A weak low pressure center will work off of the Carolinas tomorrow evening, spreading some light precipitation northward into the Mid Atlantic after about 4 or 5 PM. There's some question about how far north that precipitation spreads but a period of light rain and/or snow will move into South Jersey and Delaware at minimum...the question is how far north that system gets. The European computer model has been the most aggressive in bringing precipitation into Philly and even into the northern suburbs as the low pressure center depiction on it is a bit stronger than the other models. If the Euro depiction is right light snow will coat into the Philadelphia metro, with a coating to an inch accumulating across South Jersey and Delaware away from the Shore.
This isn't a big storm by any stretch -- it's a minor system -- but it could drop a coating or an inch in spots. We'll keep an eye on it through tomorrow.