...Icy spots will develop on some side roads, untreated parking
lots and sidewalks overnight across New Jersey, Delaware, eastern
sections of Pennsylvania and Maryland...
Temperatures well below freezing will refreeze some of the
leftover moisture from Wednesday's snowfall, causing slippery
spots on less traveled pavements and possibly freezing some car
doors shut. Be careful when stepping outside and traveling some of
the side roads or moving through the parking lots.
It will take a while for the sun to begin the melting process
late Thursday morning.