There remains some uncertainty about the expected light snowfall late Thursday night into Friday morning.

The latest NAM continues with a very low QPF for Philadephia, only 0.07 inches water.   The GFS has been consistently higher at 0.24 inches water.

My impression is that the low QPF of the NAM is more likely correct.  That means about a dusting to an inch by 9 AM Friday morning. More south of the city and into Delaware and less north and west of the city.  I’ll update if things change.