A massive winter storm is blanketing large swaths of the Southern U.S. in snow and ice, leaving millions eager to track its path and prepare for what’s ahead. With warnings stretching across multiple states,

The forecast doubled the amount of snow expected in the Columbia area, as up to 2 inches of the white stuff is now forecast to accumulate, according to the warning. Between 2-3 inches of snowfall is possible in the southern reaches of the Midlands, meteorologists said in the briefing. Localized amounts in other areas could be higher.

The First Alert Weather Team says heavy snow has impacted much of the Deep South through Tuesday from New Orleans to Pensacola.