A Polar Vortex Is Stretching Across the U.S. Here’s What to Expect
Meteorologists had predicted that parts of the U.S. would experience the 10th and coldest polar vortex event this season.
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'Life-threatening cold' hits parts of US following deadly weekend flooding
Extreme cold warnings were issued for an 11-state swath of the U.S. stretching from the Canadian border to Oklahoma and central Texas ... from an abandoned coal mine. The mine blowout damaged ...