Jet Stream Connection: A disrupted polar vortex often affects the polar jet stream, making it wobble and allowing cold air to push farther south while warm air moves north in other regions ...

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

Kentucky Gov. Andy Beshear said Sunday that ... Meteorologists said the U.S. was about to get its 10th and coldest polar vortex stretching event this season, with the northern Rockies and northern ...

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

Flood warnings remain in effect across Kentucky, Arkansas, Tennessee, Mississippi, Alabama, West Virginia, Virginia, and Ohio. Frigid cold temperatures expected as polar vortex sweeps across U.S ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March, ...

Kentucky Gov. Andy Beshear said Sunday that ... Meteorologists said the U.S. was about to get its 10th and coldest polar vortex stretching event this season, with the northern Rockies and northern ...