A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

As another winter storm hits South Carolina and other regions, here's what to know about deciphering forecaster terms.

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

Brutal midwinter cold is settling in across the eastern United States, and forecasters say it is not leaving quickly. A disrupted polar vortex is expected to keep Arctic air locked over the region ...

To understand what Americans are experiencing with this winter blast, we need to look more than 20 miles above the surface of ...

Climate deniers are quick to say 'I told you so' when the mercury drops. But a warmer planet impacts weather in ways that can ...

This winter, the Northern Hemisphere has been suffering from extreme cold. In South Korea, an unusually prolonged cold wave ...

Meteorologist Sven Sundgaard predicted this wacky winter weather back in October, and he explains what's happening now and what might happen next.

Winter storms swept through a large swath of the U.S. this weekend, bringing heavy snow, ice, and freezing temperatures.

Georgia's electric utilities will face a second test of their power grid this week as freezing temperatures could strain ...

The pronounced U.S. weather pattern this winter - a warm, dry West and cold, snowy East - is expected to persist for the first 10 days of February. Then things could change.

The current Iran protests are distinguished not only by a change in the U.S. response, but the markedly weakened condition of ...