A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central ...
Meteorologists said several states would experience the 10th and coldest polar vortex event this season. Weather forces in ...
But at times some of the vortex can break off or move south, bringing unusually cold weather south and permitting warmer weather to creep up north.
Severe weather alerts are issued as a polar vortex brings life-threatening cold to the Rockies and northern Plains.
Some of the coldest temperatures are expected in Montana, and avalanche warnings have been issued in Utah, Colorado and Washington.
A severe cold wave across the central and northern US has brought life-threatening temperatures, snowstorms, and deadly ...