Map Shows Coldest Places in US as Polar Vortex Descends
According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, ...
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12 Hour Surface Forecast
The 12 hour Surface Analysis map shows current weather conditions ... with its use finally spreading to the United States during World War II. Surface weather analyses have special symbols ...
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48 Hour Surface Forecast
The 48 hour Surface Analysis map shows current weather conditions ... with its use finally spreading to the United States during World War II. Surface weather analyses have special symbols ...