Not really, honestly. Yesterday's 12z, 18z, and last night's 00z all had 2" through the Beltway. Even 06z had blues north of DC. Could be a slight improvement for a few specific yards, I guess.
Pretty dangerous panel on the RGEM. Thankfully, the band in the west seems to sort of get absorbed by the coastal and still swings through the metro, but one could see a screw zone developing.
RGEM continues the trend shown by some of the other short range models -- doesn't really start the precip in DC metro until about 1am as the developing coastal robs the moisture. It does manage to come down pretty hot and heavy for three good hours from 2-5am though.