TidalMapPotomac River at Edwards Ferry near Poolesville,md Water Level Today
NWS river forecast
| When | Stage | Flow |
|---|
Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.
Last 30 days
About this gauge
USGS gauge 01644148 sits on the Potomac River and reads everything draining 11,130 square miles of the Middle Potomac-Catoctin basin. Its datum sits 179 feet above sea level NAVD88.
Where this gauge sits in the drainage
Three gauged sites sit upstream of here. The closest is Potomac River at Point of Rocks, MD, reading 9,651 square miles. This gauge adds the 1,479 square miles that drain in between. Downstream the next reading comes from Potomac River near Wash, Dc Little Falls Pump Sta at 11,560 square miles, so what passes this gauge is about 96% of the water measured there.
Flood stages and record crests
The Potomac River reaches flood stage at this gauge at 15 feet. NWS starts watching it at 12.2 feet. The highest crest on record is 22.4 feet, in June 2018.
| Category | Gage height |
|---|---|
| Action | 12.2 ft |
| Minor flooding | 15 ft |
| Moderate flooding | 17 ft |
| Major flooding | 24 ft |
| When | Crest |
|---|---|
| June 2018 | 22.4 ft |
| September 2018 | 21.8 ft |
| September 2018 | 21.6 ft |
| May 2025 | 21.2 ft |
| May 2014 | 21.1 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge EDFM2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- Broad Run near Leesburg, VA
- Limestone Branch near Leesburg, VA
- Goose Creek near Leesburg, VA
- Seneca Creek at Dawsonville, MD
- Monocacy River near Dickerson, MD
- South Fork Catoctin Creek at Rt 698 near Waterford, VA
- North Fork Catoctin Creek at Rt 681 near Waterford, VA
- Catoctin Creek at Taylorstown, VA
- Potomac River at Point of Rocks, MD
- Tenmile Creek near Boyds, MD
- Tenmile Creek near Clarksburg, MD
- Bennett Creek at Park Mills, MD
Live streamflow and gage height: USGS gauge 01644148. Percentile context computed against the gauge's period of record. Not for navigation.
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