{"id":6459,"date":"2025-12-28T22:15:51","date_gmt":"2025-12-28T21:15:51","guid":{"rendered":"https:\/\/meteo-sain-bel.fr\/wp\/blog\/le-28-decembre-2025-a-21h15-le-chaos-de-la-tempete-de-neige-de-fin-decembre-1970-sur-laxe-valence-montelimar\/"},"modified":"2025-12-28T22:15:51","modified_gmt":"2025-12-28T21:15:51","slug":"le-28-decembre-2025-a-21h15-le-chaos-de-la-tempete-de-neige-de-fin-decembre-1970-sur-laxe-valence-montelimar","status":"publish","type":"post","link":"https:\/\/meteo-sain-bel.fr\/wp\/blog\/le-28-decembre-2025-a-21h15-le-chaos-de-la-tempete-de-neige-de-fin-decembre-1970-sur-laxe-valence-montelimar\/","title":{"rendered":"le 28 d\u00e9cembre 2025 \u00e0 21h15  Le chaos de la temp\u00eate de neige de fin d\u00e9cembre 1970 sur l\u2019axe Valence-Mont\u00e9limar"},"content":{"rendered":"<p>M\u00e9t\u00e9o\u00a0 Republi\u00e9 via Innoreader <a href=\"https:\/\/www.meteo-paris.com\/actualites\/le-chaos-de-la-tempete-de-neige-de-fin-decembre-1970-sur-l-axe-valence-montelimar\" target=\"_blank\" class=\"feedzy-rss-link-icon\">Lire la Suite<\/a><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/couverture-tempete-neige-1970.png\" \/><\/p>\n<p>Le 29 d\u00e9cembre 1970, la pire temp\u00eate de neige depuis 1917 paralyse le nord des r\u00e9gions M\u00e9diterran\u00e9ennes.\u00a0 Alors que la neige recouvre d\u00e9j\u00e0 toute la moyenne vall\u00e9e du Rh\u00f4ne, l\u2019autoroute du soleil reste ouverte, pi\u00e9geant 6000 voitures sur 53 km.\u00a0 On fr\u00f4le la catastrophe et on r\u00e9alise vite que cette portion d\u2019autoroute, ouverte depuis seulement 4 ans, manque cruellement d\u2019un plan de secours pour une telle situation.<\/p>\n<p>\u00a0<\/p>\n<h2>La temp\u00eate de neige prend au pi\u00e8ge des milliers d\u2019automobilistes\u00a0<\/h2>\n<p>\u00a0<\/p>\n<p>Cette v\u00e9ritable catastrophe a beaucoup fait parler d\u2019elle durant des ann\u00e9es car c\u2019est l\u2019exemple \u00e0 ne pas suivre\u2026\u00a0<\/p>\n<p>De nombreux automobilistes sont oblig\u00e9s de partir \u00e0 pied, en pleine nuit, dans cette effroyable temp\u00eate de neige, \u00e0 la recherche de la station-service la plus proche &#8211; une centaine d\u2019entre eux coucheront sur l\u2019air de Portes-l\u00e8s-Valence. D\u2019autres restent prisonniers plus de trois jours sans manger dans leur v\u00e9hicule non chauff\u00e9\u00a0; certains auront des d\u00e9buts de gelures aux mains et aux pieds.<\/p>\n<p>Le 30 d\u00e9cembre 1970, le mistral se l\u00e8ve et forme d\u2019\u00e9normes cong\u00e8res qui engloutissent parfois enti\u00e8rement les voitures.\u00a0 Des trains s\u2019arr\u00eatent en pleine campagne pour offrir un premier abri aux automobilistes bloqu\u00e9s. Des enfants et des personnes \u00e2g\u00e9es sont \u00e9vacu\u00e9s vers l\u2019h\u00f4pital de Valence par seulement neuf h\u00e9licopt\u00e8res (alors qu\u2019il en aurait fallu soixante-dix), effectuant jusqu\u2019\u00e0 deux cents voyages au total pendant toute la p\u00e9riode.\u00a0\u00a0<\/p>\n<p>\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/tempete-neige-1970-3.png\" \/><\/p>\n<p><em><strong>Un automobiliste abandonne sa voiture sur l&#8217;autoroute A7, en pleine temp\u00eate de neige, le 30 d\u00e9cembre 1970 &#8211; meteo-paris.com<\/strong><\/em><\/p>\n<p>\u00a0<\/p>\n<h2>L&#8217;autoroute A7 se transforme en un immense cimeti\u00e8re de voitures abandonn\u00e9es !