The watch is in effect from Monday evening through Tuesday afternoon. Heavy accumulations of sleet and snow are possible.

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

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,

An arctic front will sweep across Texas, bringing freezing temperatures and snow chances, NOAA reports with impacts expected statewide by Sunday.