{"id":1947,"date":"2025-08-18T10:42:06","date_gmt":"2025-08-18T08:42:06","guid":{"rendered":"https:\/\/acriv.org\/WP\/?page_id=1947"},"modified":"2025-08-18T10:42:06","modified_gmt":"2025-08-18T08:42:06","slug":"%e2%9b%88%ef%b8%8fmto-les-nuages","status":"publish","type":"page","link":"https:\/\/acriv.org\/WP\/%e2%9b%88%ef%b8%8fmto-les-nuages\/","title":{"rendered":"\u26c8\ufe0fMTO : LES NUAGES"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1100\" height=\"619\" src=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/08\/nuages.webp\" alt=\"\" class=\"wp-image-1948\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf0d Les trois \u00e9tages de nuages<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>Nuages d\u2019\u00e9tage haut<\/strong> (6 000 \u00e0 13 000 m environ)<\/h3>\n\n\n\n<p>Compos\u00e9s principalement de <strong>cristaux de glace<\/strong> \u2192 fins, blancs, laissent souvent passer le Soleil.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cirrus (Ci)<\/strong> : filaments blancs, aspect de \u00ab\u00a0cheveux\u00a0\u00bb \u2192 annoncent souvent un changement de temps (arriv\u00e9e d\u2019un front).<\/li>\n\n\n\n<li><strong>Cirrostratus (Cs)<\/strong> : voile blanc uniforme, souvent accompagn\u00e9 de <strong>halo autour du Soleil ou de la Lune<\/strong> \u2192 signe d\u2019humidit\u00e9 en altitude, annonciateur de pluie\/neige sous 24h.<\/li>\n\n\n\n<li><strong>Cirrocumulus (Cc)<\/strong> : petits moutonnements blancs, parfois en bancs \u2192 temps g\u00e9n\u00e9ralement stable, mais possible \u00e9volution orageuse si forte instabilit\u00e9.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>Nuages d\u2019\u00e9tage moyen<\/strong> (2 000 \u00e0 6 000 m)<\/h3>\n\n\n\n<p>Compos\u00e9s d\u2019un m\u00e9lange de <strong>gouttelettes d\u2019eau<\/strong> et parfois de <strong>cristaux de glace<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Altostratus (As)<\/strong> : voile gris\/bleu\u00e2tre, Soleil visible comme \u00e0 travers du verre d\u00e9poli \u2192 pr\u00e9c\u00e8de souvent des pluies continues ou de la neige.<\/li>\n\n\n\n<li><strong>Altocumulus (Ac)<\/strong> : bancs ou rouleaux gris\/blancs, souvent en \u00ab\u00a0\u00e9caille de poisson\u00a0\u00bb \u2192 annoncent fr\u00e9quemment de l\u2019instabilit\u00e9 et des orages dans la journ\u00e9e.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>Nuages d\u2019\u00e9tage bas<\/strong> (0 \u00e0 2 000 m)<\/h3>\n\n\n\n<p>Compos\u00e9s surtout de <strong>gouttelettes d\u2019eau<\/strong>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stratus (St)<\/strong> : couche grise uniforme, aspect de brouillard \u00e9lev\u00e9 \u2192 bruine, visibilit\u00e9 r\u00e9duite.<\/li>\n\n\n\n<li><strong>Stratocumulus (Sc)<\/strong> : gros rouleaux ou pav\u00e9s gris\/blancs, ciel souvent couvert mais rarement de fortes pr\u00e9cipitations.<\/li>\n\n\n\n<li><strong>Nimbostratus (Ns)<\/strong> : couche \u00e9paisse sombre \u2192 <strong>pluies continues\/neige durable<\/strong>, souvent associ\u00e9e \u00e0 des perturbations.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u26c8\ufe0f Nuages \u00e0 d\u00e9veloppement vertical (tous \u00e9tages)<\/h2>\n\n\n\n<p>Ils peuvent partir de l\u2019\u00e9tage bas et s\u2019\u00e9lever jusqu\u2019\u00e0 l\u2019\u00e9tage moyen ou haut.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cumulus humilis<\/strong> : petits, blancs, \u00ab\u00a0choux-fleurs\u00a0\u00bb, beau temps.<\/li>\n\n\n\n<li><strong>Cumulus mediocris<\/strong> : plus d\u00e9velopp\u00e9s, signal d\u2019instabilit\u00e9 \u2192 possibles averses.<\/li>\n\n\n\n<li><strong>Cumulonimbus (Cb)<\/strong> : \u00e9normes nuages bourgeonnants avec sommet en enclume \u2192 <strong>averses violentes, orages, gr\u00eale, rafales, parfois tornades<\/strong>.<\/li>\n\n\n\n<li><strong>Cumulus congestus<\/strong> : \u00e9tape interm\u00e9diaire avant le cumulonimbus.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd0e R\u00e9sum\u00e9 : cons\u00e9quences m\u00e9t\u00e9orologiques<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cirrus, cirrostratus, cirrocumulus<\/strong> \u2192 annoncent souvent un changement de temps.<\/li>\n\n\n\n<li><strong>Altostratus, altocumulus<\/strong> \u2192 annoncent instabilit\u00e9, pluie ou orage.<\/li>\n\n\n\n<li><strong>Stratus, stratocumulus<\/strong> \u2192 grisaille, bruine, mais pas de fortes pluies.<\/li>\n\n\n\n<li><strong>Nimbostratus<\/strong> \u2192 pluies\/neige durables.<\/li>\n\n\n\n<li><strong>Cumulus<\/strong> \u2192 beau temps sauf s\u2019ils gonflent trop.<\/li>\n\n\n\n<li><strong>Cumulonimbus<\/strong> \u2192 orages, pluies intenses, ph\u00e9nom\u00e8nes violents.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83c\udf0d Les trois \u00e9tages de nuages 1. Nuages d\u2019\u00e9tage haut (6 000 \u00e0 13 000 m environ) Compos\u00e9s principalement de cristaux de glace \u2192 fins, blancs, laissent souvent passer le Soleil. 2. Nuages d\u2019\u00e9tage moyen (2 000 \u00e0 6 000 m) Compos\u00e9s d\u2019un m\u00e9lange de gouttelettes d\u2019eau et parfois de cristaux de glace. 3. Nuages d\u2019\u00e9tage bas (0 \u00e0 2<\/p>\n<p><a class=\"more-link\" href=\"https:\/\/acriv.org\/WP\/%e2%9b%88%ef%b8%8fmto-les-nuages\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1947","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/1947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/comments?post=1947"}],"version-history":[{"count":1,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/1947\/revisions"}],"predecessor-version":[{"id":1949,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/1947\/revisions\/1949"}],"wp:attachment":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/media?parent=1947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}