{"id":60478,"date":"2026-07-17T15:36:25","date_gmt":"2026-07-17T13:36:25","guid":{"rendered":"https:\/\/alertes-meteo.com\/?page_id=60478"},"modified":"2026-07-17T15:40:09","modified_gmt":"2026-07-17T13:40:09","slug":"cartes-meteo-en-france-observation-de-la-pression","status":"publish","type":"page","link":"https:\/\/alertes-meteo.com\/index.php\/cartes-meteo\/cartes-meteo-en-france-observation-de-la-pression\/","title":{"rendered":"Cartes M\u00e9t\u00e9o en France &#8211; Observation de la pression atmosph\u00e9rique en temps r\u00e9el"},"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;o<\/b><b>bservation de la pression atmosph\u00e9rique par les Isobares ? (actualis\u00e9es en temps r\u00e9el)<\/b><\/h1>\n<\/div><div style=\"text-align:center; margin:20px 0;\">\n  <button\n    type=\"button\"\n    onclick=\"window.location.href='https:\/\/alertes-meteo.com\/index.php\/cartes-meteo\/calculer-lindice-humidex-temperature-ressentie-avec-lhumidite\/';\"\n    style=\"padding:14px 28px; background:#1683c5; color:white; border:none; border-radius:8px; font-size:18px; font-weight:bold; cursor:pointer;\">\n    Calcul indice humidex\n  <\/button>\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\/pression.png\" \n       style=\"max-width:100%; height:auto;\" \n         alt=\"Carte des Observation de la pression (par les Isobares) France\">\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-2\"><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-cartes-mto-de-pression-par-isobares\" 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 cartes m\u00e9t\u00e9o de pression par isobares<\/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-quune-carte-mto-de-pression-par-isobare\" 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 qu\u2019une carte m\u00e9t\u00e9o de pression par isobares 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 m\u00e9t\u00e9o de pression par isobares en France est une carte d\u2019analyse qui relie, par des lignes appel\u00e9es isobares, tous les points o\u00f9 la pression atmosph\u00e9rique au niveau de la mer est identique \u00e0 un instant donn\u00e9.<br \/>\nElle traduit le \u00ab relief \u00bb de la pression (creux d\u00e9pressionnaires, sommets anticycloniques) et permet de rep\u00e9rer imm\u00e9diatement les zones de basse pression (d\u00e9pressions) et de haute pression (anticyclones) sur le territoire fran\u00e7ais.<\/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-sont-traces-les-isobares-sur-une-carte-d\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">2. Comment sont trac\u00e9es les isobares sur une carte de pression ?<\/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 isobares sont trac\u00e9es \u00e0 partir de donn\u00e9es d\u2019observation fournies par les stations m\u00e9t\u00e9orologiques de surface, puis interpol\u00e9es pour couvrir les zones d\u00e9pourvues de mesures directes.<br \/>\nSur les cartes classiques, les isobares sont dessin\u00e9es \u00e0 intervalles r\u00e9guliers de pression (souvent tous les 4 \u00e0 5 hPa) et chaque ligne porte une valeur chiffr\u00e9e en hectopascals, ce qui structure le champ de pression comme des courbes de niveau sur une carte de relief.<\/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-quelle-est-la-pression-moyenne-et-comment-distin\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">3. Quelle est la pression moyenne et comment distinguer hautes et basses pressions ?<\/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 pression atmosph\u00e9rique moyenne au niveau de la mer est d\u2019environ 1013 hPa, valeur souvent utilis\u00e9e comme r\u00e9f\u00e9rence pour distinguer anticyclones et d\u00e9pressions.<br \/>\nEn pratique, on consid\u00e8re qu\u2019un syst\u00e8me de haute pression (anticyclone) pr\u00e9sente des valeurs sup\u00e9rieures \u00e0 1013\u20131015 hPa, tandis qu\u2019un syst\u00e8me de basse pression (d\u00e9pression) affiche des valeurs inf\u00e9rieures \u00e0 ce seuil.<\/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-identifier-une-dpression-et-un-anticyclo\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">4. Comment identifier une d\u00e9pression et un anticyclone sur une carte d\u2019isobares ?<\/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 d\u00e9pression se rep\u00e8re par un ensemble d\u2019isobares ferm\u00e9es organis\u00e9es autour d\u2019un centre de pression minimale, g\u00e9n\u00e9ralement marqu\u00e9 par une lettre B ou D, avec des valeurs qui diminuent vers le centre.<br \/>\nUn anticyclone se visualise au contraire par des isobares ferm\u00e9es entourant un centre de pression maximale, not\u00e9 H, avec des valeurs qui augmentent vers le centre, ce qui signe un temps plus stable sur la zone concern\u00e9e.<\/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--quoi-sert-lespacement-des-isobares-pour-estimer\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">5. \u00c0 quoi sert l\u2019espacement des isobares pour estimer le vent ?<\/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\">L\u2019espacement des isobares indique directement le gradient de pression et donc la force du vent : plus les lignes sont serr\u00e9es, plus le vent r\u00e9el est fort ; plus elles sont espac\u00e9es, plus le vent est faible.