Flow at Point of Rocks has staid fairly steady over the past couple of days. In contrast, flow at Little Falls has risen due to recent rainfall but may fall in the near future. Yesterday, precipitation amounts of 1 to 1.5 inches fell near northern Frederick, Carroll, Baltimore, and some neighboring counties and down near the Washington, D.C. area. But most of the basin received 0 to 0.5 inches of rain. Scattered showers and thunderstorms are expected throughout the basin for the next several days. The Mid-Atlantic River Forecasting Center quantitative precipitation forecasts (qpfs) indicate that most of the basin will receive between a 1/4 and 1/2 inch of rain over the next 48 hours and between 1/4 to 3/4 inches over the next 5 days.
Daily Flows:
Little Falls gage flow 08/04: 830 MGD (1280 cfs)
Little Falls gage flow 08/05: 1010 MGD (est., based on recently available real time data) (1560 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 08/04: 910 MGD (1410 cfs)
Point of Rocks flow 08/05: 920 MGD (est., based on recently available real time data) (1420 cfs)
Net Potomac Production (08/04/10):
FW Corbalis raw water withdrawal (Potomac): 126 MGD
WSSC Potomac Production: 152 MGD
Aqueduct withdrawal: 181 MGD
Total Potomac demand: 459 MGD