polar vortex

Forecasters warn of a 'potentially catastrophic' US winter storm
The exact timing and path remain uncertain, but an arctic air mass from Canada is expected to clash with rain, creating a major winter storm.
Polar vortex in 1899 brought subzero temps to North Carolina
Fire chief's beard freezes while fighting fire
Polar vortex: Iowa college student found dead on campus
These frigid temperatures are going to continue through the night
Polar Vortex: It's going to get really cold tonight
Polar vortex to bring freezing blast of air to Raleigh
More Stories
What is a polar vortex?
Record snow blankets the Great Lakes
Record snow blankets the Great Lakes
Why is it about to get so cold in much of the country?
Record Snow Blankets the Great Lakes
More Stories
Polar vortex in 1899 brought subzero temps to North Carolina
Fire chief's beard freezes while fighting fire
Polar vortex: Iowa college student found dead on campus
These frigid temperatures are going to continue through the night
Polar Vortex: It's going to get really cold tonight
Polar vortex to bring freezing blast of air to Raleigh
What is a polar vortex?
Record snow blankets the Great Lakes
Record snow blankets the Great Lakes
Why is it about to get so cold in much of the country?
Record Snow Blankets the Great Lakes