PHILADELPHIA, PENNSYLVANIA — A developing coastal storm system is drawing growing attention from forecasters as updated weather models suggest increasing odds that the northern edge of the system could deliver a quick burst — or “thump” — of snowfall around Philadelphia overnight Sunday into Monday morning.
While much of the storm’s energy remains offshore, subtle shifts in track and intensity are raising the possibility that southeastern Pennsylvania could be clipped by the system’s northern precipitation shield.
Coastal Low Strengthens Off the Mid-Atlantic Coast
Latest model guidance shows a deepening low-pressure system consolidating near the Carolina coastline before tracking northeastward into the western Atlantic. Upper-level wind maps indicate a strong circulation centered near eastern North Carolina, with tightening pressure gradients and strengthening winds over the Atlantic waters.
By early Monday morning, the system appears well-organized offshore of the Delmarva Peninsula and the New Jersey coast, with precipitation wrapping around the western flank of the storm…