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

As new Arctic air enters the United States, NWS meteorologists warn about the “most intense” snow storm of the season.

Temperatures will plummet by up to 40 degrees this weekend as an arctic blast spreads across much of the U.S., including the Deep South.

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.

As a massive winter storm is rolling through regions of the United States on Monday, see pictures of snow from across the ...

Flight cancellations and delays are stacking up as a major winter storm makes its way across the East Coast. As of about ... into or out of the United States on Monday. Those flight cancellations ...