{"id":60431,"date":"2026-07-17T11:01:35","date_gmt":"2026-07-17T09:01:35","guid":{"rendered":"https:\/\/alertes-meteo.com\/?page_id=60431"},"modified":"2026-07-17T12:04:53","modified_gmt":"2026-07-17T10:04:53","slug":"cartes-meteo-en-france-observation-du-windchill-refroidissement-eolien-temperatures-ressenties","status":"publish","type":"page","link":"https:\/\/alertes-meteo.com\/index.php\/cartes-meteo\/cartes-meteo-en-france-observation-du-windchill-refroidissement-eolien-temperatures-ressenties\/","title":{"rendered":"Cartes M\u00e9t\u00e9o en France &#8211; Observation du windchill \/ refroidissement \u00e9olien \/ temp\u00e9ratures ressenties"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1575px;margin-left: calc(-5% \/ 2 );margin-right: calc(-5% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.375%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:2.375%;--awb-width-medium:100%;--awb-spacing-right-medium:2.375%;--awb-spacing-left-medium:2.375%;--awb-width-small:100%;--awb-spacing-right-small:2.375%;--awb-spacing-left-small:2.375%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><h1 align=\"center\"><b>Comment lire une carte d&rsquo;Observation du windchill \/ refroidissement \u00e9olien \/ temp\u00e9ratures ressenties ?<\/b><\/h1>\n<\/div><div style=\"display:flex; justify-content:center;\">\n  <div style=\"border:1px solid #ddd; border-radius:8px; padding:20px; max-width:400px; font-family:Arial, sans-serif; box-shadow:0 2px 6px rgba(0,0,0,0.1); text-align:center;\">\n    <h3 style=\"margin-top:0; color:#0073aa;\">\ud83c\udf2c\ufe0f Calcul du windchill<\/h3>\n    <p style=\"color:#555; font-size:14px;\">\n      Calculez la temp\u00e9rature ressentie au vent gr\u00e2ce \u00e0 la formule officielle (m\u00e9t\u00e9o hiver).\n    <\/p>\n    <a href=\"https:\/\/alertes-meteo.com\/index.php\/cartes-meteo\/calculer-la-temperature-ressentie-au-vent-windchill\/\" \n       style=\"display:inline-block; background-color:#0073aa; color:#ffffff; padding:10px 20px; text-decoration:none; border-radius:6px; font-weight:bold;\">\n       Acc\u00e9der au calculateur \u2192\n    <\/a>\n  <\/div>\n<\/div>\n<div class=\"fusion-text fusion-text-2\"><p style=\"text-align: center;\"><strong>CARTE (actualis\u00e9es en temps r\u00e9el)<\/strong><\/p>\n<\/div><div style=\"text-align:center;\">\n  <img class=\"lazyload\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-orig-src=\"https:\/\/www.meteociel.fr\/cartes_obs\/windchill.png\" \n       style=\"max-width:100%; height:auto;\" \n         alt=\"Carte des Temp\u00e9ratures windchill\">\n<\/div><div class=\"fusion-text fusion-text-3\"><p style=\"text-align: center;\"><strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<\/div><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-8902396130105212\"\n     crossorigin=\"anonymous\"><\/script>\n<!-- bas de page -->\n<ins class=\"adsbygoogle\"\n     style=\"display:block\"\n     data-ad-client=\"ca-pub-8902396130105212\"\n     data-ad-slot=\"7724440717\"\n     data-ad-format=\"auto\"\n     data-full-width-responsive=\"true\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><div class=\"fusion-text fusion-text-4\"><p style=\"text-align: center;\"><strong>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/p>\n<\/div><div class=\"fusion-text fusion-text-5\"><div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"faq-windchill-en-france\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-lg first:mt-0 md:text-lg &#091;hr+&amp;&#093;:mt-4\">FAQ windchill en France<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"1-quest-ce-que-le-windchill-ou-refroidissement-oli\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">1. Qu\u2019est-ce que le windchill ou refroidissement \u00e9olien ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">Le windchill, ou indice de refroidissement \u00e9olien (IRE), d\u00e9crit la temp\u00e9rature ressentie par la peau sous l\u2019effet combin\u00e9 de la temp\u00e9rature de l\u2019air et de la vitesse du vent. En pr\u00e9sence de vent, la fine couche d\u2019air r\u00e9chauff\u00e9e au contact de la peau est balay\u00e9e, ce qui expose le corps \u00e0 un air plus froid et plus sec et intensifie la sensation de froid. L\u2019indice de refroidissement \u00e9olien traduit donc de mani\u00e8re quantitative cette sensation de froid accrue et s\u2019exprime comme une \u00ab pseudo\u2011temp\u00e9rature \u00bb sans unit\u00e9.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"2-comment-est-calcule-la-temprature-ressentie-indi\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">2. Comment est calcul\u00e9e la temp\u00e9rature ressentie (indice de refroidissement \u00e9olien) ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">La temp\u00e9rature ressentie est calcul\u00e9e \u00e0 partir d\u2019une relation math\u00e9matique empirique qui combine la temp\u00e9rature de l\u2019air sous abri et la vitesse moyenne du vent. Les m\u00e9t\u00e9orologues utilisent cette formule pour transformer un couple\u00a0<span class=\"katex\"><span class=\"katex-mathml\">T\u00a0air,\u00a0V\u00a0vent<\/span><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord text\"><span class=\"mord\">T\u00a0air,\u00a0V\u00a0vent<\/span><\/span><\/span><\/span><\/span>\u00a0en une valeur de temp\u00e9rature ressentie, souvent plus basse que la temp\u00e9rature mesur\u00e9e. Par exemple, pour une temp\u00e9rature de \u221210 \u00b0C et un vent de 30 km\/h, l\u2019indice peut \u00eatre de \u221220, ce qui signifie que le corps ressent un froid \u00e9quivalent \u00e0 \u221220 \u00b0C par temps calme.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"3-pourquoi-la-temprature-ressentie-est-importante\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">3. Pourquoi la temp\u00e9rature ressentie est importante pour la sant\u00e9 et la s\u00e9curit\u00e9 ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">La temp\u00e9rature ressentie permet d\u2019estimer l\u2019impact r\u00e9el du froid sur l\u2019organisme et de mieux anticiper le risque de gelures et d\u2019hypothermie, notamment en climat rigoureux ou lors d\u2019\u00e9pisodes de froid intense en France. Elle est utilis\u00e9e par les services m\u00e9t\u00e9o et de sant\u00e9 publique pour diffuser des messages de pr\u00e9vention et adapter les consignes pour les populations vuln\u00e9rables et les travailleurs expos\u00e9s. En int\u00e9grant la vitesse du vent, l\u2019indice de refroidissement \u00e9olien fournit une information plus pertinente que la seule temp\u00e9rature sous abri pour \u00e9valuer le danger du froid sur le terrain.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"4-comment-lire-une-carte-de-windchill-ou-de-tempra\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">4. Comment lire une carte de windchill ou de temp\u00e9ratures ressenties en France ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">Une carte de windchill repr\u00e9sente, station par station, la temp\u00e9rature ressentie calcul\u00e9e \u00e0 partir des observations de temp\u00e9rature et de vent, souvent sous forme de valeurs chiffr\u00e9es ou de plages de couleur. Sur des sites d\u2019observation en temps r\u00e9el comme Meteociel, les cartes affichent en continu les temp\u00e9ratures ressenties sur la France et les pays limitrophes, actualis\u00e9es \u00e0 partir des derni\u00e8res donn\u00e9es disponibles. Il suffit de survoler ou de zoomer sur la carte pour conna\u00eetre la valeur de temp\u00e9rature ressentie locale et appr\u00e9cier les zones o\u00f9 le refroidissement \u00e9olien est le plus marqu\u00e9.