The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout ...

Arctic air has brought chilling temperatures as low as 12 degrees in New York City on Monday night but are we in a polar ...

WASHINGTON — Get ready for extreme cold weather in D.C. and most of the U.S. over the next few days. The polar vortex has ...

Most of the current cold snap, which swept in a few days ago, should have passed, but temperatures remain dangerously low.

MINNEAPOLIS, Minnesota — Our entire region is under an Extreme Cold Weather Warning until 12 p.m. Tuesday; wind chills could fall as low as -45 degrees. This Arctic blast is thanks to a polar vortex.

This blast of frozen temperatures is tied to a polar vortex... but what is that? Air spins around the notoriously cold North and South Poles. When the air is spinning fast, it's stable, but when it is ...

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures.

Every winter, NOTL resident Barb Lymburner can count on her son-in-law, Justin Gorgi, to shovel her driveway — a tradition he’s determined to continue, even with the polar vortex. “It’s just a normal ...

Arctic air moved south, into the area starting late last week and has lingering since. This has lead to dangerously cold ...