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cdx-search-input__end-button">Cerca</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Eines personals"> <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="Aparença"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <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="Aparença" > <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">Aparença</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_ca.wikipedia.org&uselang=ca" class=""><span>Donatius</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=Especial:Crea_compte&returnto=Cumulonimbus+velum" title="Us animem a crear un compte i iniciar una sessió, encara que no és obligatori" class=""><span>Crea un compte</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=Especial:Registre_i_entrada&returnto=Cumulonimbus+velum" title="Us animem a registrar-vos, però no és obligatori [o]" accesskey="o" class=""><span>Inicia la sessió</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right 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<div class="vector-menu-heading"> Pàgines per a editors no registrats <a href="/wiki/Ajuda:Introducci%C3%B3" aria-label="Vegeu més informació sobre l'edició"><span>més informació</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/Especial:Contribucions_pr%C3%B2pies" title="Una llista de les modificacions fetes des d'aquesta adreça IP [y]" accesskey="y"><span>Contribucions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Especial:Discussi%C3%B3_personal" title="Discussió sobre les edicions per aquesta adreça ip. [n]" accesskey="n"><span>Discussió per aquest IP</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="Lloc"> <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="Contingut" 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">Contingut</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">amaga</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">Inici</div> </a> </li> <li id="toc-Referències" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referències"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Referències</span> </div> </a> <ul id="toc-Referències-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="Contingut" 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="Commuta la taula de continguts." > <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">Commuta la taula de continguts.</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">Cumulonimbus velum</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="Vés a un article en una altra llengua. Disponible en 12 llengües" > <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-12" 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">12 llengües</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Velum_(Wolke)" title="Velum (Wolke) - alemany" lang="de" hreflang="de" data-title="Velum (Wolke)" data-language-autonym="Deutsch" data-language-local-name="alemany" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Cumulonimbus_velum" title="Cumulonimbus velum - anglès" lang="en" hreflang="en" data-title="Cumulonimbus velum" data-language-autonym="English" data-language-local-name="anglès" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Cumulonimbus_velum" title="Cumulonimbus velum - espanyol" lang="es" hreflang="es" data-title="Cumulonimbus velum" data-language-autonym="Español" data-language-local-name="espanyol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%A9%D9%88%D9%85%D9%87%E2%80%8C%D8%A7%DB%8C%E2%80%8C%D8%A8%D8%A7%D8%B1%D8%A7%DB%8C_%D8%A8%D8%A7%D8%AF%D8%A8%D8%A7%D9%86%DB%8C" title="کومه‌ای‌بارای بادبانی - persa" lang="fa" hreflang="fa" data-title="کومه‌ای‌بارای بادبانی" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Velum_(nuage)" title="Velum (nuage) - francès" lang="fr" hreflang="fr" data-title="Velum (nuage)" data-language-autonym="Français" data-language-local-name="francès" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Velum" title="Velum - gallec" lang="gl" hreflang="gl" data-title="Velum" data-language-autonym="Galego" data-language-local-name="gallec" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Kumulonimbus_velum" title="Kumulonimbus velum - indonesi" lang="id" hreflang="id" data-title="Kumulonimbus