During winter in the Northern Hemisphere, the polar vortex can often expand and send cold air south, often referred to as an ...

Windchill temperatures as low as minus 30 degrees are a risk to life, forecasters said.

The relentless winter of 2025-26 in the East is about to unleash its most brutal cold outbreak yet.

HOUSTON, Texas (KTRK) -- Over the past week, viewers have been coming to the ABC13 Weather Team with questions about a possible arctic blast later this month. Those rumors came from a weather blog in ...

Florida has endured a winter few could have predicted. Since early November, the state has endured at least three rounds of ...

Arctic air originates near the polar regions and is among the coldest air masses on Earth. It typically stays locked in higher latitudes, but large-scale shifts in the jet stream can allow it to ...

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

This winter’s harsh run is intensifying, with some of the coldest air so far this season plunging into New Hampshire.