{"id":2600,"date":"2026-02-05T07:17:00","date_gmt":"2026-02-05T12:17:00","guid":{"rendered":"https:\/\/yogannmagazine.com\/?p=2600"},"modified":"2026-02-05T11:53:52","modified_gmt":"2026-02-05T16:53:52","slug":"un-nouveau-front-froid-attendu-sur-haiti-tandis-quun-flux-transpolaire-provoque-un-froid-historique-en-amerique-du-nord","status":"publish","type":"post","link":"https:\/\/yogannmagazine.com\/ht\/05\/un-nouveau-front-froid-attendu-sur-haiti-tandis-quun-flux-transpolaire-provoque-un-froid-historique-en-amerique-du-nord\/","title":{"rendered":"Un nouveau front froid attendu sur Ha\u00efti, tandis qu\u2019un flux transpolaire provoque un froid historique en Am\u00e9rique du Nord"},"content":{"rendered":"<p class=\"p3 wp-block-paragraph\">Un autre front froid affectera l\u2019\u00eele d\u2019Ha\u00efti entre jeudi soir et vendredi matin. Ce syst\u00e8me entra\u00eenera une baisse temporaire des temp\u00e9ratures, notamment en soir\u00e9e et durant la nuit, avec une sensation de fra\u00eecheur plus marqu\u00e9e sur les zones d\u2019altitude et les r\u00e9gions expos\u00e9es au vent.<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Si cet \u00e9pisode reste mod\u00e9r\u00e9 pour la Cara\u00efbe, il s\u2019inscrit toutefois dans un contexte atmosph\u00e9rique beaucoup plus spectaculaire \u00e0 l\u2019\u00e9chelle de l\u2019h\u00e9misph\u00e8re nord.<\/p>\n\n\n\n<p class=\"p1 wp-block-paragraph\">Un froid sans pr\u00e9c\u00e9dent aux \u00c9tats-Unis<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Ce week-end, le nord-est et le centre du littoral atlantique des \u00c9tats-Unis feront face \u00e0 une vague de froid d\u2019une intensit\u00e9 exceptionnelle. Certaines r\u00e9gions pourraient enregistrer des temp\u00e9ratures parmi les plus basses jamais observ\u00e9es \u00e0 cette p\u00e9riode de l\u2019ann\u00e9e.<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">La particularit\u00e9 de cet \u00e9v\u00e9nement r\u00e9side dans l\u2019origine de la masse d\u2019air en cause.<\/p>\n\n\n\n<p class=\"p1 wp-block-paragraph\">Une masse d\u2019air venue de l\u2019Arctique russe<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Contrairement aux vagues de froid habituelles, souvent issues du Canada, l\u2019air qui envahira l\u2019est des \u00c9tats-Unis provient cette fois de l\u2019Arctique russe. Sous l\u2019effet d\u2019une configuration atmosph\u00e9rique bien sp\u00e9cifique, cette masse d\u2019air va traverser le p\u00f4le Nord avant de descendre directement vers l\u2019Am\u00e9rique du Nord.<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Ce long trajet polaire permet \u00e0 l\u2019air de conserver des temp\u00e9ratures extr\u00eamement basses, renfor\u00e7ant ainsi l\u2019intensit\u00e9 du refroidissement observ\u00e9.<\/p>\n\n\n\n<p class=\"p1 wp-block-paragraph\">Le flux transpolaire en cause<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Ce type de circulation atmosph\u00e9rique est connu sous le nom de flux transpolaire. Il se met en place lorsque le courant-jet adopte une trajectoire tr\u00e8s ondul\u00e9e, reliant directement l\u2019Eurasie arctique et l\u2019Am\u00e9rique du Nord.<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Le flux transpolaire transporte un air particuli\u00e8rement froid, sec et dense. Peu modifi\u00e9 durant son parcours, cet air conserve toute sa puissance jusqu\u2019\u00e0 son arriv\u00e9e sur les r\u00e9gions temp\u00e9r\u00e9es, provoquant des chutes brutales de temp\u00e9rature.<\/p>\n\n\n\n<p class=\"p1 wp-block-paragraph\">Quels liens avec la situation en Ha\u00efti ?<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">M\u00eame si Ha\u00efti ne subira pas directement ce froid extr\u00eame, ces grandes descentes d\u2019air polaire influencent la circulation atmosph\u00e9rique \u00e0 l\u2019\u00e9chelle r\u00e9gionale. Elles favorisent notamment le passage de fronts froids jusque dans la Cara\u00efbe, comme celui attendu sur l\u2019\u00eele entre jeudi soir et vendredi matin.