Freezing rain and cold temperatures could cause icing and pose dangerous travel for some neighborhoods in the greater Philadelphia area into Friday evening.
The National Weather Service issued a winter weather advisory through 7 p.m. for Berks, Lehigh, Northampton, eastern Chester and eastern Montgomery counties in Pennsylvania, as well as for Hunterdon County in New Jersey.
Rain turned into areas of freezing rain in the afternoon. Though the freezing rain will end, a rapid temperature drop to freezing and below freezing levels may quickly turn untreated surfaces icy.
Though only a light glaze is expected, it could make for very slippery sidewalks, roads and especially bridges and overpasses, the NWS warned.
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The cold temperatures will stick around into the weekend, with Saturday's highs feeling like the teens.