{"id":146021,"date":"2025-06-02T09:05:10","date_gmt":"2025-06-02T09:05:10","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/146021\/"},"modified":"2025-06-02T09:05:10","modified_gmt":"2025-06-02T09:05:10","slug":"video-une-mini-tornade-apercue-a-grenoble-vraiment","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/146021\/","title":{"rendered":"Vid\u00e9o. Une \u201cmini-tornade\u201d aper\u00e7ue \u00e0 Grenoble, vraiment ?"},"content":{"rendered":"<p>C\u2019est un ph\u00e9nom\u00e8ne m\u00e9t\u00e9orologique inhabituel qui s\u2019est d\u00e9roul\u00e9 dans l\u2019apr\u00e8s-midi du dimanche 1er juin, \u00e0\u00a0Grenoble. En effet, des passants, qui profitaient du soleil\u00a0et de l&rsquo;absence de vent, ont d\u00e9cid\u00e9 de se promener aux alentours du Stade des Alpes.<\/p>\n<p>C&rsquo;est \u00e0 ce moment-l\u00e0 qu&rsquo;ils ont aper\u00e7u une sorte de \u201cmini-tornade\u201d.\u00a0L&rsquo;\u00e9v\u00e9nement n&rsquo;a dur\u00e9 qu&rsquo;une poign\u00e9e de secondes, mais des t\u00e9moins ont quand m\u00eame eu le temps de filmer la sc\u00e8ne. Aucun d\u00e9g\u00e2t n&rsquo;a \u00e9t\u00e9 constat\u00e9.<\/p>\n<p>  Une \u201cmini-tornade\u201d, vraiment ?<\/p>\n<p>Ce ph\u00e9nom\u00e8ne peut-il pour autant m\u00e9riter le qualificatif de \u201cmini-tornade\u201d\u00a0? Eh bien non, car les mini-tornades&#8230; n&rsquo;existent tout simplement pas. Ce terme \u00ab\u00a0ne correspond pas \u00e0 un ph\u00e9nom\u00e8ne m\u00e9t\u00e9orologique\u00a0\u00bb,\u00a0explique <a href=\"https:\/\/meteofrance.com\/actualites-et-dossiers\/comprendre-la-meteo\/tornades-et-trombes\" target=\"_blank\" rel=\"nofollow noopener\">M\u00e9t\u00e9o France<\/a> sur son site internet.\u00a0<\/p>\n<p>En l&rsquo;occurrence, ce qui s&rsquo;est d\u00e9roul\u00e9 \u00e0 Grenoble ce dimanche apr\u00e8s-midi ressemble plus \u00e0 un tourbillon de poussi\u00e8re.<\/p>\n<p>D&rsquo;apr\u00e8s <a href=\"https:\/\/cloudatlas.wmo.int\/fr\/dust-whirl-or-sand-whirl.html\" target=\"_blank\" rel=\"nofollow noopener\">l&rsquo;Organisation m\u00e9t\u00e9orologique mondiale<\/a>, ce ph\u00e9nom\u00e8ne se d\u00e9finit\u00a0comme un \u00ab ensemble de particules de poussi\u00e8re ou de sable, accompagn\u00e9es parfois de petits d\u00e9bris, soulev\u00e9es du sol sous forme d&rsquo;une colonne tourbillonnante de hauteur variable, \u00e0 l&rsquo;axe sensiblement vertical de faible diam\u00e8tre\u00a0\u00bb. Un tourbillon de poussi\u00e8re peut survenir\u00a0 \u00ab\u00a0lorsque la masse d&rsquo;air situ\u00e9e au voisinage du sol est tr\u00e8s instable, ce qui peut \u00eatre le cas par exemple si elle se trouve au-dessus d&rsquo;un sol surchauff\u00e9 par le soleil\u00a0\u00bb.<\/p>\n","protected":false},"excerpt":{"rendered":"C\u2019est un ph\u00e9nom\u00e8ne m\u00e9t\u00e9orologique inhabituel qui s\u2019est d\u00e9roul\u00e9 dans l\u2019apr\u00e8s-midi du dimanche 1er juin, \u00e0\u00a0Grenoble. En effet, des&hellip;\n","protected":false},"author":2,"featured_media":146022,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9566],"tags":[1111,11,2430,112,1777,674,107,1011,27,2731,1757,108,8423,12,25],"class_list":{"0":"post-146021","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-grenoble","8":"tag-actu","9":"tag-actualites","10":"tag-auvergne-rhone-alpes","11":"tag-edition-grenoble-agglomeration","12":"tag-eu","13":"tag-europe","14":"tag-fil-info","15":"tag-fr","16":"tag-france","17":"tag-grenoble","18":"tag-insolite","19":"tag-isere","20":"tag-meteorologie-climat","21":"tag-news","22":"tag-republique-francaise"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@fr\/114612975960436928","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/146021","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/comments?post=146021"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/posts\/146021\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media\/146022"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/media?parent=146021"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/categories?post=146021"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/fr\/wp-json\/wp\/v2\/tags?post=146021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}