Wisconsinites woke up to bitter cold weather, schools closed. Is a polar vortex to blame?
Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout ...
Polar Vortex Brings Life-Threatening Cold To NYC Area
The bitter cold is the result of a polar vortex, which is an area of low pressure and cold air that surrounds the north pole, ...
A powerful Polar Vortex in the stratosphere brings frigid temperatures to US
The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...
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A polar vortex has brought arctic air to the U.S. including DC area
The polar vortex has shifted, spilling cold air across the U.S. with below freezing temperatures and subzero wind chills. The polar vortex is a ring of cold air that typically circles the Arctic.