US, Polar Vortex

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...
The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...
A polar vortex over southern Ontario means Waterloo region, Guelph and Wellington County will experience very cold ...
A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.
This is where we live and where all weather happens, essentially. The layer above that is the stratosphere. For the ...
A lobe of the Polar Vortex is going to swing through Ontario just north of Michigan. The upper-air forecast gives us an easy ...
More than 120 million people live in a zone that will experience ... frigid conditions that will rival the notorious polar vortex episode of winter 2014. During January 2014, more than 140 ...