The Philadelphia region's next weather maker arrives Wednesday evening with light snow and could affect roads Thursday morning.

A wintry mix that may begin as early as Wednesday afternoon will lead to icy roads, the National Weather Service warns.

“It’s certainly possible,” agreed Zack Cooper, meteorologist with the National Weather Service Office in Mount Holly, which has issued a winter weather advisory from 12:01 to 10 a.m. Thursday for the entire region for up to an inch of snow and ice and 0.1 inches of freezing rain.