A polar vortex is slated to sweep most of the continental United States bringing a hazardous freeze to millions of Americans from the Deep South to the Northeast Saturday going into next week.

Snow and winds are likely to trigger flight cancellations and cause headaches for people traveling to DC for Inauguration Day.

The Arctic blast that is hitting the U.S. will sweep through parts of Texas with one forecaster predicting large snowfalls, and a map by Newsweek shows the hardest hit areas. A forecast shows "significant snow" across the southeast of the Lone Star State in the coming days,