A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor ...

The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March.

This warming will affect the Polar Vortex ... and the eastern U.S. If the Polar Vortex does indeed die in the next few weeks, we will have consistent spring weather sooner rather than later.

such as the state of the stratospheric polar vortex that is potentially predictable several weeks in advance. “Being able to provide early warnings of possible severe weather is all the more ...

Forecasters predict the warm weather streak will fade as pockets of cold fronts move into New England later this spring. Accuweather Senior Meteorologist Paul Pastelok says the March polar vortex ...

While many are surely glad to bid farewell to Old Man Winter, a string of disruptions to the polar vortex means that the Northeast may see some shots of cold air in the weeks ahead.

The polar vortex could bring a cold blast to millions across America in the second half of March, AccuWeather said in a media advisory sent to Rigzone recently. “AccuWeather long-range experts ...

The polar vortex is a large mass of cold air that ... predicting a collapse-driven deep freeze are not supported by current weather models for Ottawa. “None of the sources I trust — National ...

the weather service said they will be watching for possible frost advisories early next week, "now that the growing season has started." Experts say the polar vortex will play a role in next week ...