Almost all of East Texas is under a cold weather advisory through Sunday morning, and the National Weather Service in Shreveport says confidence in wintry precipitation next week is increasing.

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

Almost all of East Texas is under a cold weather advisory through Sunday morning, and the National Weather Service in Shreveport says confidence in wintry precipitation next week is increasing.

Confidence is increasing that East Texas will see some sort of winter precipitation Thursday and Friday, The National Weather Service in Shreveport said.

TxDOT is pre-treating East Texas roads, including I-20, with a brine solution to combat potential ice. Drivers should stay cautious near bridges, ramps, and overpasses, as they freeze first. Stay updated on road conditions at DriveTexas.

CBS19 has reached out to some area school districts to see what their protocol is and what precautions they're taking.

The National Weather Service says the area could see heavy mixed-precipitation with total snow accumulations between 2"-6" and ice accumulations up to 1/2".

Below are the maps of the impacted regions: Portions of northern and east Texas can be seen under a winter storm watch on Wednesday. (Photo from the National Weather Service) Portions of northern ...

According to the National Weather Service, snowfall ranging from two to five inches is possible in the Dallas-Fort Worth area. North Texas may see higher precipitation accumulations, while southern and Central Texas expect less. A mix of sleet and ice is also anticipated in Central Texas.

With one storm safely out to sea, attention turns to the next system that's forecast to spread a wintry mess from Texas to the East Coast this week.

Mild weather ends as an arctic front arrives late Friday, bringing cold air and the chance for snow on Tuesday of next week. Temperatures will drop well below normal, and residents should take precautions for freezing temperatures,

A blast of extreme cold is poised to descend on the central US this weekend before spreading to New York and the rest of the East Coast, testing power grids and threatening to break temperature records.