A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar ...

The intense cold snap about to settle over most of Canada and the U.S. has been dubbed a “polar vortex’, but Environment ...

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Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

The polar vortex will soon elongate over North America with a dangerous cold moving into sections of Canada and the U.S.

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes ventures south into the U.S., Europe ...

The National Weather Service in Springfield said Wednesday afternoon that it is putting Southwest Missouri and Southeast Kansas under a winter weather advisory from 5 p.m. Thursday to 6 p.m.

LOS ANGELES — Massive wildfires roaring through the Los Angeles area left neighborhoods in ruins Wednesday, killing at least ...

The plunging polar vortex is bringing subfreezing temperatures to some of the southernmost points of the U.S. A forming storm ...