A forecast map reveals which states can expect to see “persistent cold” in the weeks ahead, after experts said the polar vortex would unleash waves of icy air across parts of the U.S. through January.
A forecast map from the National Weather Service (NWS) shows which states can expect the coldest conditions, with a fresh arctic blast expected this weekend. “Another shot of arctic air is on the way ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results