velum" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesi" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Velum_(nubi)" title="Velum (nubi) - italià" lang="it" hreflang="it" data-title="Velum (nubi)" data-language-autonym="Italiano" data-language-local-name="italià" 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/%E3%83%99%E3%83%BC%E3%83%AB%E9%9B%B2" title="ベール雲 - japonès" lang="ja" hreflang="ja" data-title="ベール雲" data-language-autonym="日本語" data-language-local-name="japonès" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Velum_(forma_chmury)" title="Velum (forma chmury) - polonès" lang="pl" hreflang="pl" data-title="Velum (forma chmury)" data-language-autonym="Polski" data-language-local-name="polonès" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Cumulonimbus_velum" title="Cumulonimbus velum - portuguès" lang="pt" hreflang="pt" data-title="Cumulonimbus velum" data-language-autonym="Português" data-language-local-name="portuguès" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Velum_(moln)" title="Velum (moln) - suec" lang="sv" hreflang="sv" data-title="Velum (moln)" data-language-autonym="Svenska" data-language-local-name="suec" class="interlanguage-link-target"><span>Svenska</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/Q3080358#sitelinks-wikipedia" title="Modifica enllaços interlingües" class="wbc-editpage">Modifica els enllaços</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="Espais de noms"> <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/Cumulonimbus_velum" title="Vegeu el contingut de la pàgina [c]" accesskey="c"><span>Pàgina</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussi%C3%B3:Cumulonimbus_velum" rel="discussion" title="Discussió sobre el contingut d'aquesta pàgina [t]" accesskey="t"><span>Discussió</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" 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href="/wiki/Cumulonimbus_velum"><span>Mostra</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Cumulonimbus_velum&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Cumulonimbus_velum&action=history" title="Versions antigues d'aquesta pàgina [h]" accesskey="h"><span>Mostra l'historial</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Eines de la pàgina"> <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="Eines" > <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">Eines</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">Eines</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">amaga</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Més opcions" > <div class="vector-menu-heading"> Accions </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/Cumulonimbus_velum"><span>Mostra</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Cumulonimbus_velum&action=edit" title="Modifica el codi font d'aquesta pàgina [e]" accesskey="e"><span>Modifica</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Cumulonimbus_velum&action=history"><span>Mostra l'historial</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:Enlla%C3%A7os/Cumulonimbus_velum" title="Una llista de totes les pàgines wiki que enllacen amb aquesta [j]" accesskey="j"><span>Què hi enllaça</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Seguiment/Cumulonimbus_velum" rel="nofollow" title="Canvis recents a pàgines enllaçades des d'aquesta pàgina [k]" accesskey="k"><span>Canvis relacionats</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Especial:P%C3%A0gines_especials" title="Llista totes les pàgines especials [q]" accesskey="q"><span>Pàgines especials</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Cumulonimbus_velum&oldid=30435275" title="Enllaç permanent a aquesta revisió de la pàgina"><span>Enllaç permanent</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Cumulonimbus_velum&action=info" title="Més informació sobre aquesta pàgina"><span>Informació de la pàgina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Citau&page=Cumulonimbus_velum&id=30435275&wpFormIdentifier=titleform" title="Informació sobre com citar aquesta pàgina"><span>Citau aquest article</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FCumulonimbus_velum"><span>Obtén una URL abreujada</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&url=https%3A%2F%2Fca.wikipedia.org%2Fwiki%2FCumulonimbus_velum"><span>Descarrega el codi 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"> Imprimeix/exporta </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=Especial:Llibre&bookcmd=book_creator&referer=Cumulonimbus+velum"><span>Crea un llibre</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&page=Cumulonimbus_velum&action=show-download-screen"><span>Baixa com a PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Cumulonimbus_velum&printable=yes" title="Versió per a impressió d'aquesta pàgina [p]" accesskey="p"><span>Versió per a impressora</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"> En altres projectes </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/Category:Velum_clouds" hreflang="en"><span>Commons</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/Q3080358" title="Enllaç a l'element del repositori de dades connectat [g]" accesskey="g"><span>Element a Wikidata</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="Eines de la pàgina"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aparença"> <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">Aparença</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mou a la barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">amaga</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">De la Viquipèdia, l'enciclopèdia lliure</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(S'ha redirigit des de: <a href="/w/index.php?title=Velum&redirect=no" class="mw-redirect" title="Velum">Velum</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="ca" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxer:Cumulonimbus_Velum_cloud_top.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Cumulonimbus_Velum_cloud_top.jpg/220px-Cumulonimbus_Velum_cloud_top.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Cumulonimbus_Velum_cloud_top.jpg/330px-Cumulonimbus_Velum_cloud_top.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/08/Cumulonimbus_Velum_cloud_top.jpg/440px-Cumulonimbus_Velum_cloud_top.jpg 2x" data-file-width="2560" data-file-height="1920" /></a><figcaption><i>Velum</i> (el vel llis blanc) que envolta la part superior d'un núvol <a href="/wiki/Cumulonimbus" title="Cumulonimbus">cumulonimbus</a></figcaption></figure> <p>El <i><b>velum</b></i> (del <a href="/wiki/Llat%C3%AD" title="Llatí">llatí</a>, «<a href="/wiki/Vel" title="Vel">vel</a>») és un vel annex de <a href="/wiki/N%C3%BAvol" title="Núvol">núvol</a> amb una gran extensió horitzontal, situat lleugerament per sobre de les cims d'un o més núvols <a href="/wiki/C%C3%BAmulus" title="Cúmulus">cumuliformes</a> o adjacents a les seves regions superiors. Es forma quan el núvol convectiu arriba a una capa d'aire estable i s'estén. Més tard, aquest núvol convectiu que és principalment un <a href="/wiki/C%C3%BAmulus" title="Cúmulus">cúmul</a> o un <a href="/wiki/Cumulonimbus" title="Cumulonimbus">cumulonimbus</a> perforarà el vel. En general, el vel s'assembla a un <a href="/wiki/Altoestrat" title="Altoestrat">altostratus</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><p>No s'ha de confondre amb el <i><a href="/wiki/P%C3%ADleu_(n%C3%BAvol)" title="Píleu (núvol)">pileus</a></i> que té forma de gorra (o un <a href="/wiki/N%C3%BAvol_lenticular" title="Núvol lenticular">altocumulus lenticularis</a>).<sup id="cite_ref-Pinney_2-0" class="reference"><a href="#cite_note-Pinney-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>Aquest núvol pot persistir fins i tot després de la dissipació del núvol principal si les condicions són favorables i transformar-se en <a href="/wiki/Altoestrat" title="Altoestrat">altostratus</a>/<a href="/wiki/Altoc%C3%BAmul" title="Altocúmul">altocúmuls</a> quan es troba a l'altitud mitjana de l'<a href="/wiki/Atmosfera" title="Atmosfera">atmosfera</a> i en <a href="/wiki/Cirroestrat" title="Cirroestrat">cirrostratus</a>/<a href="/wiki/Cirroc%C3%BAmulus" title="Cirrocúmulus">cirrocúmuls</a> si és més alt.<sup id="cite_ref-Pinney_2-1" class="reference"><a href="#cite_note-Pinney-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p><b>Cumulonimbus velum</b> (<i><b>Cb vel</b></i>) (del <a href="/wiki/Llat%C3%AD" title="Llatí">llatí</a> <i>cumulonimbus</i>, «columna-pluja» + <i>velum</i>, «vel») és un <a href="/wiki/N%C3%BAvol" title="Núvol">núvol</a> <a href="/wiki/Cumulonimbus" title="Cumulonimbus">cumulonimbus</a> amb un vel de núvol accessori embolicat al voltant de la seva zona mitjana, que representa una àrea d'aire humit estable creada com a resultat del creixement del cumulonimbus progenitor.