Most of Maryland is under a cold weather advisory from the National Weather Service through Thursday as temperatures plummet ...

Nearly all of Michigan received an extreme cold warning yesterday. A surge of arctic air known as the polar vortex is the cause behind this abnormally cold weather. According to the National Weather ...

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

Louisiana isn’t known for extreme cold weather—but that changed Tuesday, when the National Weather Service issued its first ...

∎ Tuesday night: A 20% chance of snow showers before 9 p.m. Cloudy during the early evening, then gradual clearing, with a ...

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...

New York’s being hit by an arctic polar vortex, making temperatures drop hard overnight after a snow storm hit on Sunday.

A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...