According to the Middle Atlantic River Forecasting Center, no rain fell in the basin over the past 24 hours. Between 0.25 and 1 inch of rain is expected over the next 3 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.
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: 0.02 (inches)
Past 7-day cumulative area-weighted average basin precip: 0.44 (inches)
Daily Flows:
Little Falls gage flow 2019-10-14: 1228 MGD (1900 cfs)
Little Falls gage flow 2019-10-15: 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 2019-10-14: 1461 MGD (2260 cfs)
Point of Rocks flow 2019-10-15: 1519 MGD (est., based on recently available real time data) (2350 cfs)
Yesterday's Net Potomac withdrawal (2019-10-14):
FW Corbalis withdrawal (Potomac): 119 MGD
WSSC Potomac withdrawal: 176 MGD
Aqueduct withdrawal: 148 MGD
Loudoun withdrawal: 9 MGD
Total Potomac withdrawal: 452 MGD