\u00a0<\/h2>\n<p>\u00a0<\/p>\n<p>Sur l\u2019A7, la circulation n\u2019est rendue possible qu\u2019en convois, avec engins de d\u00e9blaiement en t\u00eate et v\u00e9hicules de gendarmerie en soutien, afin de g\u00e9rer pannes et blocages. C\u00f4t\u00e9 RN 7, la situation est tr\u00e8s d\u00e9grad\u00e9e : si elle est annonc\u00e9e \u00ab \u00e0 peu pr\u00e8s d\u00e9gag\u00e9e au sud de Mont\u00e9limar \u00bb, les autorit\u00e9s redoutent constamment qu\u2019un v\u00e9hicule en travers (d\u00e9rapage) ne rebloque tout. Surtout, entre Loriol et le nord de Mont\u00e9limar (environ 25 km), la route reste \u00ab mauvaise \u00bb, \u00e0 cause de la neige et des v\u00e9hicules abandonn\u00e9s (dont de nombreux poids lourds). Le travail ne consiste pas seulement \u00e0 d\u00e9neiger : il faut aussi enlever les v\u00e9hicules qui obstruent les voies, notamment des camions rest\u00e9s au milieu de la chauss\u00e9e.<\/p>\n<p>\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/tempete-neige-1970-11.png\" \/><\/p>\n<p><em><strong>L&#8217;autoroute A7 transform\u00e9e en cimeti\u00e8re \u00e0 v\u00e9hicules abandonn\u00e9s le 31 d\u00e9cembre 1970 &#8211; meteo-paris.com<\/strong><\/em><\/p>\n<p>\u00a0<\/p>\n<h2>Valence et Mont\u00e9limar deviennent des villes refuges\u00a0<\/h2>\n<p>\u00a0<\/p>\n<p>Aux deux extr\u00e9mit\u00e9s de l\u2019autoroute d\u00e9vast\u00e9e, Valence et Mont\u00e9limar deviennent des villes refuges. Six mille personnes s\u2019entassent dans des presbyt\u00e8res, lyc\u00e9es, entrep\u00f4ts, casernes et un centre d\u2019h\u00e9bergement de Mont\u00e9limar (en partie priv\u00e9 d\u2019\u00e9lectricit\u00e9).\u00a0\u00a0Sous le poids de la neige, une caserne s\u2019effondre, causant la mort de deux personnes. \u00c0 Valence, les vivres s\u2019\u00e9puisent rapidement, obligeant \u00e0 recourir au rationnement (comme durant la seconde guerre mondiale).\u00a0\u00a0Dans les campagnes, le b\u00e9tail est \u00e9galement ravitaill\u00e9 par les airs : trente-cinq tonnes de nourriture sont distribu\u00e9es quotidiennement. Une pol\u00e9mique \u00e9clate suite \u00e0 cette \u00ab d\u00e9sorganisation \u00e0 la fran\u00e7aise \u00bb, et des automobilistes exc\u00e9d\u00e9s occupent le p\u00e9age autoroutier de Boll\u00e8ne.\u00a0\u00a0<\/p>\n<p>\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/tempete-neige-1970-4.png\" \/><\/p>\n<p><strong><em>Les secours s&#8217;organisent aupr\u00e8s des naufrag\u00e9s de l&#8217;autoroute A7 et de la nationale 7 entre Mont\u00e9limar et Valence, le 31 d\u00e9cembre 1970 &#8211; meteo-paris.com<\/em><\/strong><\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<h2>Les trois-quarts de la France sous la neige et les temp\u00e9ratures polaires !\u00a0<\/h2>\n<p>\u00a0<\/p>\n<p>Le matin du 30 d\u00e9cembre 1970, les trois-quarts de la France sont sous la neige, et la r\u00e9gion Rh\u00f4ne-Alpes, l\u2019Auvergne ainsi que la basse vall\u00e9e du Rh\u00f4ne sont coup\u00e9es du reste du pays. Dans la Dr\u00f4me et l\u2019Ard\u00e8che, 66 villages et hameaux sont isol\u00e9s depuis plusieurs semaines.\u00a0<\/p>\n<p>Certains sont bloqu\u00e9s sous des cong\u00e8res de 4 \u00e0 6 m\u00e8tres et sont ravitaill\u00e9s par les chasseurs alpins, ou par h\u00e9licopt\u00e8res lorsque cela est possible.\u00a0\u00a0<\/p>\n<p>Par ailleurs, 600 mineurs d\u2019Al\u00e8s, dans le Gard, sont bloqu\u00e9s au fond d\u2019un puits du bassin houiller des C\u00e9vennes suite \u00e0 une panne d\u2019\u00e9lectricit\u00e9 qui a immobilis\u00e9 l\u2019ascenseur.\u00a0<\/p>\n<p>On mesure jusqu&#8217;\u00e0 70 cm de neige \u00e0 Valence, 60 cm \u00e0 Mont\u00e9limar, 50 cm \u00e0 Saint-\u00c9tienne, 45 cm \u00e0 Grenoble, 31 cm \u00e0 Lyon et 27 cm \u00e0 Clermont-Ferrand.