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

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the ...

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

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...

A winter storm sweeping through the U.S. South on Tuesday was dumping snow at levels millions of residents haven't seen ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades ... with cities from Texas to Florida under Winter ...

Snow and ice will develop in Texas and Louisiana Monday night before ... Life-threatening' cold temperatures generated by a polar vortex will be fueling Winter Storm Enzo, bringing potentially ...

Part of Mississippi under extreme cold warning after winter storm dropped snow across the Gulf Coast. When will temperatures ...

The LDH reported one winter weather-related death in the state this year—a 65-year-old man in Rapides Parish who died due to ...

However, things are expected to improve Tuesday; temperatures should to climb back toward 40 along the Front Range, as the polar vortex releases ... a winter storm in Texas, combined to cause ...