From the National Weather Service for the following counties:
Southern Centre-Huntingdon-Mifflin-Juniata-Franklin- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia-Perry-Dauphin-Schuylkill-Lebanon- Cumberland-Adams-York-Lancaster-
Widespread fog with patches of dense fog will occur through the middle of the morning.
Temperatures are in the lower 30s in spots, and this could lead to icy spots on area roads, mainly on ramps and bridges.
Stay alert for icy spots and slow down in areas of fog. Black ice is nearly indistinguishable from a wet roadway. Conditions should improve after sunrise as drier air moves into the area and the sun warms the surfaces.