The wind chills as low as 15 degrees are expected for parts of Alabama, Georgia and Florida Thursday evening into Friday morning.

More than 220 million people across the United States are facing dangerous cold that will also open the door for a potentially historic and crippling winter storm that could deliver snow as far south as Florida and the Gulf of Mexico.

Snow totals in Louisiana have broken records. Parts of Florida, Texas and Georgia have also accumulated several inches of snow.

It’s been a somewhat mild winter so far, but things have certainly changed as winter weather makes its presence known across the Lower 48 states ... The National Weather Service said ...

A polar vortex is slated to sweep most of the continental United States bringing ... according to a post on X from National Weather Service New York. Other Northeast states have winter storm ...

Follow NBC News live updates for the latest coverage of the freezing winter weather affecting large swaths of the U.S., from the Midwest to the South.

Memphis is set to get hit with a cold weather system early this week that could drop wind chills to as low as 5 degrees.

More than 220 million people across the United States are facing dangerous ... climatologist Jay Grymes said Monday. A National Weather Service forecast warned, “this should be considered ...

ARLINGTON, Va. (AP) — At least 28 bodies were pulled from the icy waters of the Potomac River after an American Airlines jet carrying 60 passengers and four crew members collided with an Army helicopter while landing at Ronald Reagan National Airport near Washington, officials said Thursday.

An American Airlines regional jet and a US Army Black Hawk helicopter collided mid-air near Reagan Washington National Airport, crashing into the Potomac River.

A family with Georgia ties is grieving after learning their loved one was one of the pilots killed in the crash between a small American Airlines plane and a military helicopter crash near Reagan National Airport.

Authorities say they fear there are no survivors after an American Airlines jet and an Army helicopter collided midair near Ronald Reagan National Airport Wednesday night. The jet carrying 60 passengers and four crew members and the Black Hawk helicopter collided while landing at the airport Wednesday night.