TidalMapTonoloway Creek near Hancock, 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 01613095 sits on Tonoloway Creek and reads everything draining 113 square miles of the Conococheague-Opequon basin. Its datum sits 400 feet above sea level NAVD88. Daily flow has been on record here since 2006, 21 years of it.
Normal flows here
Tonoloway Creek runs a median of 36 cfs at this gauge across 21 years of record. March is the fullest month at a median 122 cfs, and September the leanest at 3.9 cfs. The highest daily mean on record is 4,970 cfs in 2025, and the lowest is 0.3 cfs in 2023.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 71 cfs | 197% |
| Feb | 96 cfs | 267% |
| Mar | 122 cfs | 339% |
| Apr | 101 cfs | 281% |
| May | 90 cfs | 250% |
| Jun | 26 cfs | 72% |
| Jul | 8.7 cfs | 24% |
| Aug | 4.9 cfs | 14% |
| Sep | 3.9 cfs | 11% |
| Oct | 8.6 cfs | 24% |
| Nov | 20 cfs | 54% |
| Dec | 54 cfs | 150% |
Medians from the USGS daily-statistics record, 2006 to 2027. A month at 100% is running at its own long-term median.
Flood stages and record crests
The highest crest on record is 10.3 feet, in March 2008.
| When | Crest |
|---|---|
| March 2008 | 10.3 ft |
| September 2018 | 10.2 ft |
| October 2012 | 9.5 ft |
| September 2021 | 9.2 ft |
| March 2011 | 9 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge HANM2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- Potomac River at Hancock, MD
- Licking Creek at Pectonville, MD
- Sideling Hill Creek near Bellegrove, MD
- Conococheague Creek at Fairview, MD
- Potomac River at Paw Paw, WV
- Marsh Run at Grimes, MD
- Town Creek near Oldtown, MD
- Antietam Creek near Sharpsburg, MD
- Hogue Creek near Hayfield, VA
- Dry Marsh Run near Berryville, VA
- Opequon Creek near Berryville, VA
- Antietam Creek near Waynesboro, PA
Live streamflow and gage height: USGS gauge 01613095. Percentile context computed against the gauge's period of record. Not for navigation.
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