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> El núvol <i>cumulonimbus velum</i> sembla fosc en comparació amb el seu núvol progenitor, i pot persistir fins i tot després que el cumulonimbus s'hagi desintegrat. El vel és molt rar, ja que les condicions necessàries per al desenvolupament són poc freqüents. </p> <div class="mw-heading mw-heading2"><h2 id="Referències"><span id="Refer.C3.A8ncies"></span>Referències</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cumulonimbus_velum&action=edit&section=1" title="Modifica la secció: Referències"><span>modifica</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r33663753">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:#f9f9f9;display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}.mw-parser-output .side-box-center{clear:both;margin:auto}}</style><div class="side-box metadata side-box-right plainlinks"> <div class="side-box-flex"> <div class="side-box-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">A <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/P%C3%A0gina_principal?uselang=ca">Wikimedia Commons</a></span> hi ha contingut multimèdia relatiu a: <i><b><a href="https://commons.wikimedia.org/wiki/Category:Velum_clouds" class="extiw" title="commons:Category:Velum clouds">Cumulonimbus velum</a></b></i></div></div> </div> <div class="reflist {{#if: | references-column-count references-column-count-{{{col}}}" 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"><span class="citation book" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20190412182055/https://library.wmo.int/pmb_ged/wmo_407_fr-v1.pdf"><i>Atlas international des nuages</i></a> (<style data-mw-deduplicate="TemplateStyles:r33780657">.mw-parser-output .linkformat{position:relative;font-family:sans-serif;font-size:0.85em;font-weight:bold;cursor:default;color:#808080;background-color:inherit}@media screen{html.skin-theme-clientpref-night .mw-parser-output .linkformat{background-color:inherit;color:#009400}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .linkformat{background-color:inherit;color:#009400}}</style><span class="linkformat" title="És PDF"><span typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/PDF_icon_bold.svg/14px-PDF_icon_bold.svg.png" decoding="async" width="14" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/PDF_icon_bold.svg/21px-PDF_icon_bold.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/53/PDF_icon_bold.svg/28px-PDF_icon_bold.svg.png 2x" data-file-width="512" data-file-height="585" /></span></span> PDF</span>) (en francès). I.  <a href="/wiki/Organitzaci%C3%B3_Meteorol%C3%B2gica_Mundial" title="Organització Meteorològica Mundial">Organització Meteorològica Mundial</a>, 1975.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Atlas+international+des+nuages&rft.date=1975&rft.pub=%5B%5BOrganitzaci%C3%B3+Meteorol%C3%B2gica+Mundial%5D%5D&rft_id=https%3A%2F%2Fweb.archive.org%2Fweb%2F20190412182055%2Fhttps%3A%2F%2Flibrary.wmo.int%2Fpmb_ged%2Fwmo_407_fr-v1.pdf"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-Pinney-2"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Pinney_2-0">2,0</a></sup> <sup><a href="#cite_ref-Pinney_2-1">2,1</a></sup></span> <span class="reference-text"><span class="citation book" style="font-style:normal" id="CITEREFPretor-Pinney2011"><a href="/w/index.php?title=Gavin_Pretor-Pinney&action=edit&redlink=1" class="new" title="Gavin Pretor-Pinney (encara no existeix)"><span style="font-variant: small-caps;">Pretor-Pinney</span>, Gavin</a>. <i>The Cloud Collector's Handbook</i> (en anglès).  <a href="/w/index.php?title=Chronicle_Books&action=edit&redlink=1" class="new" title="Chronicle Books (encara no existeix)">Chronicle Books</a>, 2011, p. 53. <span style="font-size:90%; white-space:nowrap;"><a href="/wiki/Especial:Fonts_bibliogr%C3%A0fiques/978-0-8118-7542-4" title="Especial:Fonts bibliogràfiques/978-0-8118-7542-4">ISBN 978-0-8118-7542-4</a></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Cloud+Collector%27s+Handbook&rft.aulast=Pretor-Pinney&rft.aufirst=Gavin&rft.date=2011&rft.pub=%5B%5BChronicle+Books%5D%5D&rft.pages=53&rft.isbn=978-0-8118-7542-4"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><span class="citation" style="font-style:normal">«<a rel="nofollow" class="external text" href="http://glossary.ametsoc.org/wiki/Velum">Velum</a>» (en anglès). <i>Meteorological glossary</i>.  <a href="/w/index.php?title=American_Meteorological_Society&action=edit&redlink=1" class="new" title="American Meteorological Society (encara no existeix)">American Meteorological Society</a>.</span></span> </li> </ol></div></div> <div role="navigation" class="navbox" aria-labelledby="Tipus_de_núvols_i_espècies_seleccionades,_característiques_addicionals_i_altres_hidrometeors_aerotransportats_-_Terminologia_llatina_de_l&#039;OMM" style="padding:3px"><table class="nowraplinks collapsible collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div class="plainlinks hlist navbar mini"><ul><li class="nv-view"><span typeof="mw:File"><a href="/wiki/Plantilla:N%C3%BAvols" title="Plantilla:Núvols"><img alt="Vegeu aquesta plantilla" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/18px-Commons-emblem-notice.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/27px-Commons-emblem-notice.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/28/Commons-emblem-notice.svg/36px-Commons-emblem-notice.svg.png 2x" data-file-width="48" data-file-height="48" /></a></span></li></ul></div><div id="Tipus_de_núvols_i_espècies_seleccionades,_característiques_addicionals_i_altres_hidrometeors_aerotransportats_-_Terminologia_llatina_de_l&#039;OMM" style="font-size:114%;margin:0 4em"><a href="/w/index.php?title=Classificaci%C3%B3_internacional_de_n%C3%BAvols&action=edit&redlink=1" class="new" title="Classificació internacional de núvols (encara no existeix)">Tipus</a> de <a href="/wiki/N%C3%BAvol" title="Núvol">núvols</a> i espècies seleccionades, característiques addicionals i altres hidrometeors aerotransportats - Terminologia llatina de l'<a href="/wiki/OMM" class="mw-redirect" title="OMM">OMM</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align: center;"><a href="/wiki/Mesosfera" title="Mesosfera">Mesosfèrics</a></th><td class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="80-85_km" scope="row" class="navbox-group" style="width:1%;width: 8%">80-85 km</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Núvols_Noctilucent_(NLC)i_mesosfèrics_polars" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/N%C3%BAvol_noctilucent" title="Núvol noctilucent">Núvols Noctilucent (NLC)<br />i mesosfèrics polars</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/N%C3%BAvol_noctilucent" title="Núvol noctilucent">Noctilucent</a></dd> <dd><a href="/w/index.php?title=N%C3%BAvol_mesosf%C3%A8ric_polar&action=edit&redlink=1" class="new" title="Núvol mesosfèric polar (encara no existeix)">Mesosfèric polar</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align: center;"><a href="/wiki/Estratosfera" title="Estratosfera">Estratosfèrics</a></th><td class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="15-30_km" scope="row" class="navbox-group" style="width:1%;width: 8%">15-30 km</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=N%C3%BAvol_estratosf%C3%A8ric_polar&action=edit&redlink=1" class="new" title="Núvol estratosfèric polar (encara no existeix)">Estratosfèric polar</a></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=N%C3%BAvol_estratosf%C3%A8ric_polar&action=edit&redlink=1" class="new" title="Núvol estratosfèric polar (encara no existeix)">Núvol estratosfèric polar</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/w/index.php?title=N%C3%BAvol_estratosf%C3%A8ric_polar&action=edit&redlink=1" class="new" title="Núvol estratosfèric polar (encara no existeix)">Àcid nítric i aigua estratosfèric polar</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=N%C3%BAvol_estratosf%C3%A8ric_polar&action=edit&redlink=1" class="new" title="Núvol estratosfèric polar (encara no existeix)">Àcid nítric i aigua estratosfèric polar</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align: center;"><a href="/wiki/Troposfera" title="Troposfera">Troposfèrics</a></th><td class="navbox-list navbox-odd hlist" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;width: 8%">3-18 km</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Cirrus" title="Cirrus">Cirrus (Ci)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/wiki/Cirrus_castellanus" title="Cirrus castellanus">Cirrus castellanus (Ci cas)</a></li> <li><a href="/wiki/Cirrus_fibratus" title="Cirrus fibratus">Cirrus fibratus (Ci fib)</a></li> <li><a href="/wiki/Cirrus_floccus" title="Cirrus floccus">Cirrus floccus (Ci flo)</a></li> <li><a href="/wiki/Cirrus_spissatus" title="Cirrus spissatus">Cirrus spissatus (Ci spi)</a></li> <li><a href="/wiki/Cirrus_uncinus" title="Cirrus uncinus">Cirrus uncinus (Ci unc)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Varietats de <i>Ci</i></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=Cirrus_intortus&action=edit&redlink=1" class="new" title="Cirrus intortus (encara no existeix)">Cirrus intortus (Ci in)</a></li> <li><a href="/w/index.php?title=Cirrus_vertebratus&action=edit&redlink=1" class="new" title="Cirrus vertebratus (encara no existeix)">Cirrus vertebratus (Ci ve)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Cirrocumulus" class="mw-redirect" title="Cirrocumulus">Cirrocumulus (Cc)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Espècies" scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=Cirrocumulus_castellanus&action=edit&redlink=1" class="new" title="Cirrocumulus castellanus (encara no existeix)">Cirrocumulus castellanus (Cc cas)</a></li> <li><a href="/w/index.php?title=Cirrocumulus_floccus&action=edit&redlink=1" class="new" title="Cirrocumulus floccus (encara no existeix)">Cirrocumulus floccus (Cc flo)</a></li> <li><a href="/w/index.php?title=Cirrocumulus_lenticularis&action=edit&redlink=1" class="new" title="Cirrocumulus lenticularis (encara no existeix)">Cirrocumulus lenticularis (Cc len)</a></li> <li><a href="/w/index.php?title=Cirrocumulus_stratiformis&action=edit&redlink=1" class="new" title="Cirrocumulus stratiformis (encara no existeix)">Cirrocumulus stratiformis (Cc str)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Cirrostratus" class="mw-redirect" title="Cirrostratus">Cirrostratus (Cs)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Espècies" scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=Cirrostratus_fibratus&action=edit&redlink=1" class="new" title="Cirrostratus fibratus (encara no existeix)">Cirrostratus fibratus (Cs fib)</a></li> <li><a href="/w/index.php?title=Cirrostratus_nebulosus&action=edit&redlink=1" class="new" title="Cirrostratus nebulosus (encara no existeix)">Cirrostratus nebulosus (Cs neb)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%">Afegiments per a alta altura i altres</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/Deixant" title="Deixant">Homomutatus (homut)</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 8%">2-8 km</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Altocumulus" class="mw-redirect" title="Altocumulus">Altocumulus (Ac)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Espècies" scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/Altocumulus_castellanus" title="Altocumulus castellanus">Altocumulus castellanus (Ac cas)</a></dd> <dd><a href="/w/index.php?title=Altocumulus_floccus&action=edit&redlink=1" class="new" title="Altocumulus floccus (encara no existeix)">Altocumulus floccus (Ac flo)</a></dd> <dd><a href="/wiki/Altocumulus_lenticularis" class="mw-redirect" title="Altocumulus lenticularis">Altocumulus lenticularis (Ac len)</a></dd> <dd><a href="/w/index.php?title=Altocumulus_stratiformis&action=edit&redlink=1" class="new" title="Altocumulus stratiformis (encara no existeix)">Altocumulus stratiformis (Ac str)</a></dd> <dd><a href="/w/index.php?title=Altocumulus_volutus&action=edit&redlink=1" class="new" title="Altocumulus volutus (encara no existeix)">Altocumulus volutus (Ac vol)</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Altostratus" class="mw-redirect" title="Altostratus">Altostratus (As)</a></th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/Altostratus" class="mw-redirect" title="Altostratus">Altostratus (As)</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Nimbostratus" class="mw-redirect" title="Nimbostratus">Nimbostratus (Ns)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/Nimbostratus" class="mw-redirect" title="Nimbostratus">Nimbostratus (Ns)</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 8%">0-2 km</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Cumulonimbus" title="Cumulonimbus">Cumulonimbus (Cb)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/Cumulonimbus_calvus" title="Cumulonimbus