Cities that rarely get snow are getting more than a foot in frigid 'Arctic outbreak' that's killed 4 people
Storm Blair is bringing heavy snow to areas in the mid-Atlantic region that haven't seen such weather in a decade.
Winter storm live updates: Multiple deaths reported as snow slams mid-Atlantic region; over 1,900 flight cancellations
The storm has caused severe air travel disruptions. According to FlightAware, more than 1,800 flights in and out of the U.S.
The Canadian Press on MSN1h
Polar vortex keeps much of the US in its icy grip
A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend ...