Top news
Polar vortex death toll rises to 21 as US cold snap continues
75% of the US population will suffer below-freezing temps this week
By Holly Yan & Emanuella Grinberg
Midwest Bracing for Antarctic-Like Weather
By Mitch Smith
Polar Vortex Triggers Coldest Arctic Outbreak in at Least Two Decades in Parts of the Midwest
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Formerly TwitterNWS Mount Holly
NWS_MountHolly
We have quite the warm-up on the way ☀️, but not before yet another cold night tonight. 🥶 Frost and freeze potential remains tonight and into early Friday morning with temperatures expected to cool down into the low to mid 30s! pic.twitter.com/FAyUQ7GWk8
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Ryan Maue
RyanMaue
Great Lakes and Northeast still below freezing tomorrow morning. Friday's lows in the 20s in Michigan and New England. pic.twitter.com/e2Sp58wzM0
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NWS Twin Cities
NWSTwinCities
Isolated showers will taper off this evening and skies will clear out overnight. Temperatures will drop into the 20s across western Wisconsin & below freezing in eastern Minnesota. Frost/Freeze is likely in those locations. Wet weather returns this weekend. pic.twitter.com/EJyqGl8cru
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NWS Boston
NWSBoston
Another cold night with a wide spread freeze expected across southern New England. Winds remain light and variable with clear skies. pic.twitter.com/sVdDtOPVJZ
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All coverage
A Closer Look at the Polar Vortex's Dangerously Cold Winds (Published 2019)
By Jeremy White, Karthik Patanjali & Evan Grothjan
Polar vortex: As many as six deaths, USPS delivery suspended, school canceled across Midwest
By Angela Fritz, Katie Mettler & Amy B Wang
Polar Vortex Hits The Midwest With Life-Threatening Cold Temperatures
By Shannon Van Sant
Cold Chicago, Midwest weather: US freeze from polar vortex hits mail
By Doyle Rice, John Bacon & Aamer Madhani
Extreme weather is so bad in some parts of the country, even the US Postal Service won't be going out
By Steve Almasy, Christina Maxouris & Holly Yan
Extreme Cold Weather Spreads East
By Monica Davey, Mitch Smith & Julie Bosman
A Merciless Cold Lingers in the Midwest
By Monica Davey & Julie Bosman
Polar vortex weather sets records, responsible for deaths in several states
By Angela Fritz, Katie Mettler & Cleve Wootson