“Winter returned,” said Bob Oravec, lead forecaster at the National Weather Service in College Park, Maryland. The polar vortex of ultra-cold air usually stays penned up around the North Pole ...
"Winter returned," said Bob Oravec, lead forecaster at the National Weather Service in College Park, Maryland. The polar vortex of ultra-cold air usually stays penned up around the North Pole ...
lead forecaster at the National Weather Service in College Park, Maryland. The polar vortex of ultra-cold air usually stays penned up around the North Pole, spinning like a top. But sometimes it ...
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