Polar vortex maps show where arctic blast is set to freeze the U.S. as far as the Deep South
A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.
Weather Underground2 个月
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 ...