calvus">Cumulonimbus calvus (Cb cal)</a></dd> <dd><a href="/w/index.php?title=Cumulonimbus_capillatus&action=edit&redlink=1" class="new" title="Cumulonimbus capillatus (encara no existeix)">Cumulonimbus capillatus (Cb cap)</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Característiques addicionals per a <i>Cb</i></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Mur_de_n%C3%BAvols&action=edit&redlink=1" class="new" title="Mur de núvols (encara no existeix)">Cumulonimbus cauda (cau)</a></dd> <dd><a href="/wiki/Cumulonimbus_incus" title="Cumulonimbus incus">Cumulonimbus incus (inc)</a></dd> <dd><a href="/w/index.php?title=Mur_de_n%C3%BAvols&action=edit&redlink=1" class="new" title="Mur de núvols (encara no existeix)">Cumulonimbus murus (mur)</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Afegiments per a <i>Cb</i> i altres</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Cim_protuberant&action=edit&redlink=1" class="new" title="Cim protuberant (encara no existeix)">Cim protuberant</a></dd> <dd><a href="/w/index.php?title=Cumulonimbus_flumen&action=edit&redlink=1" class="new" title="Cumulonimbus flumen (encara no existeix)">Cumulonimbus flumen (Cb flu)</a></dd> <dd><a class="mw-selflink selflink">Cumulonimbus velum (Cb vel)</a></dd> <dd><a href="/w/index.php?title=Torre_calenta&action=edit&redlink=1" class="new" title="Torre calenta (encara no existeix)">Torre calenta</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Cumulus" class="mw-redirect" title="Cumulus">Cumulus (Cu)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Fractus&action=edit&redlink=1" class="new" title="Fractus (encara no existeix)">Fractus</a></dd> <dd><a href="/wiki/Cumulus_humilis" title="Cumulus humilis">Cumulus humilis (Cu hum)</a></dd> <dd><a href="/wiki/Cumulus_mediocris" title="Cumulus mediocris">Cumulus mediocris (Cu med)</a></dd> <dd><a href="/wiki/Cumulus_congestus" title="Cumulus congestus">Cumulus congestus (Cu con)</a> <i>([Tcu] és un terme utilitzat per l'<a href="/wiki/International_Civil_Aviation_Organization" class="mw-redirect" title="International Civil Aviation Organization">ICAO</a>)</i></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Altres</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=N%C3%BAvol_cua_de_cavall&action=edit&redlink=1" class="new" title="Núvol cua de cavall (encara no existeix)">Cua de cavall</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Stratus" class="mw-redirect" title="Stratus">Stratus (St)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Stratus_fractus&action=edit&redlink=1" class="new" title="Stratus fractus (encara no existeix)">Stratus fractus (St fra)</a></dd> <dd><a href="/w/index.php?title=Stratus_nebulosus&action=edit&redlink=1" class="new" title="Stratus nebulosus (encara no existeix)">Stratus nebulosus (St neb)</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Afegiments per a <i>St</i> i altres</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/Boira" title="Boira">Boira</a></dd> <dd><a href="/w/index.php?title=Stratus_silvagenitus&action=edit&redlink=1" class="new" title="Stratus silvagenitus (encara no existeix)">Stratus silvagenitus (St sil)</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%"><a href="/wiki/Stratocumulus" class="mw-redirect" title="Stratocumulus">Stratocumulus (Sc)</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Espècies" scope="row" class="navbox-group" style="width:1%">Espècies</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Stratocumulus_castellanus&action=edit&redlink=1" class="new" title="Stratocumulus castellanus (encara no existeix)">Stratocumulus castellanus (Sc cas)</a></dd> <dd><a href="/w/index.php?title=Stratocumulus_floccus&action=edit&redlink=1" class="new" title="Stratocumulus floccus (encara no existeix)">Stratocumulus floccus (Sc flo)</a></dd> <dd><a href="/w/index.php?title=Stratocumulus_lenticularis&action=edit&redlink=1" class="new" title="Stratocumulus lenticularis (encara no existeix)">Stratocumulus lenticularis (Sc len)</a></dd> <dd><a href="/w/index.php?title=Stratocumulus_stratiformis&action=edit&redlink=1" class="new" title="Stratocumulus stratiformis (encara no existeix)">Stratocumulus stratiformis (Sc str)</a></dd> <dd><a href="/w/index.php?title=Stratocumulus_volutus&action=edit&redlink=1" class="new" title="Stratocumulus