WASHINGTON (WJLA) — Early indications of a weakening polar vortex could send Arctic air into North America next month. Much of the U.S. is overdue for some cold air and winter-like temperatures ...

Whether it's this week's polar vortex that's bringing record-smashing cold to much of the nation, or any other apocalyptic-sounding winter weather phenomenon, motorists in the path of freezing ...

Click here for the latest update. A polar vortex is forecasted to blanket most of the continental United States in the coming week, with parts of the Deep South expected to see freezing temperatures.

A polar vortex is a stream of cold air that normally ... Include things like warm winter clothes, a warm blanket, hand warmers, back-up batteries for your cell phones." The National Weather ...

A “hard freeze” from a “polar air mass” is expected to descend on Charlotte, the North Carolina mountains and Upstate South Carolina this weekend and could last for days, National Weather ...

The Mars Express probe used its radar instrument to map the thickness of Mars' south polar layered deposits. Analysis of the Marsis radar data shows that the polar deposits consist of almost pure ...

The Mars Express probe used its radar instrument to map the thickness of Mars' south polar layered deposits. Analysis of the Marsis radar data shows that the polar deposits consist of almost pure ...

A “polar air mass” could last for days in the Charlotte area, mountains and Upstate South Carolina, National Weather Service meteorologists said on Friday. 33,950 people played the daily ...