Measured flows at Point of Rocks continue to decrease as of this morning. According to USGS, the grasses around the Point of Rocks gage are starting to die off, resulting in less backwater. USGS plans to conduct on-site measurements bi-weekly while low flow conditions persist.
No precipitation fell in the basin yesterday. Over the next 72-hours, the National Weather Service predicts 0.5 to 1.25 inches of rainfall throughout the basin with most areas expecting approximately 0.75 inches.
Daily Flows:
Little Falls gage flow 09/18: 1200 MGD (1860 cfs)
Little Falls gage flow 09/19: 1170 MGD (est., based on recently available real time data) (1810 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 09/18: 1230 MGD (1900 cfs)
Point of Rocks flow 09/19: 1160 MGD (est., based on recently available real time data) (1800 cfs)
Net Potomac Production (09/18/13):
FW Corbalis raw water withdrawal (Potomac): 105 MGD
WSSC Potomac Production: 126 MGD
Aqueduct withdrawal: 149 MGD
Total Potomac demand: 380 MGD