Interesting read from Mount Holly. Didn't see this update, which is a couple hours old now..
715 pm update: This was supposed to be a quiet(er) evening... Light rain/showers continue to plague Delmarva and coastal New Jersey early this evening. The post-frontal low-level environment and the unusually cold air aloft have combined to create a favorable environment for cold-air funnels on the northwest side of the precipitation shield. Several reports of these have been received from the Fenwick Island area, on upper portions of Delaware Bay, as well as the southeast New Jersey coast. These are expected to remain off the surface (i.e., harmless). Meanwhile, an ambient/slow-moving boundary/region of confluent low-level flow is generating showers along the western shore of Chesapeake Bay north-northeast into far southeast Pennsylvania and adjacent portions of New Jersey. These showers are developing in a still-favorable environment for occasional downpours (given the preexisting moist low-level environment). Would not be surprised to see a few spots receive a quick quarter to half inch of rain in these downpours. Given the slow movement of the confluent zone, some locally heavy rain may occur with the strongest/most persistent showers.