Widely scattered locations across the upper basin received trace amounts of rain (up to 0.1 inches) over the past 24 hours. Precipitation totaling 0.01 to 0.25 inches is expected in the upper basin over the next three days. Higher amounts of half an inch are also possible in scattered locations in Pennsylvania and along the Virginia-West Virginia border. Flow at Point of Rocks is holding steady above 1500 cfs.
Daily flows:
Little Falls gage flow 2021-08-07: 1286 MGD (1990 cfs)
Little Falls gage flow 2021-08-08: 1286 MGD (est., based on recently available real time data) (1990 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 2021-08-07: 1027 MGD (1590 cfs)
Point of Rocks flow 2021-08-08: 1021 MGD (est., based on recently available real time data) (1580 cfs)
Yesterday's Washington metropolitan area Potomac River withdrawals and discharges (2021-08-07):
Fairfax Water Corbalis withdrawal (Potomac): 108 MGD
WSSC Water Potomac withdrawal: 123 MGD
Washington Aqueduct withdrawal: 135 MGD
Loudoun Water withdrawal: 11 MGD
Loudoun Water Broad Run discharge: 5 MGD
Total Potomac withdrawal: 377 MGD
Total net Potomac withdrawal: 372 MGD
Loudoun Water drought operations protocol river flow values (based on yesterday's flows):
QPR: 1027 cfs
QPR, obs:1027 cfs
QPR, WS: 0 cfs