River flow at Point of Rocks is expected to remain close to CO-OP’s daily monitoring threshold, 2000 cfs, for the next several days. The basin received negligible precipitation yesterday. Precipitation totals between 0.01 and 0.1 inches are forecast for the next three days.
Daily flows:
Little Falls gage flow 2022-11-02: 1280 MGD (1980 cfs)
Little Falls gage flow 2022-11-03: 1260 MGD (est., based on recently available real-time data) (1950 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 2022-11-02: 1241 MGD (1920 cfs)
Point of Rocks flow 2022-11-03: 1351 MGD (est., based on recently available real-time data) (2090 cfs)
Yesterday's Washington metropolitan area Potomac River withdrawals and discharges (2022-11-02):
Fairfax Water Corbalis withdrawal (Potomac): 78 MGD
WSSC Water Potomac withdrawal: 94 MGD
Washington Aqueduct withdrawal: 133 MGD
Loudoun Water withdrawal: 11 MGD
Loudoun Water Broad Run discharge: 6 MGD
Total Potomac withdrawal: 316 MGD
Total net Potomac withdrawal: 310 MGD
Loudoun Water Potomac River (PR) flow values for drought operations protocol (based on yesterday's flows):
QPR: 1920 cfs
QPR, obs: 1920 cfs
QPR, WS: 0 cfs
Note to Loudoun Water: See NWS ensemble flow forecasts (HEFS, GEFS, NAEFS) for Point of Rocks flow for the next 7 days – see https://www.weather.gov/erh/mmefs_marfc?id=PORM2&model=NAEFS.