Potomac River flow at Point of Rocks is hovering around 2000 cfs, the trigger for CO-OP daily drought monitoring. It should be noted that flows in the river are not particularly low for this time of year - 2000 cfs is close to the median flow at Point of Rocks in mid-September. The National Weather Service forecast calls for little rain over the next seven days.
The US Army Corps of Engineers made two "artificially varied flow" releases, each of over 1000 cfs and of approximately 12 hour duration, last Saturday and Sunday, Sep 16 and 17. These releases are currently visible at the USGS gage at Hancock.
Daily Flows:
Little Falls gage flow 2017-09-18: 1254 MGD (1940 cfs)
Little Falls gage flow 2017-09-19: 1280 MGD (est., based on recently available real time data) (1980 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 2017-09-18: 1260 MGD (1950 cfs)
Point of Rocks flow 2017-09-19: 1306 MGD (est., based on recently available real time data) (2020 cfs)
Net Potomac Production (2017-09-18):
FW Corbalis raw water withdrawal (Potomac): 108 MGD
WSSC Potomac Production: 139 MGD
Aqueduct withdrawal: 149 MGD
Total Potomac demand: 396 MGD