According to the Middle Atlantic River Forecast Center, no rain fell in the basin over the past 24 hours. Between 0.1 and 0.75 inches of rain is expected over the next 7 days.
Although flows at the USGS gage at Point of Rocks are currently above 2000 cfs, the trigger for daily monitoring, daily monitoring will be continued at this time due to limited rain in the forecast.
Recent basin-wide average precipitation (above Little Falls):
(based on CO-OP's Low Flow Forecast System analysis of Middle Atlantic River Forecast Center (MARFC) gridded multisensor precipitation estimates)
Yesterday's area-weighted average basin precip: 0 (inches)
Past 3-day cumulative area-weighted average basin precip: 0.42 (inches)
Past 7-day cumulative area-weighted average basin precip: 1.08 (inches)
Daily Flows:
Little Falls gage flow 2019-10-10: 1293 MGD (2000 cfs)
Little Falls gage flow 2019-10-11: 1396 MGD (est., based on recently available real time data) (2160 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 2019-10-10: 1461 MGD (2260 cfs)
Point of Rocks flow 2019-10-11: 1461 MGD (est., based on recently available real time data) (2260 cfs)
Yesterday's Net Potomac withdrawal (2019-10-10):
FW Corbalis withdrawal (Potomac): 106 MGD
WSSC Potomac withdrawal: 175 MGD
Aqueduct withdrawal: 146 MGD
Loudoun withdrawal: 10 MGD
Total Potomac withdrawal: 437 MGD