Warmth is weakening the polar vortex. Here’s what it means for extreme cold.
Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...
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Polar Vortex And Polar Jet Stream: What's Behind The Freezing Weather In The US?
The polar vortex is a low-pressure system of cold air ... check out the beautifully simple diagram by the National Oceanic and Atmospheric Administration (NOAA) below. This effect, in part ...
Powerful polar vortex in the stratosphere brings frigid temperatures to US
A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...
Polar vortex to hit Texas with arctic air starting Monday. 4 maps show how cold it'll get
A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep ...