As the polar vortex begins to stir, subtle clues point to the coming seasonal shift. So, when will freezing temperatures arrive in Indiana?

Indiana woke up to its first hard freeze of the fall on Friday, October 24, twelve days earlier than usual. Overnight lows ...

The polar vortex is making a return to the forecast, but the counterintuitive weather feature is nothing to fear.

How cold, snowy will winter be? New NOAA forecast holds clues. Winter is coming − but how cold is it going to be? Federal ...

The polar vortex is a large region of low pressure and cold air that has always existed around Earth's poles. While the polar vortex is weakening for the season, it does not directly cause winter ...

The polar vortex is beginning to stir, signaling a gradual shift toward cooler fall weather in the northern U.S. Tennessee is expected to see mild temperatures through December, with the average first ...

CLEVELAND — High above the Arctic, swirling like a giant icy crown, the polar vortex is a permanent feature of our atmosphere ...

The Earth's polar vortex is strengthening, signaling a gradual cooling and a more active storm track across the northern U.S. North Carolina's first freeze typically occurs between late October and ...