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"5-quelle-diffrence-entre-temprature-sous-abri-et-t\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">5. Quelle diff\u00e9rence entre temp\u00e9rature sous abri et temp\u00e9rature ressentie ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">La temp\u00e9rature sous abri est la temp\u00e9rature de l\u2019air mesur\u00e9e avec un thermom\u00e8tre plac\u00e9 \u00e0 environ 1,5 m du sol dans un abri ajour\u00e9, selon la d\u00e9finition standard de la m\u00e9t\u00e9orologie. La temp\u00e9rature ressentie, elle, int\u00e8gre l\u2019effet du vent et traduit la sensation de froid per\u00e7ue sur la peau, qui est souvent plus intense que ne le sugg\u00e8re la temp\u00e9rature sous abri par temps calme. En pratique, une carte de temp\u00e9ratures sous abri et une carte de windchill peuvent montrer des \u00e9carts de plusieurs degr\u00e9s, surtout lorsque les rafales atteignent 40 \u00e0 50 km\/h.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"6--partir-de-quelles-valeurs-de-windchill-le-risqu\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">6. \u00c0 partir de quelles valeurs de windchill le risque de gelures augmente fortement ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">Quand la temp\u00e9rature de l\u2019air est nettement n\u00e9gative et que le vent souffle mod\u00e9r\u00e9ment \u00e0 fortement, l\u2019indice de refroidissement \u00e9olien peut chuter bien en dessous de la temp\u00e9rature sous abri, ce qui acc\u00e9l\u00e8re la perte de chaleur corporelle et augmente fortement le risque de gelures. Par exemple, une temp\u00e9rature de \u221210 \u00b0C avec un vent de 30 km\/h correspond \u00e0 une sensation de \u221220 \u00b0C, seuil o\u00f9 la protection des extr\u00e9mit\u00e9s et du visage devient imp\u00e9rative en ext\u00e9rieur prolong\u00e9. Les r\u00e9gions au climat rigoureux utilisent cet indice pour d\u00e9finir des seuils d\u2019alerte et des recommandations pr\u00e9cises, pratique transposable aux \u00e9pisodes de froid en France.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"7-o-consulter-des-cartes-mto-de-windchill-et-de-te\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">7. O\u00f9 consulter des cartes m\u00e9t\u00e9o de windchill et de temp\u00e9ratures ressenties en temps r\u00e9el en France ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">Des sites d\u2019observation comme Meteociel proposent une carte d\u00e9di\u00e9e au windchill, avec les temp\u00e9ratures ressenties calcul\u00e9es en temps r\u00e9el \u00e0 partir des stations fran\u00e7aises et limitrophes. D\u2019autres plateformes, comme Meteo Paris en partenariat avec Meteociel, publient des cartes r\u00e9gionales de temp\u00e9ratures ressenties en fonction du vent ou de l\u2019humidit\u00e9, par exemple pour l\u2019\u00cele\u2011de\u2011France. Ces cartes compl\u00e8tent les cartes classiques de temp\u00e9ratures sous abri et offrent une vision plus r\u00e9aliste du froid effectivement ressenti par la population.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"8-windchill-et-humidex--quelle-diffrence-pour-les\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">8. Windchill et humidex : quelle diff\u00e9rence pour les temp\u00e9ratures ressenties ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">Le windchill concerne la sensation de froid li\u00e9e au refroidissement \u00e9olien, il combine temp\u00e9rature de l\u2019air et vitesse du vent pour d\u00e9crire une temp\u00e9rature ressentie plus froide. L\u2019humidex, \u00e0 l\u2019inverse, est un indice de temp\u00e9rature ressentie par temps chaud et humide, qui associe la temp\u00e9rature et l\u2019humidit\u00e9 pour estimer l\u2019inconfort li\u00e9 \u00e0 la chaleur. En France, on utilise donc des cartes d\u2019humidex pour les \u00e9pisodes de chaleur et des cartes de windchill pour les situations de froid venteux, afin de couvrir les deux extr\u00eames de confort thermique.