Bad night around IAD.
Things quieted down after 9-10, but then picked up big time around midnight. IAD ended Fri with a record for the day 2.2+ inches of rain ... areas north/west got upwards of 4 inches.
Seems the front is taking its time coming through the area and everyone in the DC metro area is under a flood watch until late Sat.
Round 2 of "Total Mess" is expected today.