An April cold snap is expected to bring unusually cold temperatures to the eastern half of the US next week. The cold snap could impact new spring vegetation and lead to frost in some areas.

The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March. Currently, its remains are traveling eastward across Canada to the United States.

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

April 5, 2025 - By Laura Ciasto and Amy Butler - After spending much of the season with super strong wind speeds, the polar vortex bowed out two weeks ago, with the core west-to-east winds sliding ...

The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms to the central and eastern U.S.

Choose from Funny Polar Bears Clip Art stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Video Back Videos home Signature collection ...

Accuweather Senior Meteorologist Paul Pastelok says the March polar vortex disruption is one of the largest meteorologists have seen in a long time. A polar vortex is a large area of low pressure ...

Warm conditions across much of Europe are forecast to give way to periods of unseasonably cool temperatures and stormy weather during April. The first such shift will take place over the weekend ...