<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Ces fronts apportent g\u00e9n\u00e9ralement :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>une baisse temporaire des temp\u00e9ratures, <\/li>\n\n\n\n<li>des vents parfois plus soutenus, <\/li>\n\n\n\n<li>une mer plus agit\u00e9e, <\/li>\n\n\n\n<li>et un air plus sec apr\u00e8s leur passage.<\/li>\n<\/ul>\n\n\n\n<p class=\"p1 wp-block-paragraph\">Un ph\u00e9nom\u00e8ne r\u00e9v\u00e9lateur de la dynamique climatique<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Cet \u00e9pisode rappelle que les conditions m\u00e9t\u00e9orologiques locales sont souvent li\u00e9es \u00e0 des m\u00e9canismes se produisant \u00e0 des milliers de kilom\u00e8tres. Les \u00e9changes entre les r\u00e9gions polaires et les tropiques jouent un r\u00f4le essentiel dans l\u2019\u00e9quilibre atmosph\u00e9rique global.<\/p>\n\n\n\n<p class=\"p3 wp-block-paragraph\">Pour Ha\u00efti, ces situations sont surtout synonymes de fra\u00eecheur passag\u00e8re. Pour l\u2019Am\u00e9rique du Nord, elles peuvent devenir historiques.<\/p>","protected":false},"excerpt":{"rendered":"<p>Un autre front froid affectera l\u2019\u00eele d\u2019Ha\u00efti entre jeudi soir et vendredi matin. Ce syst\u00e8me entra\u00eenera une baisse temporaire des temp\u00e9ratures, notamment en soir\u00e9e et durant la nuit, avec une sensation de fra\u00eecheur plus marqu\u00e9e sur les zones d\u2019altitude et les r\u00e9gions expos\u00e9es au vent.<\/p>","protected":false},"author":1,"featured_media":2599,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowqciiDA:productID":"","_gspb_post_css":"","_crdt_document":"","_uag_custom_page_level_css":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Un nouveau front froid attendu sur Ha\u00efti, tandis qu\u2019un flux transpolaire provoque un froid historique en Am\u00e9rique du Nord","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[7],"tags":[191,192,190],"class_list":["post-2600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-flux-transpolaire","tag-froid","tag-meteo"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289.jpg","uagb_featured_image_src":{"full":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289.jpg",720,622,false],"thumbnail":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289-150x150.jpg",150,150,true],"medium":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289-300x259.jpg",300,259,true],"medium_large":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289.jpg",720,622,false],"large":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289.jpg",720,622,false],"1536x1536":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289.jpg",720,622,false],"2048x2048":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289.jpg",720,622,false],"trp-custom-language-flag":["https:\/\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3289-14x12.jpg",14,12,true]},"uagb_author_info":{"display_name":"Jouvens Guelord","author_link":"https:\/\/yogannmagazine.com\/ht\/author\/yogannmag\/"},"uagb_comment_info":0,"uagb_excerpt":"Un autre front froid affectera l\u2019\u00eele d\u2019Ha\u00efti entre jeudi soir et vendredi matin. Ce syst\u00e8me entra\u00eenera une baisse temporaire des temp\u00e9ratures, notamment en soir\u00e9e et durant la nuit, avec une sensation de fra\u00eecheur plus marqu\u00e9e sur les zones d\u2019altitude et les r\u00e9gions expos\u00e9es au vent.","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":2843,"url":"https:\/\/yogannmagazine.com\/ht\/05\/haiti-se-qualifie-pour-le-championnat-u-20-de-la-concacaf-une-nouvelle-page-despoir-pour-le-football-national\/","url_meta":{"origin":2600,"position":0},"title":"&#8220;Ha\u00efti se qualifie pour le Championnat U-20 de la CONCACAF : une nouvelle page d\u2019espoir pour le football national&#8221;","author":"Destin\u00e9 Jeff