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, ...

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

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

Although a major winter outbreak is not guaranteed, forecasters are watching for below-average temperatures to develop in the ...

The cold temperatures — which might not reach Long Island — would be caused by a disruption in the polar vortex above the ...

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

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to Michigan.

According to meteorologists and climatologists, critical changes in two major atmospheric patterns—La Nina and the polar ...

Another Arctic blast is on the move toward the U.S., bringing the potential for bitter cold and heavy snow accumulations to ...

But across the country, AccuWeather meteorologists are predicting major travel disruptions as a storm system is set to batter much of the western United States and Midwest with heavy snow and cold ...