Flows in most Potomac basin tributaries are slowly dropping, but recent rain events have increased flow in the Shenandoah River, and this should help to maintain flows at Point of Rocks and Little Falls over the next several days. No significant precipitation fell in the basin yesterday, and the National Weather Service predicts no rain over its 5-day forecast period. The US Army Corps of Engineers initiated a 24-hr 870 cfs AVF (Artificially Varied Flow) release from Jennings Randolph Reservoir yesterday morning.
Daily Flows:
Little Falls gage flow 08/28: 710 MGD (1100 cfs)
Little Falls gage flow 08/29: 810 MGD (est., based on recently available real time data) (1260 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 08/28: 1030 MGD (1600 cfs)
Point of Rocks flow 08/29: 1030 MGD (est., based on recently available real time data) (1600 cfs)
Net Potomac Production (08/28/10):
FW Corbalis raw water withdrawal (Potomac): 114 MGD
WSSC Potomac Production: 137 MGD
Aqueduct withdrawal: 169 MGD
Total Potomac demand: 420 MGD