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Arctic air to invade north-central US this week

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Mild air will be slashed across the north-central United States as a fresh wave of cold air dives southward throughout the week.

In some cases, temperatures will drop 20 to 30 degrees Fahrenheit from early to late week across the northern and central Plains.

An Alberta Clipper storm will open the door for the arctic invasion.

“Arctic air will plunge southward for the start of February,” AccuWeather Senior Meteorologist Kristina Pydynowski said.

Cold air returns


After highs in the upper 30s F in Bismarck, North Dakota, on Monday, temperatures will fail to leave the teens from Wednesday to Friday. A typical high in the city during the first days of February is 25.

Highs in Minneapolis will return to the teens by late week, which will be the coldest it has been in the city since early January.

Lows Wednesday night will dip below zero and into the single digits across much of the northern tier.

“There will be a slight breeze at times when the cold settles in to create lower AccuWeather RealFeel® Temperatures,” Pydynowski said.

Residents that may have put away hats, gloves and winter coats due to the brief mild spell will once again need to bring the winter attire out of the closet.

“Anyone that has to spend a lengthier time outdoors should definitely bundle up and cover all exposed skin, and care should be taken to ensure that livestock have proper shelter,” Pydynowski said.

Some of the chill has the potential to make significant progress across the Central states.

Midweek outlook


Kansas City and St. Louis, Missouri, will feel more like March early this week before temperatures fail to leave the 30s on Thursday.

In Oklahoma City, highs failing to leave the upper 40s to lower 50s at late week will be a stark contrast to the 60s and lower 70s to start the week.

As the chill spills eastward to end the week and begin the new weekend, the typical winter cold already in place across the Northeast will be reinforced.

With cold air in place, any storms that track across the Northeast during the first full week of February have the potential to deposit wintry precipitation across parts of the region.