The frigid conditions are expected to persist through January and into early February.
Ice forms along the Lake Michigan shore as People walk their dogs on a beach, Tuesday, Jan. 20, 2026, in Chicago. WASHINGTON — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United StatesMeteorologists said the eastern two-thirds of the nation is threatened with a winter storm that could rival the damage of a major hurricane and has some origins in an Arctic that is warming from.
They warn that the frigid weather is likely to stick around through the rest of January and into early February, meaning the snow and ice that accumulates will take a long time to melt. Forecasts have the storm, expected to hit starting Friday, stretching from New Mexico to New England and across the Deep South. About 230 million people face temperatures of 20 degrees or colder and around 150 million are likely to be hit by snow and ice, with many Americans getting both, according to the National Weather Service. “I think people are underestimating just how bad it’s going to be,” said former National Oceanic and Atmospheric Administration chief scientist Ryan Maue, now a private meteorologist. The polar vortex, a patch of bitterly cold air that often stays penned up in northern Canada and Alaska, is being elongated by a wave in the upper atmosphere that goes back to a relatively ice-free part of the Arctic and snow-buried Siberia. As the bone-chilling temperatures sweep through the U.S., they’ll meet with moisture from off California and the Gulf of Mexico to set up crippling ice and snow in many areas. Vehicles are driven through whiteout conditions along Lake Michigan Drive during a winter storm warning in Ottawa County, Mich. on Monday, Jan. 19, 2026. A large wave from Lake Michigan sends ice balls into the air as it crashes into the South Pierhead Outer Light at Grand Haven State Park in Grand Haven, Mich., Monday, Jan. 19, 2026. Storm clouds that had brought brief snow flurries begin to clear, Tuesday, Jan. 20, 2026, over Portland, Maine. Ice forms along the Lake Michigan shore as People walk their dogs on a beach, Tuesday, Jan. 20, 2026, in Chicago. Vehicles are driven through whiteout conditions along Lake Michigan Drive during a winter storm warning in Ottawa County, Mich. on Monday, Jan. 19, 2026. “The atmosphere is aligned perfectly that the pattern is locked into this warm Arctic, cold continent,” Maue said. “And it’s not just here for us in North America, but the landmass of Eastern Europe to Siberia is also exceptionally cold. The whole hemisphere has gone into the deep freeze.”Judge orders release of actor Timothy Busfield from jail pending child sex abuse case in New MexicoAs far back as October 2025, changes in the Arctic and low sea ice were setting up conditions for the kind of stretched polar vortex that brings severe winter weather to the U.S., said winter weather expert Judah Cohen, an MIT research scientist. Heavy Siberian snowfall added to the push-and-pull of weather that warps the shape of the normally mostly circular air pattern. Those conditions “kind of loaded the dice a bit” for a stretching of the polar vortex, he said.that found more stretched polar vortex events linked to severe winter weather bursts in the central and eastern U.S. over the past decade. Cohen said part of the reason is that dramatically low sea ice in the Barents and Kara seas in the Arctic helps set up a pattern of waves that end up causing U.S. cold bursts. A warmer Arctic is causing sea ice in that region to shrink faster than other places,The center of the stretched polar vortex will be somewhere above Duluth, Minnesota, by Friday morning, ushering in “long-lasting brutal cold,” Maue said. Temperatures in the North and Midwest will get about as cold as possible, even down to minus 25 or 30 degrees Fahrenheit , Maue said. The average low temperature for the Lower 48 states will dance around 11 or 12 degrees on Saturday, Sunday and Monday, Maue said. Two Great Lakes — Erie and Ontario — may freeze up, which would at least reduce the famed lake-effect snow a bit, Maue said. National Weather Service meteorologist Zack Taylor of the national Weather Prediction Center said most areas east of the Rockies will be impacted by the bitter cold, snow or ice. Treacherous freezing rain could stretch from the southern plains through the mid-South and into the Carolinas, he said. “We’re looking at the potential for impactful ice accumulation. So the kind of ice accumulation that could cause significant or widespread power outages or potentially significant tree damage,” he said. And if you don’t get ice, you could get “another significant swath of heavy snow,” Taylor said. He said it was too early to predict how many inches will fall, but “significant snowfall accumulations” could hit “the Ozarks region, Tennessee and Ohio valleys, the central Appalachians, and then into the mid-Atlantic, and perhaps into the portions of the northeast.” Maue said in the mid-Atlantic around the nation’s capital, there’s a possibility that “you can get two blizzards on top of each other in the next 14 days.” The Associated Press’ climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP’sMagnitude 4.9 earthquake near Palm Desert briefly shakes San Diego CountyFalla una tubería importante en Tijuana y vierte 11.5 millones de galones de aguas residuales diariamente al río TijuanaMagoon Gwath injured, out for Aztecs’ game at Grand CanyonHandpicked by Locals: 5 places to eat, drink and explore in Vista
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Meteorologists blame a stretched polar vortex, moisture, lack of sea ice for dangerous winter blast -WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way that will send much of the United
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Meteorologists blame a stretched polar vortex, moisture, lack of sea ice for dangerous winter blastAs the bone-chilling temperatures sweep through the U.S., they’ll meet with moisture from off California and the Gulf of Mexico to set up crippling ice and snow in many areas.
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