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

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

Seven states are expecting heavy snow ahead of an Arctic blast that is set to descend across the U.S. beginning on Friday and lasting until early next week. On Thursday, winter weather advisories ...