{"id":408,"date":"2022-12-15T18:16:09","date_gmt":"2022-12-15T17:16:09","guid":{"rendered":"http:\/\/pont-dain.meteo01.fr\/mag\/?p=408"},"modified":"2022-12-30T18:18:56","modified_gmt":"2022-12-30T17:18:56","slug":"decembre-1990-une-neige-record","status":"publish","type":"post","link":"http:\/\/pont-dain.meteo01.fr\/mag\/2022\/12\/15\/decembre-1990-une-neige-record\/","title":{"rendered":"D\u00e9cembre 1990 : une neige record !."},"content":{"rendered":"<p>Ce mois de d\u00e9cembre 1990 \u00e0 Pont d&rsquo; Ain et d&rsquo; ailleurs dans tout notre d\u00e9partement restera comme m\u00e9morable par l&rsquo; \u00e9v\u00e8nement d&rsquo; un \u00e9pisode neigeux exceptionnel qui a caus\u00e9 de nombreuses perturbations ( un dossier sp\u00e9cial sera r\u00e9alis\u00e9 ult\u00e9rieurement \u00e0 ce sujet), lors de la premi\u00e8re d\u00e9cade. Outre cela on retiendra les temp\u00e9ratures bien basses que nous avons connu. La moyenne minimale est proche des -3\u00b0 avec pas moins de 27 jours de gel\u00e9es matinales ! . La moyenne maximale n&rsquo; atteint m\u00eame pas les 2\u00b0. Le d\u00e9but du mois est froid et sec. C&rsquo; est un temps calme et anticyclonique qui domine Les brouillards givrants sont rares et les gel\u00e9es assez fortes, jusqu&rsquo; \u00e0 -7\u00b0 le jeudi 6 au matin. En journ\u00e9e le r\u00e9chauffement est peu important. On n&rsquo; atteint gu\u00e8re la barre des 2 \u00e0 4\u00b0. Le brouillard givrant du 3 nous laissera \u00e0 -2\u00b0 en maximale. \u00a0Le temps va commencer \u00e0 basculer en soir\u00e9e du 8. Un front froid ondulant li\u00e9 \u00e0 une d\u00e9pression sur l&rsquo; Angleterre va toucher notre r\u00e9gion. Ensuite une d\u00e9pression viendra se centrer sur la France pendant quelques jours. Elle sera suivie d &lsquo; un front neigeux en provenance du nord. D\u00e8s le soir du 8 la neige commence \u00e0 tomber en montagne. En plaine c&rsquo; est encore de la pluie sous un vent de sud mod\u00e9r\u00e9. C&rsquo; est dans la nuit du 8 au 9 que le temps en plaine va franchement se d\u00e9grader. La neige ainsi au petit matin du dimanche 9, \u00e0 la grande surprise a recouvert toute la r\u00e9gion de Pont d&rsquo; Ain. La couche \u00e0 8h atteint d\u00e9j\u00e0 pr\u00e8s de 15 cm. Cette neige tombe de fa\u00e7on violente. Elle est souvent lourde et aura des cons\u00e9quences sur la v\u00e9g\u00e9tation. De nombreux arbustes plieront sous son poids et des branches se casseront parfois. Toute la journ\u00e9e de dimanche sous un mercure restant \u00e0 0 sera marqu\u00e9e par ce temps hivernal. La couche ne cessera d&rsquo; augmenter pour d\u00e9j\u00e0 atteindre en soir\u00e9e dans notre commune plus de 30 cm. Le lundi 10 la situation ne s&rsquo; am\u00e9liore gu\u00e8re. La neige continue \u00e0 tomber. 8 cm au bas mot se rajouteront. C&rsquo; est cette fois-ci une neige un peu plus fine. Le mercure ne bougera pas d &lsquo;un iota, 0\u00b0 le matin comme en journ\u00e9e. Mardi 11 la d\u00e9pression se comble et nous conservons un temps gris et des temp\u00e9ratures n\u00e9gatives en journ\u00e9e, mais la neige enfin a cess\u00e9 de tomber alors que les jardin croulent sous pr\u00e8s de 50 cm de poudreuse ! Du jamais vu au bord de l&rsquo; Ain depuis des d\u00e9cennies d&rsquo; apr\u00e8s la m\u00e9moire des plus anciens habitants. Il y avait bien eu un \u00e9pisode neigeux intense autour de la fin des ann\u00e9es 70 d\u00e9but des ann\u00e9es 80 mais de moindre intensit\u00e9. Jeudi 13 la situation se d\u00e9grade de nouveau avec la perturbation descendant du nord de la France. Pr\u00e8s de 25 cm tomberont sur cette journ\u00e9e. Le cumul dans les jardins atteint les 70 cm. Comme toutes ces chutes de neige se sont tass\u00e9es au fil du temps, on peut tabler probablement sur pr\u00e8s de 80 cm tomb\u00e9s en 4 jours. C&rsquo; est v\u00e9ritablement exceptionnel et les records sont battus. La commune comme toutes les voisines tentent de d\u00e9gager ses voies d&rsquo; acc\u00e8s. On sort les tractopelles pour d\u00e9blayer au plus vite toutes les rues o\u00f9 des monticules de neige se sont accumul\u00e9s. Pour ce premier mois de l&rsquo; hiver 1990-1991 on peut dire qu&rsquo; il tient toutes ses promesses. La nationale 75 est bien d\u00e9licate \u00e0 parcourir. Le soir la neige s&rsquo; estompe enfin laissant de multiples probl\u00e8mes comme des coupures \u00e9lectriques fr\u00e9quentes. Le vendredi 14 marquera le grand retour du soleil, un soleil que l&rsquo; on n&rsquo; avait plus vu ici depuis le 7 d\u00e9cembre.<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Ce mois de d\u00e9cembre 1990 \u00e0 Pont d&rsquo; Ain et d&rsquo; ailleurs dans tout notre d\u00e9partement restera comme m\u00e9morable par l&rsquo; \u00e9v\u00e8nement d&rsquo; un \u00e9pisode neigeux exceptionnel qui a caus\u00e9 de nombreuses perturbations ( un <a class=\"mh-excerpt-more\" href=\"http:\/\/pont-dain.meteo01.fr\/mag\/2022\/12\/15\/decembre-1990-une-neige-record\/\" title=\"D\u00e9cembre 1990 : une neige record !.\">[Lire la suite]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":409,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[43],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>D\u00e9cembre 1990 : une neige record !. - 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