Storm Blair has hit most of the U.S., bringing freezing temperatures to Texas. Precipitation later this week could mean snow for some areas.

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

Houston has been experiencing below-average temperatures as a polar vortex ushers in cooler conditions across the state.

Arctic air will return to Texas over the weekend, bringing below-freezing temperatures, low wind chills and the chance of wintry precipitation again.

About a week after a polar vortex brought snow and freezing temperatures to Texas, another cold snap is expected in time for the MLK holiday weekend.

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

The Arctic polar vortex is a band of strong winds above the North Pole that usually locks in extremely cold air, but right ...

A polar vortex is slated to sweep most of the continental United States bringing a hazardous freeze to millions of Americans from the Deep South to the Northeast Saturday going into next week.

A polar vortex has triggered freeze warnings across Texas, leading to dangerous conditions for people and infrastructure.

A mass of air called the polar vortex has escaped the Arctic and plunged southward. Some scientists see the fingerprints of ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...