Stanley","date":"March 5, 2026","format":false,"excerpt":"La s\u00e9lection nationale ha\u00eftienne des moins de 20 ans a valid\u00e9 son billet pour le Championnat U-20 de la CONCACAF, confirmant ainsi la progression du football jeune en Ha\u00efti. Cette qualification repr\u00e9sente bien plus qu\u2019un simple succ\u00e8s sportif : elle symbolise l\u2019espoir d\u2019une nouvelle g\u00e9n\u00e9ration pr\u00eate \u00e0 porter haut les\u2026","rel":"","context":"In &quot;Actualit\u00e9s&quot;","block_context":{"text":"Actualit\u00e9s","link":"https:\/\/yogannmagazine.com\/ht\/category\/actualites\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4010.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4010.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4010.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4010.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2542,"url":"https:\/\/yogannmagazine.com\/ht\/04\/intervenir-en-haiti-sans-fermer-le-robinet-des-armes-une-impasse-annoncee\/","url_meta":{"origin":2600,"position":1},"title":"Intervenir en Ha\u00efti sans fermer le robinet des armes : une impasse annonc\u00e9e","author":"Alexandre Jackson","date":"February 4, 2026","format":false,"excerpt":"Peut-on parler d\u2019une menace pour les \u00c9tats-Unis sans reconna\u00eetre que les armes qui alimentent cette menace transitent largement par leur propre territoire ?","rel":"","context":"In &quot;Actualit\u00e9s&quot;","block_context":{"text":"Actualit\u00e9s","link":"https:\/\/yogannmagazine.com\/ht\/category\/actualites\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3288.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3288.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3288.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3288.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2947,"url":"https:\/\/yogannmagazine.com\/ht\/16\/expulsion-de-reginald-boulos-un-signal-fort-des-etats-unis-et-des-questions-pour-la-justice-haitienne\/","url_meta":{"origin":2600,"position":2},"title":"Expulsion de Reginald Boulos : un signal fort des \u00c9tats-Unis et des questions pour la justice ha\u00eftienne","author":"Jouvens Guelord","date":"April 16, 2026","format":false,"excerpt":"Mais au-del\u00e0 de l\u2019annonce, une question centrale se pose : que pourrait-il arriver \u00e0 Reginald Boulos face \u00e0 la justice ha\u00eftienne ? Il est important de rappeler qu\u2019une expulsion des \u00c9tats-Unis est avant tout une mesure administrative, et non une condamnation judiciaire. Elle peut \u00eatre motiv\u00e9e par des consid\u00e9rations de\u2026","rel":"","context":"In &quot;Actualit\u00e9s&quot;","block_context":{"text":"Actualit\u00e9s","link":"https:\/\/yogannmagazine.com\/ht\/category\/actualites\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/04\/img_4783.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/04\/img_4783.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/04\/img_4783.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/04\/img_4783.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2786,"url":"https:\/\/yogannmagazine.com\/ht\/28\/escalade-militaire-au-moyen-orient-frappes-croisees-entre-les-etats-unis-israel-et-liran\/","url_meta":{"origin":2600,"position":3},"title":"Escalade militaire au Moyen-Orient : frappes crois\u00e9es entre les \u00c9tats-Unis, Isra\u00ebl et l\u2019Iran.","author":"Alexandre Jackson","date":"February 28, 2026","format":false,"excerpt":"Apr\u00e8s des frappes attribu\u00e9es aux \u00c9tats-Unis et \u00e0 Isra\u00ebl contre des positions strat\u00e9giques en Iran.