The flow at Point of Rocks is currently above 2,000 cfs and it appears that flow is going to stay above that level for at least a week. Daily monitoring is discontinued until flows drop below the 2,000 cfs threshold. The Washington D.C. area and the eastern portion of the Basin received precipitation totals between 0.5 to 2 inches. However, most of the Basin, particularly in the western portion, received precipitation totals of 0 to 0.1 inches. The National Weather Service (NWS) quantitative precipitation forecasts (qpf) indicate a chance of 0.25 to 1.6 inches of accumulated rain across the Basin over the next 5 days. Any break in the precipitation forecast may allow flows to recess quickly. Therefore, we ask that you and your organizations stay prepared to resume daily monitoring on short notice.
Thank you for your cooperation in this past week's data submissions.
Daily Flows:
Little Falls gage flow 07/12: 1180 MGD (1830 cfs)
Little Falls gage flow 07/13: 1980 MGD (est., based on recently available real time data) (3060 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 07/12: 1540 MGD (2390 cfs)
Point of Rocks flow 07/13: 1960 MGD (est., based on recently available real time data) (3030 cfs)
Net Potomac Production (07/12/10):
FW Corbalis raw water withdrawal (Potomac): 134 MGD
WSSC Potomac Production: 134 MGD
Aqueduct withdrawal: 185 MGD
Total Potomac demand: 454 MGD