TidalMapLimestone Branch near Leesburg, VA 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 01643590 sits on Limestone Branch and reads everything draining 7.9 square miles of the Middle Potomac-Catoctin basin. Its datum sits 221 feet above sea level NAVD88. Daily flow has been on record here since 2001, 25 years of it.
Where this gauge sits in the drainage
No gauged site sits above this one on the mainstem, so this is the first published reading on the river. Downstream the next reading comes from Potomac River at Edwards Ferry near Poolesville,md at 11,130 square miles, so what passes this gauge is about 0% of the water measured there. Water passing here goes on to Potomac River near Wash, Dc Little Falls Pump Sta.
Normal flows here
Limestone Branch runs a median of 3.9 cfs at this gauge across 25 years of record. March is the fullest month at a median 7.1 cfs, and September the leanest at 1.4 cfs. The highest daily mean on record is 976 cfs in 2003, and the lowest is 0.3 cfs in 2010.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 5.3 cfs | 136% |
| Feb | 6.5 cfs | 167% |
| Mar | 7.1 cfs | 182% |
| Apr | 6.4 cfs | 164% |
| May | 5.4 cfs | 138% |
| Jun | 3.2 cfs | 83% |
| Jul | 1.9 cfs | 49% |
| Aug | 1.5 cfs | 38% |
| Sep | 1.4 cfs | 36% |
| Oct | 2.1 cfs | 54% |
| Nov | 3.1 cfs | 79% |
| Dec | 5.2 cfs | 133% |
Medians from the USGS daily-statistics record, 2001 to 2026. A month at 100% is running at its own long-term median.
Flood stages and record crests
Limestone Branch reaches flood stage at this gauge at 7 feet. NWS starts watching it at 5 feet. The highest crest on record is 11.2 feet, in September 2003.
| Category | Gage height |
|---|---|
| Action | 5 ft |
| Minor flooding | 7 ft |
| Moderate flooding | 8 ft |
| Major flooding | 10 ft |
| When | Crest |
|---|---|
| September 2003 | 11.2 ft |
| September 2015 | 9.1 ft |
| April 2011 | 8.1 ft |
| May 2014 | 7.8 ft |
| January 2005 | 7.7 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge LBUV2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- South Fork Catoctin Creek at Rt 698 near Waterford, VA
- Potomac River at Edwards Ferry near Poolesville,md
- North Fork Catoctin Creek at Rt 681 near Waterford, VA
- Catoctin Creek at Taylorstown, VA
- Potomac River at Point of Rocks, MD
- Monocacy River near Dickerson, MD
- Goose Creek near Leesburg, VA
- Broad Run near Leesburg, VA
- Potomac River at Burkittsville Rd at Brunswick, MD
- North Fork Goose Creek at Rt 729 near Lincoln, VA
- Bennett Creek at Park Mills, MD
- Seneca Creek at Dawsonville, MD
Live streamflow and gage height: USGS gauge 01643590. Percentile context computed against the gauge's period of record. Not for navigation.
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