Big differences today between the GFS model and the NAM model. The latest NAM cranks out 3-5 inches of snow for PHL.

The GFS has cranked out much less snow in the afternoon run, just a coating.

UPDATE:  tonight’s GFS has 1-2 inches of snow for PHL.

This clipper could surprise in either direction, most likely in the lower accumulation range. Both models start the snow after 1PM and taper to flurries about 7 PM.