It's been a while since it last snowed in Mobile, but snow is in the forecast for the city on Tuesday, and a winter storm watch is in effect. The photo above is from the Mobile office of the National Weather Service from a rare south Alabama snow in December of 1996. Joe Maniscalco/National Weather Service

The National Weather Service has issued a Winter Storm Watch for the Pensacola area and said there's a 50% chance the region will see snow amounts of 1 to 3 inches on Tuesday. If there's no snow, there will be freezing rain and ice accumulation.

Twenty states, from Texas to Delaware, were on alert Friday for snow and ice as the storm continued to move across the South.