I stand corrected! Was in Philly at the time...what an event. Fast mover, but something like 8" - 10" of rain fell in under 12 hours. It was the only time I had school canceled for rain as a kid.
Impressive training along Worcester and Wicomico counties. Salisbury ASOS shows NW winds, Wallops Island is SW. Pretty good droplet size as well per the KDP on Wakefield's radar.
The flash drought occurrences seem to be increasing infrequency over the past decade. Though these events pale in comparison to the drought of 1999 - 2002.