<br \/>\nLe vent souffle globalement parall\u00e8lement aux isobares, autour des d\u00e9pressions et des anticyclones, ce qui permet d\u2019anticiper la direction dominante des vents de surface \u00e0 partir d\u2019une simple lecture de la carte.<\/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-quelle-diffrence-entre-carte-dobservation-et-car\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">6. Quelle diff\u00e9rence entre carte d\u2019observation et carte de pr\u00e9vision de pression ?<\/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 d\u2019observation de la pression repr\u00e9sente les valeurs r\u00e9ellement mesur\u00e9es \u00e0 une heure donn\u00e9e par les stations m\u00e9t\u00e9o de France et des pays limitrophes, \u00e9ventuellement compl\u00e9t\u00e9es par une extrapolation dans les zones sans mesures.<br \/>\nUne carte de pr\u00e9vision de pression est issue de mod\u00e8les num\u00e9riques (comme ALADIN ou GFS) et montre l\u2019\u00e9volution pr\u00e9vue des isobares et des syst\u00e8mes de pression dans les heures et jours \u00e0 venir sur l\u2019Europe et la 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-trouver-des-cartes-dobservation-de-la-pression\" 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 trouver des cartes d\u2019observation de la pression par isobares pour la 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 cartes d\u2019observation de la pression au niveau de la mer sont disponibles en temps r\u00e9el sur des sites sp\u00e9cialis\u00e9s comme Meteociel, qui affiche les isobares et les valeurs de pression relev\u00e9es par les stations fran\u00e7aises.<br \/>\nD\u2019autres portails, tels que Meteoblue ou des sites de pr\u00e9vision r\u00e9gionale, proposent \u00e9galement des graphiques synoptiques de pression au niveau de la mer, avec isobares et champs de couleur, pour la France et l\u2019Europe.<\/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-comment-interprter-ces-cartes-pour-prvoir-le-tem\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">8. Comment interpr\u00e9ter ces cartes pour pr\u00e9voir le temps 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\">Un champ de haute pression bien install\u00e9 avec des isobares relativement espac\u00e9es traduit g\u00e9n\u00e9ralement un temps stable, souvent ensoleill\u00e9, typique des situations anticycloniques, parfois avec brume ou brouillard en saison froide.<br \/>\n\u00c0 l\u2019inverse, un champ d\u00e9pressionnaire marqu\u00e9, associ\u00e9 \u00e0 des isobares resserr\u00e9es et \u00e0 des fronts, annonce des vents plus forts, un ciel tr\u00e8s nuageux et des pr\u00e9cipitations, voire des temp\u00eates dans les d\u00e9pressions profondes.<\/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-les-cartes-de-pression-par-isobares-sont-elles-u\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">9. Les cartes de pression par isobares sont-elles utiles pour la navigation et les activit\u00e9s ext\u00e9rieures ?<\/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 pression par isobares sont essentielles pour la navigation maritime et a\u00e9rienne, car elles permettent d\u2019anticiper vents, coups de vent et zones de mauvais temps le long d\u2019un trajet.<br \/>\nElles sont aussi tr\u00e8s utiles pour les activit\u00e9s ext\u00e9rieures terrestres (agriculture, randonn\u00e9e, sports outdoor), en donnant une vue d\u2019ensemble des tendances m\u00e9t\u00e9o \u00e0 grande \u00e9chelle, au-del\u00e0 de la simple pr\u00e9vision ponctuelle.<\/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--quelle-frquence-les-cartes-de-pression-dobserv\" class=\"font-editorial font-bold mb-2 mt-4 &#091;.has-inline-images_&amp;&#093;:clear-end text-base first:mt-0\">10. \u00c0 quelle fr\u00e9quence les cartes de pression d\u2019observation sont-elles mises \u00e0 jour ?<\/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 pression d\u2019observation de surface sont r\u00e9actualis\u00e9es r\u00e9guli\u00e8rement, souvent toutes les heures, afin de refl\u00e9ter au mieux la situation atmosph\u00e9rique en temps r\u00e9el sur la France.<br \/>\nCette mise \u00e0 jour fr\u00e9quente permet de suivre l\u2019\u00e9volution des syst\u00e8mes de pression, de v\u00e9rifier le d\u00e9placement des d\u00e9pressions et anticyclones, et d\u2019ajuster les pr\u00e9visions locales de vent et de temps sensible.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><div class=\"fusion-text fusion-text-3\"><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 en France : observation de la pression par isobares (guide + FAQ)","_seopress_titles_desc":"D\u00e9couvrez comment lire les cartes m\u00e9t\u00e9o de pression en France gr\u00e2ce aux isobares : anticyclones, d\u00e9pressions, vent, exemples concrets et FAQ compl\u00e8te pour interpr\u00e9ter vos cartes d\u2019observation comme un pro.","_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-60478","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/60478","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=60478"}],"version-history":[{"count":5,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/60478\/revisions"}],"predecessor-version":[{"id":60484,"href":"https:\/\/alertes-meteo.com\/index.php\/wp-json\/wp\/v2\/pages\/60478\/revisions\/60484"}],"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=60478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}