Potomac River
Live and historical streamflow for every active USGS gauge on the Potomac River — current discharge (CFS), gage height, and how today's flow ranks against the long-term record for this date. Latest reading .
About the Potomac River
The Potomac River is monitored by 18 active USGS stream gauges across West Virginia, Maryland, Virginia and District of Columbia. The river runs approximately 383 miles. 16 of 18 gauges are running above normal for this date. The strongest flow on the river right now is at Potomac River Near Wash, DC Little Falls Pump Sta (38,900 cfs).
See the glossary for how percentile rank and flow conditions are calculated from the long-term USGS record.
Data source: USGS National Water Information System