<\/p>\n<p>\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/tempete-neige-1970-5.png\" \/><\/p>\n<p><em><strong>Des villages isol\u00e9s du monde sous une couche de neige atteignant parfois 1 m d&#8217;\u00e9paisseur en plaine, dans la Dr\u00f4me, au d\u00e9but du mois de janvier 1971 &#8211; meteo-paris.com<\/strong><\/em><\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<h2>Jusqu&#8217;\u00e0 -35\u00b0C en montagne et -29\u00b0C en plaine !\u00a0<\/h2>\n<p>\u00a0<\/p>\n<p>Cette vague de froid qui a d\u00e9but\u00e9 le 23 d\u00e9cembre 1970 se poursuit jusqu\u2019au 6 janvier 1971 avec des temp\u00e9ratures atteignant parfois des niveaux extr\u00eamement bas. On enregistre par exemple des minimums de -35\u00b0C \u00e0 St-Etienne-de-Devoluy (Hautes-Alpes), -34\u00b0C \u00e0 Mouthe (25), -29\u00b0C \u00e0 Sarrebourg, \u201327\u00b0C \u00e0 Grenoble et \u00e0 Vichy, -26\u00b0C \u00e0 Saint-\u00c9tienne, -25\u00b0C \u00e0 Romilly-sur-Seine (Aube) et Rodez,\u00a0 -23\u00b0C \u00e0 Strasbourg et Clermont-Ferrand, -22\u00b0C \u00e0 Lyon ou \u2013 20\u00b0C \u00e0 Nancy.<\/p>\n<p>Une partie de la Sa\u00f4ne commence \u00e0 geler (notamment vers M\u00e2con), le Rh\u00f4ne est gel\u00e9 \u00e0 Pont-St-esprit et la Garonne, \u00e0 Toulouse\u2026 Il faut noter qu\u2019au moment o\u00f9 la neige bloque la vall\u00e9e du Rh\u00f4ne, les skieurs des stations alpines s\u2019arrachent les cheveux devant de vastes espaces verts\u2026!<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>A lire \u00e9galement :<\/p>\n<p>&gt;&gt;&gt; <a href=\"https:\/\/www.meteo-villes.com\/chronique\/annee\/1970\">Chronique m\u00e9t\u00e9o de l&#8217;ann\u00e9e 1970<\/a><\/p>\n<p>&gt;&gt;&gt; <a href=\"https:\/\/www.meteo-villes.com\/chronique\/annee\/1971\">Chronique m\u00e9t\u00e9o de l&#8217;ann\u00e9e 1971<\/a><\/p>\n<p>&gt;&gt;&gt;\u00a0<a href=\"https:\/\/www.meteo-villes.com\/actualites\/1890-1891-un-hiver-desormais-impossible-aujourd-hui\">1890-1891 : un hiver d\u00e9sormais impossible aujourd&#8217;hui ?<\/a><\/p>\n<p>&gt;&gt;&gt;\u00a0<a href=\"https:\/\/www.meteo-villes.com\/actualites\/nouvelle-offensive-du-froid-et-de-la-neige-pour-nouvel-an-et-le-mois-de-janvier\">Nouvelle offensive du froid et de la neige pour le Nouvel An et le mois de janvier ?<\/a><\/p>\n<p>&gt;&gt;&gt;\u00a0<a href=\"https:\/\/www.meteo-villes.com\/actualites\/25-decembre-1962-noel-le-plus-glacial-du-siecle\">25 d\u00e9cembre 1962 : No\u00ebl le plus glacial du si\u00e8cle !<\/a><\/p>\n<p>\u00a0<\/p>\n<p>Auteur : Guillaume S\u00e9chet<\/p>\n<p>\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>M\u00e9t\u00e9o\u00a0 Republi\u00e9 via Innoreader Lire la Suite Le 29 d\u00e9cembre 1970, la pire temp\u00eate de neige depuis 1917 paralyse le nord des r\u00e9gions M\u00e9diterran\u00e9ennes.\u00a0 Alors [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6460,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[6],"tags":[],"class_list":["post-6459","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-externes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>le 28 d\u00e9cembre 2025 \u00e0 21h15 Le chaos de la temp\u00eate de neige de fin d\u00e9cembre 1970 sur l\u2019axe Valence-Mont\u00e9limar - Meteo Sain-Bel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/meteo-sain-bel.fr\/wp\/blog\/le-28-decembre-2025-a-21h15-le-chaos-de-la-tempete-de-neige-de-fin-decembre-1970-sur-laxe-valence-montelimar\/\" \/>\n<meta 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