A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

The National Weather Service (NWS) has issued urgent weather warnings for several counties across the state, with temperatures dropping below freezing and wind chills reaching dangerously low levels.

A series of cold fronts the last few weeks has kept Florida downright chilly, as another winter storm starts to take aim this weekend

"Luckily for Florida, the cold front, although still strong, is weakening as it moves eastward. There is still the chance for some isolated intense storms on Monday, especially across the central and eastern portions of the Panhandle North Florida, through the western part of the I-4 corridor."

The Florida Panhandle could see a brief period of snow or ice next week, if the right conditions combine. Bottom line: Cold temps coming.

Abundant cloud cover and rain will keep overnight temperatures more mild, with lows in the 50s and 60s throughout Central Florida.

A disruption in the polar vortex is about to send an Arctic air mass from Siberia as far south as Florida. Yes, Siberia—and it’s as dramatic as it sounds. As many as 47 states will experience unseasonably cold temperatures. Some areas will be hit with dangerous wind chills as low as 40 below zero.

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

A major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to nearly every American east of the Rockies.

Every year, the state of Florida observes the birth of Confederate General Robert E. Lee as an official state holiday.

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans. See maps of the arctic blast.