volutus (encara no existeix)">Stratocumulus volutus (Sc vol)</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%">Característiques addicionals per a núvols de baixa altura</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Arcus_(n%C3%BAvol)&action=edit&redlink=1" class="new" title="Arcus (núvol) (encara no existeix)">Arcus</a></dd> <dd><a href="/w/index.php?title=N%C3%BAvol_embut&action=edit&redlink=1" class="new" title="Núvol embut (encara no existeix)">Embut</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%">Afegiments per a <i>Acc</i> de baixa altura i altres</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/wiki/P%C3%ADleu_(n%C3%BAvol)" title="Píleu (núvol)">Pileus (pil)</a></dd> <dd><a href="/wiki/Velum" class="mw-redirect" title="Velum">Velum (vel)</a></dd> <dd><a href="/wiki/Flammagenitus" class="mw-redirect" title="Flammagenitus">Flammagenitus (flgen)</a></dd> <dd><a href="/w/index.php?title=Cataractagenitus&action=edit&redlink=1" class="new" title="Cataractagenitus (encara no existeix)">Cataractagenitus (cagen)</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 8%">Altura no especificada</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%">Varietats</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Cirrus_duplicatus&action=edit&redlink=1" class="new" title="Cirrus duplicatus (encara no existeix)">Duplicatus (du)</a></dd> <dd><a href="/w/index.php?title=Cirrocumulus_lacunosus&action=edit&redlink=1" class="new" title="Cirrocumulus lacunosus (encara no existeix)">Lacunosus (la)</a></dd> <dd><a href="/w/index.php?title=Opacus&action=edit&redlink=1" class="new" title="Opacus (encara no existeix)">Opacus (op)</a></dd> <dd><a href="/w/index.php?title=Perlucidus&action=edit&redlink=1" class="new" title="Perlucidus (encara no existeix)">Perlucidus (pe)</a></dd> <dd><a href="/wiki/Cirrus_radiatus" title="Cirrus radiatus">Radiatus (ra)</a></dd> <dd><a href="/w/index.php?title=Translucidus&action=edit&redlink=1" class="new" title="Translucidus (encara no existeix)">Translucidus (tr)</a></dd> <dd><a href="/wiki/Altostratus_undulatus" title="Altostratus undulatus">Undulatus (un)</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%">Característiques addicionals</th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Asperitas&action=edit&redlink=1" class="new" title="Asperitas (encara no existeix)">Asperitas (asp)</a></dd> <dd><a href="/w/index.php?title=Cavum_(n%C3%BAvol)&action=edit&redlink=1" class="new" title="Cavum (núvol) (encara no existeix)">Cavum (cav)</a></dd> <dd><a href="/w/index.php?title=Inestabilitat_de_Kelvin-Helmholtz&action=edit&redlink=1" class="new" title="Inestabilitat de Kelvin-Helmholtz (encara no existeix)">Fluctus (flu)</a></dd> <dd><a href="/wiki/Iridisc%C3%A8ncia" class="mw-redirect" title="Iridiscència">Iridiscència</a></dd> <dd><a href="/wiki/Mammatus" title="Mammatus">Mammatus (mam)</a></dd> <dd><a href="/wiki/Precipitaci%C3%B3_atmosf%C3%A8rica" title="Precipitació atmosfèrica">Praecipitatio (pra)</a></dd> <dd><a href="/wiki/Virga" title="Virga">Virga (vir)</a></dd></dl> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;width: 12%">Afegiments i altres</th><td class="navbox-list navbox-even" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <dl><dd><a href="/w/index.php?title=Actinoform&action=edit&redlink=1" class="new" title="Actinoform (encara no existeix)">Actinoform</a></dd> <dd><a href="/w/index.php?title=Afegiments_per_a_n%C3%BAvols&action=edit&redlink=1" class="new" title="Afegiments per a núvols (encara no existeix)">Afegiments</a></dd> <dd><a href="/wiki/Antropon%C3%BAvol" title="Antroponúvol">Homogenitus</a> (<i><a href="/wiki/Chemtrail" title="Chemtrail">chemtrail</a></i> • <a href="/w/index.php?title=Cirrus_aviaticus&action=edit&redlink=1" class="new" title="Cirrus aviaticus (encara no existeix)">Cirrus aviaticus</a> • <i><a href="/w/index.php?title=N%C3%BAvol_de_bolet&action=edit&redlink=1" class="new" title="Núvol de bolet (encara no existeix)">núvol de bolet</a></i>)</dd> <dd><a href="/w/index.php?title=Pannus_(n%C3%BAvol)&action=edit&redlink=1" class="new" title="Pannus (núvol) (encara no existeix)">Pannus (pan)</a></dd></dl> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtingut de «<a dir="ltr" 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