Situational Awareness (Monday, 2025-12-08)
According to information from the Middle Atlantic River Forecast Center, the southern portion of the Potomac watershed received a small amount of precipitation during the past 24 hours. Average accumulations of about 1/10 of an inch are expected over the next 3 days.
Special Conditions
None
Daily flows:
Little Falls gage flow 2025-12-07: 1480 MGD (2290 cfs)
Little Falls gage flow 2025-12-08: 1338 MGD (est., based on recently available real-time data) (2070 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 2025-12-07: 1390 MGD (2150 cfs)
Point of Rocks flow 2025-12-08: 1441 MGD (est., based on recently available real-time data) (2230 cfs)
Yesterday's estimated daily flows:
Great Falls estimated flow 2025-12-07: 1480 MGD (2290 cfs)
Note: Estimated flow below Great Falls intake is flow at Little Falls plus Little Falls water supply withdrawal.
Yesterday's Washington metropolitan area Potomac River withdrawals and discharges (2025-12-07):
Fairfax Water Corbalis withdrawal - Potomac: 87 MGD
WSSC Water Potomac withdrawal: 143 MGD
Washington Aqueduct withdrawal - Great Falls: 121 MGD
Washington Aqueduct withdrawal - Little Falls: 0 MGD
Loudoun Water withdrawal: 10 MGD
Loudoun Water Broad Run discharge: 8 MGD
Total Potomac withdrawal: 360 MGD
Total net Potomac withdrawal: 352 MGD
Loudoun Water Potomac River (PR) flow values for drought operations protocol (based on yesterday's flows):
QPR: 2150 cfs
QPR, obs: 2150 cfs
QPR, WS: 0 cfs
Interstate Commission on the Potomac River Basin