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.

Snow, freezing rain and rain are underway in the southern Plains as a potent winter storm strengthens Thursday.

Snow is no longer falling over most of North Texas after the first winter storm of the season. The National Weather Service dropped a winter storm warning early Friday morning, and let a winter weather advisory expire at 12 p.

A low-pressure system is moving across the country, delivering rain, snow, and ice to much of the southeast. This same system will be making its way along the east coast early this weekend, bringing a chance for accumulating snow to the tri-state.

The latest winter storm is bringing snow and ice to thousands of counties across more than 20 states. Here’s what to know about the forecast, key cities and expected impacts.