The Baltimore City Health Department has declared a "Code Blue" for the next three days, as temperatures plummet into the single digits in the region in the wake of the weekend snow. The determination ...

Brisk winds with gusts of 25-30 mph will make conditions even colder, bringing wind chills down to single digits and below zero. Authorities are warning drivers to use “extreme caution” on the roads.

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 ...

Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures ...

Much of the U.S. from the Rockies into the Northern Plains will see colder than normal temperatures starting Sunday into the ...

The polar vortex is expected to reach the Utah-Idaho border sometime in the late afternoon and evening Friday as it continues ...

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary ...

An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia ...

A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.