Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...
To understand what Americans are experiencing with this winter blast, we need to look more than 20 miles above the surface of ...
A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.
Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S.
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