\u2028D'apr\u00e8s plusieurs sources s\u00e9curitaires r\u00e9gionales, ces op\u00e9rations auraient vis\u00e9 des installations consid\u00e9r\u00e9es comme li\u00e9es au programme militaire iranien ainsi qu\u2019\u00e0 des infrastructures logistiques soup\u00e7onn\u00e9es de soutenir des groupes alli\u00e9s de T\u00e9h\u00e9ran dans la r\u00e9gion.","rel":"","context":"In &quot;Actualit\u00e9s&quot;","block_context":{"text":"Actualit\u00e9s","link":"https:\/\/yogannmagazine.com\/ht\/category\/actualites\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3951-1.jpg?fit=960%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3951-1.jpg?fit=960%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3951-1.jpg?fit=960%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/02\/img_3951-1.jpg?fit=960%2C1200&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":335,"url":"https:\/\/yogannmagazine.com\/ht\/26\/dimitri-vorbe-arrete-aux-etats-unis-entre-symbole-et-avertissement\/","url_meta":{"origin":2600,"position":4},"title":"Dimitri Vorbe arr\u00eat\u00e9 aux \u00c9tats-Unis : entre symbole et avertissement","author":"Jouvens Guelord","date":"September 26, 2025","format":false,"excerpt":"Le nom de Dimitri Vorbe circule depuis longtemps dans les conversations ha\u00eftiennes, souvent accompagn\u00e9 de soup\u00e7ons, de pol\u00e9miques et de pouvoir. Le 23 septembre dernier, c\u2019est aux \u00c9tats-Unis, loin de Port-au-Prince, qu\u2019il a \u00e9t\u00e9 rattrap\u00e9 par la justice : arr\u00eat\u00e9 par des agents de l\u2019immigration am\u00e9ricaine, il est depuis d\u00e9tenu\u2026","rel":"","context":"In &quot;Actualit\u00e9s&quot;","block_context":{"text":"Actualit\u00e9s","link":"https:\/\/yogannmagazine.com\/ht\/category\/actualites\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2025\/11\/img_0451.jpg?fit=1200%2C867&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2025\/11\/img_0451.jpg?fit=1200%2C867&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2025\/11\/img_0451.jpg?fit=1200%2C867&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2025\/11\/img_0451.jpg?fit=1200%2C867&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2025\/11\/img_0451.jpg?fit=1200%2C867&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":2841,"url":"https:\/\/yogannmagazine.com\/ht\/05\/l-espagne-refuse-aux-etats-unis-lusage-de-son-territoire-pour-frapper-liran\/","url_meta":{"origin":2600,"position":5},"title":"&#8221; L \u2019Espagne refuse aux \u00c9tats-Unis l\u2019usage de son territoire pour frapper l\u2019Iran&#8221;","author":"Destin\u00e9 Jeff Stanley","date":"March 5, 2026","format":false,"excerpt":"Le gouvernement espagnol a officiellement interdit aux \u00c9tats-Unis l\u2019utilisation de bases militaires situ\u00e9es sur le sol espagnol pour des op\u00e9rations offensives contre l\u2019Iran, dans un contexte de conflit croissant au Moyen-Orient.","rel":"","context":"In &quot;Actualit\u00e9s&quot;","block_context":{"text":"Actualit\u00e9s","link":"https:\/\/yogannmagazine.com\/ht\/category\/actualites\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4009.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4009.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4009.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/yogannmagazine.com\/wp-content\/uploads\/2026\/03\/img_4009.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_shortlink":"https:\/\/wp.me\/pcBeFB-FW","brizy_media":[],"_links":{"self":[{"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/posts\/2600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/comments?post=2600"}],"version-history":[{"count":4,"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/posts\/2600\/revisions"}],"predecessor-version":[{"id":2610,"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/posts\/2600\/revisions\/2610"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/media\/2599"}],"wp:attachment":[{"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/media?parent=2600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/categories?post=2600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yogannmagazine.com\/ht\/wp-json\/wp\/v2\/tags?post=2600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}