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

A lobe of the polar vortex, a ring of freezing air typically ... Missouri, Illinois, Indiana and Kentucky Wednesday: Missouri, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Tennessee ...

The polar vortex of ultra-cold air usually spins around ... School closings were widespread, with districts in Indiana, Virginia, Kentucky, Missouri and Kansas canceling or delaying the start ...

Following is a transcript of the video. The polar vortex is headed toward the US, expected to bring record-breaking cold to the Northeast, upper Midwest, and Great Lakes by this week. It's so cold ...

10th polar vortex of the season hits the U.S. Here’s what to know With record snow in New Orleans last month and drought and destructive wildfires in Southern California, this winter has not ...

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.