A significant and rare polar vortex shift is currently unfolding in February 2026, triggering extreme winter conditions ...

A winter buzzword, explained.

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

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

A warming Arctic can stretch the polar vortex, a high-altitude air ribbon, one says. The “wobble” can disrupt the jet stream, ...

Extreme wind chill conditions are gripping parts of Northern Canada as Arctic air pushes temperatures to dangerous lows, ...

New York is bracing for the coldest air of the winter this weekend, with snow. Learn how the polar vortex is involved.

Michigan are bracing for the coldest weekend of winter as Arctic air plunges south.

This winter’s harsh run in the East is intensifying, with some of the coldest air so far this season plunging into Vermont this weekend.

If you’ve felt like the weather recently has been uncomfortably frigid, even for winter, you’re on to something. The abnormally cold weather has been lingering for some time now, with temperatures 20 ...

With the Polar Vortex moving northward, a notable bend in the jet stream is anticipated over the West Coast. This alteration will create a ridge over the eastern U.S., leading to warmer temperatures ...

A vast winter storm is gripping the United States, bringing dangerous snow, ice and plunging temperatures to millions.