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Every US state will see below freezing temperatures over the next week
by 8DonCo Tue Feb 02, 2021 6:45 pm
Polar vortex on the way by the weekend
This frigid cold is compliments of the polar vortex, a large area of low pressure located near the poles. During the winter months it breaks down, sending cold air that has been bottled up, southward. It can be responsible for extremely frigid temperatures and huge plunges of cold air.
The polar vortex has been weakened even more so this year by the Sudden Stratospheric Warmings that occur about six times a decade.
This will cause the polar vortex to weaken even further, bringing cold air outbreaks to the US, which allows cold air that has been bottled up high int he atmosphere, to be release southward, making for bitterly cold conditions at the surface.
The cold air will start diving down through the upper Midwest and Midwest on Saturday. Places in Central Wisconsin could see temperatures plummet to -25F on Sunday, with high temperatures struggling to make it to zero.
It's a shock for some of the toughest population in the Midwest, when it comes to cold.
"We get 2-3 of these cold snaps every year," said National Weather Service Office Meteorologist Marcia Cronce. "We are heading into the coldest air of the season, it will feel jolting."
With highs right around freezing for much of the week, Madison will plummet by the end of the week with a high of only 10 degrees by Saturday. And it's not just the cold air, the wind plays a big factor too. Wind chills for areas outside Milwaukee could reach 20-30 degrees below zero Saturday and Sunday nights.
The polar vortex is to blame
This frigid cold is compliments of the polar vortex, a large area of low pressure located near the poles. During the winter months it breaks down, sending cold air that has been bottled up, southward. It can be responsible for extremely frigid temperatures and huge plunges of cold air.
The polar vortex has been weakened even more so this year by the Sudden Stratospheric Warmings that occur about six times a decade.
This will cause the polar vortex to weaken even further, bringing cold air outbreaks to the US, which allows cold air that has been bottled up high int he atmosphere, to be release southward, making for bitterly cold conditions at the surface.
A flash freeze to hit the Midwest
The cold air will start diving down through the upper Midwest and Midwest on Saturday. Places in Central Wisconsin could see temperatures plummet to -25F on Sunday, with high temperatures struggling to make it to zero.
It's a shock for some of the toughest population in the Midwest, when it comes to cold.
"We get 2-3 of these cold snaps every year," said National Weather Service Office Meteorologist Marcia Cronce. "We are heading into the coldest air of the season, it will feel jolting."
With highs right around freezing for much of the week, Madison will plummet by the end of the week with a high of only 10 degrees by Saturday. And it's not just the cold air, the wind plays a big factor too. Wind chills for areas outside Milwaukee could reach 20-30 degrees below zero Saturday and Sunday nights.
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8DonCo
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