{"id":525230,"date":"2026-01-18T13:37:14","date_gmt":"2026-01-18T13:37:14","guid":{"rendered":"https:\/\/www.europesays.com\/us\/525230\/"},"modified":"2026-01-18T13:37:14","modified_gmt":"2026-01-18T13:37:14","slug":"major-polar-vortex-disruption-brings-arctic-surges-across-north-america-and-europe-through-january-and-early-february","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/us\/525230\/","title":{"rendered":"Major polar vortex disruption brings Arctic surges across North America and Europe through January and early February"},"content":{"rendered":"

A major disruption of the polar vortex<\/a> has begun, while a stronger Arctic outbreak is forecast across North America and Europe during the final week of January and into early February.<\/p>\n

Forecast models suggest that the vortex has become elongated and displaced from the pole following a sudden stratospheric warming (SSW)<\/a>.<\/p>\n

Extended forecasts from the ECMWF and GFS models show downward propagation of stratospheric anomalies that could favor high-latitude blocking and southward transport of Arctic air. This pattern supports an increased probability of below-normal temperatures across large parts of the Northern Hemisphere later in the month.<\/p>\n

The coldest air will first hit western and central Canada before spreading into the northern and central United States toward the end of January. Below-normal temperatures and a high probability of snow are forecast across the Great Lakes and northeastern regions as Arctic air interacts with Atlantic moisture, according to Severe Weather Europe<\/a>.<\/p>\n

Much of the eastern U.S., including the Midwest, Southeast, and Northeast, will experience an Arctic outbreak. The Climate Prediction Center\u2019s<\/a> extended-range temperature outlook shows a high probability of a prolonged cold phase lasting into early February if the upper-level blocking remains in place.<\/p>\n

\u201cAn Arctic cold front will bring below-average temperatures to the Plains beginning tonight. High temperatures in the teens and single digits over portions of the Northern\/Central Plains and Upper Midwest will be 20-30 degrees below average on Saturday. This frigid air mass will spread eastward into the Midwest and East Coast Saturday night into Sunday,\u201d said the National Weather Service (NWS)<\/a> on Friday.<\/p>\n

New numerical forecast models suggest this current event will be followed by a split in the vortex\u2019s core around January 25<\/a>. The two halves of the core will drive an Arctic surge across Europe and North America through February.<\/p>\n

Meanwhile, a strong Greenland blocking ridge is forecast to drive Arctic air into Europe during this period. ECMWF forecasts show a high probability of below-average temperatures across northern and central Europe, including the United Kingdom, France, Germany, and parts of Eastern Europe. <\/p>\n

Colder conditions are expected across the United Kingdom late in January and early in February, with an increasing chance of snow in some regions as northerly flow intensifies.<\/p>\n","protected":false},"excerpt":{"rendered":"A major disruption of the polar vortex has begun, while a stronger Arctic outbreak is forecast across North…\n","protected":false},"author":3,"featured_media":525231,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[2147,233356,746,440,44884,176176,233357,159,67,586,132,68,164513],"class_list":{"0":"post-525230","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-environment","8":"tag-canada","9":"tag-canada-weather","10":"tag-environment","11":"tag-europe","12":"tag-europe-weather","13":"tag-polar-vortex","14":"tag-polar-vortex-weakening","15":"tag-science","16":"tag-united-states","17":"tag-united-states-of-america","18":"tag-unitedstates","19":"tag-us","20":"tag-us-weather"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@us\/115916376786613284","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/525230","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/comments?post=525230"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/posts\/525230\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media\/525231"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/media?parent=525230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/categories?post=525230"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/us\/wp-json\/wp\/v2\/tags?post=525230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}