CHICAGO (WLS) -- Before the winter of 2013, most Americans had never heard the term "polar vortex." A scant year later, the imminent arrival of the weather pattern that bedeviled Chicago, and most of ...

North America is bracing for severe winter weather as a predicted polar vortex collapse threatens to plunge temperatures and ...

The United States could be headed for some extreme weather this winter. That’s the early prediction from Severe Weather Europe, a website that tracks weather patterns around the globe. Three factors ...

As tempting as it may be when temperatures are in the 50s and 60s, do not declare winter in Columbus officially ended yet. Snow is in the forecast Wednesday and Thursday despite warm temperatures ...

Don’t pack up your jackets and pull out your shorts just yet. Forecasters predict the warm weather streak will fade as pockets of cold fronts move into New England later this spring. Accuweather ...

STATEN ISLAND, N.Y. — Spring typically welcomes the return of blooming flowers and warming temperatures. However, this season may feel a bit different. Paul Pastelok, a senior meteorologist and lead ...

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. A major ...