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Extremely cold air from Siberia will send US into deep freeze days before Christmas

A bitter blast of cold air will challenge records that have stood since the 1980s from the northern Rockies to the Southeast, as well as stress energy grids, in the run up to the Christmas holiday.

By Bill Deger, AccuWeather senior meteorologist

Published Dec 14, 2022 2:18 PM EDT | Updated Dec 20, 2022 12:35 PM EDT

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AccuWeather Meteorologist Joe Lundberg says the week of Christmas could bring not only the potential of snow but also frigid temperatures for many parts of the United States.

December has begun on a fairly mild note across a large part of the United States, but a bitter blast of cold air that will flow into North America from Siberia is forecast to plunge the eastern two-thirds of the U.S. into a deep freeze in the days leading up to Christmas.

The cold could challenge records that have stood since the 1980s, as subzero temperatures are expected to grip states from the northern Rockies to the East. AccuWeather long-range forecasters expect the mercury to be up to 40 degrees Fahrenheit below late-December averages in parts of the country.

Siberia is one of the coldest locations on the planet during the winter months. Earlier this week, the mercury plunged to an incredible 78 degrees Fahrenheit below zero (61 degrees Celsius below zero) in the city of Yakutsk on Monday, according to AccuWeather Lead International Forecaster Jason Nicholls.

Good morning! -49C in #Yakutsk, #Russia, at 08:30 am. In some areas of the city, it was down to -53C.

Parabéns à Argentina! For making to the final #WorldcupQatar2022 pic.twitter.com/uIunl0ksr2

— Bolot Bochkarev (@yakutia) December 13, 2022

The intense cold will arrive in North America in two waves, as atmospheric energy moves it along through northeastern parts of Asia and into the northwestern part of North America next week.

"By early next week, the atmospheric energy bringing the cold will dive south out of the Gulf of Alaska and into the Pacific Northwest," said AccuWeather Meteorologist Brandon Buckingham. It will then proceed through the northern Rockies and Upper Midwest from Monday to Tuesday. Low temperatures with this push of frigid air will not quite reach record levels, but low temperatures well below zero will be common in Montana and the Dakotas.

The subsequent push of cold air beginning in the middle of next week will make the first seem like an appetizer to the main course. The northern Rockies and northern Plains will bear the brunt of this bitter blast, which will try to expand south and east through the country in the days before Christmas.

"This could be one of the most extreme air masses that is observed all winter across portions of the north-central U.S.," says Buckingham. "I would not be surprised to see some areas in Montana or North Dakota approach 30 degrees Fahrenheit below zero, which would come close to some of the extreme cold observed back in 1983 and 1989."

Such temperatures would mean some of the coldest air on the planet will be in North America next week, as evidenced by how strong the cold area of high pressure, a bona fide piece of the polar vortex, is forecast to be in the northern Rockies. Some projections indicate the magnitude of the high pressure will be more than 1070 millibars (31.60 inches of mercury) over Montana. If that verifies, it would beat the old high pressure record for the state, which is 1064 millibars (31.42 inches of mercury) set Christmas Eve 1983 in Miles City.

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From there, the bitter cold will expand into the central and southern Plains and Midwest during the second half of the week, with the East getting a taste by the end of the week and next weekend. The cold will have staying power, lasting beyond Christmas.

"While the push of extreme cold will not last as long as the extreme push seen in February 2021, temperatures will likely not begin to rebound until about Dec. 27," said AccuWeather Lead Long-Range Forecaster Paul Pastelok.

That push of bitterly cold air in February 2021 stressed energy grids in the South, most notably in Texas, where there was a deadly, multiday power grid failure. "This round of cold will undoubtedly increase the energy demand across a wide swath of the nation due to the increased demand for heating purposes," added Buckingham.

This time around, Texans will likely find themselves shivering again. Low temperatures later next week are forecast to settle in the teens in Amarillo and in the lower 20s around Dallas. Near-freezing temperatures could also threaten crops in far southern Texas during Hanukkah and around Christmas.

In Chicago, there have been four instances when the mercury failed to reach 10 degrees Fahrenheit on Christmas Day, with the coldest reading coming in 1983 when it was below zero all day. Currently, temperatures are projected to just be in the teens for the holiday in the Windy City.

Records from the cold outbreaks of 1983 and 1989 still set the standard for cold air around Christmastime in much of the northern and eastern U.S. In portions of Montana and North Dakota, the mercury dipped to between 35 and 50 below zero Fahrenheit for several days around Christmas those years. The cold air mass in 1983 even made it to the East Coast, with single-digit record lows in that timeframe still standing today in parts of the Carolinas.

While the bitter cold seems very likely to have pre-holiday revelers shivering in the north-central U.S., the bitter cold rushing right to the East Coast is not a sure bet. "Whenever there is a major blast of cold air on deck, there is usually a storm to accompany or precede it, temporarily delaying the arrival of the colder air along the Atlantic seaboard," says AccuWeather Senior Meteorologist Alex Sosnowski.

Confidence in a major winter storm that affects the Central and Eastern states just prior to Christmas is growing among AccuWeather meteorologists.

"The air is also likely to take an indirect route to the East or pass over the Great Lakes and would have a chance to moderate where there is little to no snow on the ground," Sosnowski added. "All bets are off in terms of any temperature moderation over the North-Central states, where expansive snow cover already exists."

Even with a slightly less-severe outcome as the air mass reaches the Atlantic coast, it is expected to be a colder Christmas than in recent years in many parts of the East. In New York City, for example, the high temperatures in the last three years have been 52 degrees Fahrenheit in 2021, 61 in 2020 and 47 in 2019. All of those high temperatures were above the average of 42 degrees Fahrenheit for the day.

The magnitude of the cold on Christmas Day in New York City should stop shy of the records for the day. In 1980, the mercury fell to 1 degree Fahrenheit below zero for a morning low, the only time in recorded history the city has been below zero for the holiday. The lowest high temperature ever recorded on Christmas there was just 13 in 1983.

AccuWeather's team of long-range meteorologists says there is a likelihood for a major winter storm to form along the periphery of the colder air next week as it moves east, including in parts of the southern Plains, Midwest, Southeast and Northeast states. The evolution of the storm and its snow will depend on the exact trajectory of the colder air and atmospheric energy associated with it. Meteorologists will add more detail to forecasts as more weather data becomes available in the coming days.

In the wake of that storm, there is the potential for cold air to reach into much of the Southeast states with the likelihood of hard freezes along the Interstate 20 and 10 corridors and into portions of the Florida Peninsula around or shortly after Christmas. People who will be heading away from home over the holidays may want to take preventative measures to avoid frozen pipes and water damage, forecasters urge.

See Also:

Hotter, rainier, wetter — the Arctic is dramatically transforming
Where is Blizzard Alley?
Winter storm to unload travel-snarling snow, ice in Northeast

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