Polar vortex coming to St. Louis area: Here's how cold it will get
The polar vortex will extend into the metro St. Louis area Saturday bringing several days of temperatures plunging to single digits and wind chills below zero.
Polar vortex maps show where arctic blast is set to freeze the U.S. as far as the Deep South
A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.
What is the polar vortex?
The term 'vortex' doesn't mean anything scary, it just describes the direction air is traveling. Saving more, paying down ...