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Polar air and a powerful winter storm put millions of people on alert this holiday week in the United States

2022-12-20T12:17:30.092Z


More than 25 million people are under wind chill alerts across much of the central and northwestern US this holiday week.


The most shocking images of the destruction by the winter storm in the US 1:35

(CNN) --

For millions of Americans in much of the country, the holiday week begins with unrelenting sub-zero temperatures made even harsher by heavy snowfall expected Tuesday and Wednesday in several central and mid-west states. northwest.

More than 25 million people are under wind chill watches across much of the central and northwestern US, including in places hit with blizzard conditions from a separate storm system last week.

On Tuesday, the sprawling weather system will bring dangerously cold temperatures and snow to Montana, North Dakota, South Dakota and most of Minnesota, where maximum temperatures will remain below freezing, according to forecasters with the National Weather Service.

The air feels so cold that frostbite on exposed skin can occur in less than 10 minutes in most impacted areas, and some isolated places in less than five minutes, forecasters warn.

"In addition to brutally cold temperatures, dangerous wind chill values ​​of 35 to 55 degrees below zero are possible through the end of the week in these areas," the Weather Prediction Center said Monday.

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Wind chill advisories are in effect Tuesday for Sioux, South Dakota, and Fargo, North Dakota, as frost dangers are setting in.

The wind chill, which indicates how the wind feels, will be up to 40 degrees below zero.

"Starting tonight, the worst of the arctic air mass will hit our area, bringing dangerous temperatures and wind chills. Roads will remain slippery and additional snowpack is expected Tuesday afternoon through Wednesday morning." the weather service office in Glasgow, Montana, said Monday night.

Snowfall has already started in Seattle, which is under a winter storm warning on Tuesday.

The storm will move east across portions of Idaho Tuesday morning and then move across northern and central Montana by afternoon.

As the storm moves east this week, it could make vacation travel difficult, if not dangerous, in many places, so forecasters urge people to be prepared to make changes.

In Minnesota, the Twin Cities weather service implored residents to be wary of the "potentially dangerous week of weather," with the worst effects hitting the Midwest beginning Wednesday.

"The bottom line is that travel will be very dangerous and could be life-threatening later this week, so be prepared to alter your travel plans now," the local weather service office said.

Many local governments in affected areas have opened warming centers in an attempt to provide relief to those in need.

What to expect in Christmas week

Overall, most of the US is expected to experience abnormally cold temperatures this week.

In fact, more than 80% of the country, except Hawaii and Alaska, is expected to experience freezing temperatures.

In Montana, Helena and Missoula are under a winter storm warning beginning Tuesday, and Billings is under a wind chill warning until noon Friday.

The storm is also expected to intensify as it approaches the Midwest, where the greatest impacts are expected.

Snow will begin to fall in the region on Wednesday and will last through much of the Christmas weekend.

In parts of central Minnesota, several inches of fluffy snow is expected Wednesday, followed by high winds, creating the possibility of blizzard conditions.

A blizzard is defined as having winds of at least 40 mph along with falling or blowing snow that reduces visibility to 1,500 feet or less, for at least three hours.

"By this Thursday, gusts of 40-50 mph appear likely. With snow in place, blizzard conditions are highly likely throughout the area, even in areas not normally favored by storm conditions. white," the weather service said.

Chicago is expected to be one of the hardest-hit cities, where a winter storm watch is in effect Thursday night through Friday afternoon.

With blizzard conditions likely, vacation travel could come to a standstill for many looking to celebrate with family and loved ones.

"Conditions will rapidly deteriorate late Thursday afternoon, with snowstorms becoming increasingly likely Thursday night through Friday," the Chicago weather service office said. lies one of the busiest long-distance train stations and airports in the country.

Meanwhile, even southern cities unaccustomed to wintry conditions will have a brittle taste of this holiday season, with Austin, Houston, Atlanta, and even Orlando at risk of seeing freezing temperatures starting midweek.

In Texas, the National Weather Service has assured residents that this week's unusually low temperatures are not expected to affect the state as badly as last year's brutal winter storms, when millions of people lost power during a week of phenomena. extreme weather in February 2021.

However, water pipes will be at risk of bursting, the weather service said.

A wind chill watch for Amarillo, Texas is in effect Wednesday night through Friday afternoon.

"Outdoor pipelines will be at risk due to well below freezing temperatures and windy conditions later this week," the weather service in Fort Worth said.

"Make sure you cover the pipes and let the faucets drip!"

CNN's Robert Shackelford, Jennifer Gray and Michelle Watson contributed to this report.

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Source: cnnespanol

All news articles on 2022-12-20

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