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 ...

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

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.

Under the Rotunda of the U.S. Capitol, Donald Trump was again inaugurated, this time as the 47th president of the United ...

Several businesses and organizations have announced closings and cancellations ahead of the extremely cold temperatures.

Erin Davis/Axios Visuals An invasion of frigid air from the Arctic is sweeping south from the Plains and Ohio Valley Sunday, moving towards the Southeast and East. Threat level: The ...

Polar vortex brings frigid air to US, making Trump's inauguration coldest in 40 years, moved indoors due to cold.

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

With the next Arctic Outbreak looming close, we take a dive into what the Polar Vortex is and how it will affect our area: ...

So, as the Deep South grapples with the foreign language of snowflake icons making a (for some, repeat) appearance in weather apps, a reality check is in order.

A powerful Arctic outbreak tied in part to the polar vortex is set to send temperatures by next week tumbling down to as cold ...

The polar vortex will soon elongate over North America with a dangerous cold moving into sections of Canada and the U.S.