Situational Awareness (Tuesday, 2026-01-06)
According to information from the Middle Atlantic River Forecast Center, no rain fell in the Potomac watershed above Little Falls during the past 24 hours. Over the next 3 days, precipitation accumulations of 0.01 to 0.50 inches are expected, with the higher amounts predicted in the northwestern portion of the watershed. River flows are expected to rise toward the end of the coming week, with predicted watershed average accumulations of approximately 1/2 inch.
Special Conditions
None
Daily flows:
Little Falls gage flow 2026-01-05: 1189 MGD (1840 cfs)
Little Falls gage flow 2026-01-06: 1144 MGD (est., based on recently available real-time data) (1770 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 2026-01-05: 1118 MGD (1730 cfs)
Point of Rocks flow 2026-01-06: 1247 MGD (est., based on recently available real-time data) (1930 cfs)
Yesterday's estimated daily flows:
Great Falls estimated flow 2026-01-05: 1189 MGD (1840 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 (2026-01-05):
Fairfax Water Corbalis withdrawal - Potomac: 86 MGD
WSSC Water Potomac withdrawal: 154 MGD
Washington Aqueduct withdrawal - Great Falls: 124 MGD
Washington Aqueduct withdrawal - Little Falls: 0 MGD
Loudoun Water withdrawal: 9 MGD
Loudoun Water Broad Run discharge: 8 MGD
Total Potomac withdrawal: 373 MGD
Total net Potomac withdrawal: 364 MGD
Loudoun Water Potomac River (PR) flow values for drought operations protocol (based on yesterday's flows):
QPR: 1730 cfs
QPR, obs: 1730 cfs
QPR, WS: 0 cfs
Interstate Commission on the Potomac River Basin