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

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 ...

There may be a disruption to the polar vortex due to an unusually early Sudden Stratospheric Warming event. Judah Cohen, a ...

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

NBC 5 Storm Team Meteorologist Kevin Jeanes took a look at what’s going on and what the weather may look like going into ...

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

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

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

Next week’s pre-winter arctic plunge might be a sign of things to come for the Eastern U.S., as several key weather patterns ...

The polar vortex, which is a persistent large-scale cyclone located near the North Pole, affects winter weather by bringing ...