At least 46 million people were under a winter storm warning as of Thursday as the storm spreads along the Gulf Coast Friday, according to the weather service. The storm should weaken by Saturday, bringing lighter snow between 1 and 3 inches to parts of the Northeast, the Mid-Atlantic and the Ohio Valley before exiting off the Carolinas.

The National Weather Service has issued a winter storm warning for many areas of Georgia. Here's a look at the forecast and what agencies are doing.

Overnight, the National Weather Service upgraded the entire Tri-State area to a winter storm warning for Friday.