus9_-_NOAA.jpg" class="mw-file-description" title="Cumulus congestus yn gorchuddio'r haul"><img alt="Cumulus congestus yn gorchuddio'r haul" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/Cumulus9_-_NOAA.jpg/120px-Cumulus9_-_NOAA.jpg" decoding="async" width="120" height="79" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/Cumulus9_-_NOAA.jpg/180px-Cumulus9_-_NOAA.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/de/Cumulus9_-_NOAA.jpg/240px-Cumulus9_-_NOAA.jpg 2x" data-file-width="1728" data-file-height="1136" /></a></span></div> <div class="gallerytext"><i>Cumulus congestus</i> yn gorchuddio'r haul</div> </li> </ul> <div class="mw-heading mw-heading3"><h3 id="Cumulus_fractus">Cumulus <a href="/w/index.php?title=Fractus&action=edit&redlink=1" class="new" title="Fractus (dim tudalen ar gael)">fractus</a></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=7" title="Golygu'r adran: Cumulus fractus" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=7" title="Edit section's source code: Cumulus fractus"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Cumulus14_-_NOAA.jpg" class="mw-file-description" title="Cumulus fractus"><img alt="Cumulus fractus" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Cumulus14_-_NOAA.jpg/120px-Cumulus14_-_NOAA.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Cumulus14_-_NOAA.jpg/180px-Cumulus14_-_NOAA.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Cumulus14_-_NOAA.jpg/240px-Cumulus14_-_NOAA.jpg 2x" data-file-width="1804" data-file-height="1200" /></a></span></div> <div class="gallerytext">Cumulus fractus</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Fleecyclouds.JPG" class="mw-file-description" title="Cumulus fractus"><img alt="Cumulus fractus" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Fleecyclouds.JPG/120px-Fleecyclouds.JPG" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/10/Fleecyclouds.JPG/180px-Fleecyclouds.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/10/Fleecyclouds.JPG/240px-Fleecyclouds.JPG 2x" data-file-width="2048" data-file-height="1536" /></a></span></div> <div class="gallerytext"><i>Cumulus fractus</i></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/Delwedd:Sky_over_Tamsui_after_sunset.jpg" class="mw-file-description" title="'Cumulus fractus"><img alt="'Cumulus fractus" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Sky_over_Tamsui_after_sunset.jpg/120px-Sky_over_Tamsui_after_sunset.jpg" decoding="async" width="120" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Sky_over_Tamsui_after_sunset.jpg/180px-Sky_over_Tamsui_after_sunset.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Sky_over_Tamsui_after_sunset.jpg/240px-Sky_over_Tamsui_after_sunset.jpg 2x" data-file-width="2560" data-file-height="1920" /></a></span></div> <div class="gallerytext"> 'Cumulus fractus<i></i></div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="Cyfeiriadau">Cyfeiriadau</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cwmwlws&veaction=edit&section=8" title="Golygu'r adran: Cyfeiriadau" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cwmwlws&action=edit&section=8" title="Edit section's source code: Cyfeiriadau"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170512141550/http://www-das.uwyo.edu/~geerts/cwx/notes/chap08/cumuliform.html">"Cumuliform clouds: some examples"</a>. Archifwyd o'r <a rel="nofollow" class="external text" href="http://www-das.uwyo.edu/~geerts/cwx/notes/chap08/cumuliform.html">gwreiddiol</a> ar 2017-05-12<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">8 Tachwedd</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Cumuliform+clouds%3A+some+examples&rft_id=http%3A%2F%2Fwww-das.uwyo.edu%2F~geerts%2Fcwx%2Fnotes%2Fchap08%2Fcumuliform.html&rfr_id=info%3Asid%2Fcy.wikipedia.org%3ACwmwlws" class="Z3988"></span><style data-mw-deduplicate="TemplateStyles:r8312344">.mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}</style></span> </li> </ol></div></div> <div style="clear: both; background-color: #f9f9f9; border: 1px solid #aaa; padding: 5px; padding-left: 10px; text-align: left; font-size: 90%; margin-top: 1em;"><span typeof="mw:File"><a href="/wiki/Delwedd:Open_Access_logo_PLoS_transparent.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/77/Open_Access_logo_PLoS_transparent.svg/12px-Open_Access_logo_PLoS_transparent.svg.png" decoding="async" width="12" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/77/Open_Access_logo_PLoS_transparent.svg/18px-Open_Access_logo_PLoS_transparent.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/77/Open_Access_logo_PLoS_transparent.svg/24px-Open_Access_logo_PLoS_transparent.svg.png 2x" data-file-width="640" data-file-height="1000" /></a></span> <i>Mae'r erthygl hon yn cynnwys testun a sgwennwyd ac a briodolir i <a href="/wiki/Twm_Elias" title="Twm Elias">Twm Elias</a> ac a uwchlwythwyd ar Wicipedia gan <a href="/wiki/Defnyddiwr:Twm_Elias" title="Defnyddiwr:Twm Elias">Defnyddiwr:Twm Elias</a>. 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