There’s a chance of snow this weekend before temperatures are expected to drop to the single digits next week due to a blast of arctic air.

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into next week, impacting millions of Americans in nearly all of the contiguous states.

A winter storm could develop along an incoming Arctic cold front, increasing Maryland's chances of seeing accumulating snow.

The plunging polar vortex is bringing subfreezing temperatures to some of the southernmost points of the U.S. A forming storm system threatens to dump snow on parts of Texas and Oklahoma, while communities in Louisiana and Florida may see frigid cold.

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid grip, making many roads treacherous,

Seven US states declared emergencies owing to the polar vortex of icy air that usually circles the North Pole.

The polar vortex of ultra-cold air usually spins around ... Classes were also canceled in Maryland, where Gov. Wes Moore declared a state of emergency Sunday and announced that state government ...

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

These severe cold events occur when the polar jet stream – the familiar jet stream of winter that runs along the boundary between Arctic and more temperate air – dips deeply southward, bringing the cold Arctic air to regions that don’t often experience it.

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, a meteorologist says. That includes Kansas City, which is set to host a Chiefs playoffs game this weekend.

But during the winter, it is joined by a second atmospheric phenomenon dubbed the polar vortex. This swirl of frigid air, located more than 10 miles above Earth’s surface, strengthens each year ...