The Polar Vortex,an atmospheric phenomenon that shapes our winter weather,has been gaining attention as it undergoes changes ...

Two newly identified patterns in the stratospheric polar vortex can send cold air over North America to cause extreme cold ...

A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep through Texas.

When will the polar vortex reach Texas? The effects of the polar vortex are expected to reach Texas on Monday and bring freezing or below-freezing temperatures throughout the week.

An area stretching from Texas to Tennessee braces Wednesday for the possible arrival of freezing rain and snow.

Stratospheric polar vortex changes still trigger brutal U.S. winter cold snaps and extreme weather despite a warming climate.

The polar vortex readies to dump snow on Texas and its neighbors The cold snap coincided with rare January wildfires that were tearing through the Los Angeles area.

An area stretching from Texas to Tennessee braces Wednesday for the possible arrival of freezing rain and snow.

DALLAS (AP) — An area stretching from Texas to Tennessee braced Wednesday for the expected arrival of freezing rain and snow, as some other parts of the country that already received an arctic blast ...

An area stretching from Texas to Tennessee braces Wednesday for the possible arrival of freezing rain and snow.