It's been a warm autumn, so far. But the polar vortex is forecast to change unusually early, and that could impact your ...

A rare stratospheric event is forecast to unleash bone-chilling air from a weakening vortex across the US and New England, ...

The polar vortex is weakening, which means New England is in for a colder than usual December, with episodic cold snaps.

The phrase "polar vortex" has captured public attention and is now often misused to describe short-term bouts of frigid ...

Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, ...

Forecasters are expecting a weakened polar vortex to bring cold air after Thanksgiving. An uncommon occurrence at this time ...

It has been a warm autumn, so far. But the polar vortex is forecast to change unusually early, and that could impact your ...

A blast of polar vortex cold air is expected to hit parts of the country during Thanksgiving. What to expect in Tennessee.

But across the country, AccuWeather meteorologists are predicting major travel disruptions as a storm system is set to batter ...

A wide swath of the western U.S. may be in for below-average temperatures as forecasts suggest an Arctic blast is looming.

La Niña and polar vortex weather patterns will be at play for the 2025-2026 winter season. Here's what we know about the ...

A rare polar vortex disruption will bring chillier temps this December. The sudden Stratospheric Warming Event will trigger ...