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"9-comment-utiliser-les-cartes-de-tempratures-resse\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">9. Comment utiliser les cartes de temp\u00e9ratures ressenties pour organiser activit\u00e9s et travail en ext\u00e9rieur ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">Les cartes de temp\u00e9ratures ressenties permettent de choisir des plages horaires plus confortables pour les activit\u00e9s ext\u00e9rieures, le sport ou les travaux expos\u00e9s au vent, en tenant compte du refroidissement \u00e9olien r\u00e9el plut\u00f4t que de la seule temp\u00e9rature sous abri. En consultant les valeurs de windchill sur sa r\u00e9gion, chacun peut adapter son \u00e9quipement (couches isolantes, protection du visage et des mains) et limiter la dur\u00e9e d\u2019exposition lorsque l\u2019indice indique un froid intense. Les collectivit\u00e9s, les services de secours et les entreprises en ext\u00e9rieur s\u2019appuient \u00e9galement sur ces indices pour ajuster leurs consignes de s\u00e9curit\u00e9 et de pr\u00e9vention.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<h2 id=\"10-le-windchill-estil-une-temprature-relle-mesure\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">10. Le windchill est\u2011il une temp\u00e9rature r\u00e9elle mesur\u00e9e par un instrument ?<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"has-inline-images my-2 first:mt-0 &#091;&amp;:has(&#091;data-inline-type=image&#093;)+&amp;:has(&#091;data-inline-type=image&#093;)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;:has(table)_&#091;data-inline-type=image&#093;&#093;:hidden &#091;&amp;_h1:first-of-type&#093;:mt-8 &#091;&amp;_h2:first-of-type&#093;:mt-6\">\n<div>\n<div class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 &#091;word-break:break-word&#093; &#091;&amp;_&gt;*:first-child&#093;:mt-0 &#091;&amp;_&gt;*:last-child&#093;:mb-0\" data-renderer=\"lm\">\n<p class=\"my-2 &#091;&amp;+p&#093;:mt-4 &#091;&amp;_strong:has(+br)&#093;:inline-block &#091;&amp;_strong:has(+br)&#093;:align-top\">Le windchill n\u2019est pas une temp\u00e9rature physique directement mesur\u00e9e par un thermom\u00e8tre, mais un indice calcul\u00e9 qui ressemble \u00e0 une temp\u00e9rature afin de traduire la sensation de froid sur la peau. Les scientifiques ont con\u00e7u une formule empirique reliant la temp\u00e9rature de l\u2019air et la vitesse du vent pour estimer num\u00e9riquement cette perception, et l\u2019indice \u00e9olien s\u2019exprime donc comme un nombre sans unit\u00e9. Les cartes et tableaux de windchill pr\u00e9sentent ces valeurs sous forme de \u00ab temp\u00e9ratures ressenties \u00bb afin de les rendre imm\u00e9diatement compr\u00e9hensibles par le grand public et les d\u00e9cideurs.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"fusion-text fusion-text-6\"><p>Source : www.meteociel.fr<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":14485,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"Cartes m\u00e9t\u00e9o de temp\u00e9rature ressentie (windchill) en France \u2013 refroidissement \u00e9olien et observations en temps r\u00e9el","_seopress_titles_desc":"D\u00e9couvrez les cartes m\u00e9t\u00e9o de temp\u00e9rature ressentie (windchill) en France : d\u00e9finition, calcul, risques sant\u00e9 et sites pour observer le refroidissement \u00e9olien en temps r\u00e9el.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"temperature mer","footnotes":""},"class_list":["post-60431","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/60431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/comments?post=60431"}],"version-history":[{"count":11,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/60431\/revisions"}],"predecessor-version":[{"id":60449,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/60431\/revisions\/60449"}],"up":[{"embeddable":true,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/14485"}],"wp:attachment":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/media?parent=60431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}