Daily Potomac flow and demand update (Thursday 2017-10-12)
The National Weather Service (NWS) 24 hour observed precipitation shows that there was 0.10 to 1.75 inches of rain in the Potomac basin above Little Falls. The NWS 3-day forecast predicts accumulations of 0.01 to 0.75 inches of rain over this same area. The US Geological Survey shows that Point of Rocks flow has remained above 2,000 cfs, our trigger for daily monitoring, since yesterday. The NWS Global Ensemble Forecast System simulations predict that flow at Point of Rocks will continue to rise above 2,000 cfs for the next couple of days.