Monitoring Reports

During periods of drought, the Cooperative Water Supply Operations on the Potomac (CO-OP) helps manage the Washington metropolitan area water supply system by coordinating withdrawals from the Potomac River and off-river reservoirs and recommending releases from upstream reservoirs when forecasted flow in the river is not sufficient to meet expected needs. These needs include water demands and an environmental flow-by of 100 million gallons per day (MGD) on the Potomac River at Little Falls dam near Washington, D.C.

Daily Potomac flow and demand update (Thursday, 2023-11-16)

Submitted by admin1 on Thu, 11/16/2023 - 14:25

Situational Awareness (Thursday, 2023-11-16)

River flows have been mostly holding steady over the past week. No rain fell in the basin yesterday.  About ¼ of an inch of rain is expected over the next 3 days. The rainfall outlook for the next seven days is very promising, with a forecasted total of about 1.3 inches.

Daily Potomac flow and demand update (Tuesday, 2023-11-14)

Submitted by admin1 on Tue, 11/14/2023 - 13:15

Situational Awareness (Tuesday, 2023-11-14)
According to the Middle Atlantic River Forecast Center predictions, no rain is expected over the next three days. The week-long outlook expects a total of approximately 0.3 inches of rain in the basin. This 0.3-inch amount is a basin average, where some of the driest areas of the Potomac are expected to receive up to 0.25 inches in the next 7 days. 

Flow at Potomac River at Point of Rocks, MD, has been steady since November 10th. 

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