A combination of frigid air with a low pressure system over the Gulf are behind the storm, which could bring heavy snow just south of the Interstate 20 corridor across northern Louisiana and into Mississippi and a mix of snow, sleet, and freezing rain near the Interstate 10 corridor from Houston to Mobile, Alabama.

As a slug of polar vortex-fueled arctic air overtakes the eastern two-thirds of the U.S. next week, a storm system could bring snow, sleet and freezing rain to places deep in the heart of Texas, but the forecast isn’t a lock just yet.

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

Temperatures will plummet by up to 40 degrees this weekend as an arctic blast spreads across much of the U.S., including the Deep South.

Hopefully you’re ready for the arctic blast or will get ready Friday or Saturday. After a breezy day Friday with slightly above average temperatures and a few drizzles, cooler winds will kick in Saturday morning.