TidalMapUnicorn Branch near Millington, 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 01493000 sits on Unicorn Branch and reads everything draining 20 square miles of the Chester-Sassafras basin. Its datum sits 3 feet above sea level NAVD88. Daily flow has been on record here since 1948, 78 years of it.
Normal flows here
Unicorn Branch runs a median of 17 cfs at this gauge across 78 years of record. March is the fullest month at a median 32 cfs, and September the leanest at 9.9 cfs. The highest daily mean on record is 1,200 cfs in 1999, and the lowest is 0.1 cfs in 1965.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 25 cfs | 147% |
| Feb | 29 cfs | 171% |
| Mar | 32 cfs | 188% |
| Apr | 29 cfs | 171% |
| May | 20 cfs | 118% |
| Jun | 15 cfs | 88% |
| Jul | 12 cfs | 71% |
| Aug | 12 cfs | 71% |
| Sep | 9.9 cfs | 58% |
| Oct | 10 cfs | 59% |
| Nov | 12 cfs | 71% |
| Dec | 18 cfs | 106% |
Medians from the USGS daily-statistics record, 1948 to 2026. A month at 100% is running at its own long-term median.
Flood stages and record crests
The highest crest on record is 9.4 feet, in September 1999.
| When | Crest |
|---|---|
| September 1999 | 9.4 ft |
| August 2011 | 7.7 ft |
| September 1960 | 7.2 ft |
| June 1972 | 7 ft |
| July 1963 | 6.3 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge MLTM2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
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Live streamflow and gage height: USGS gauge 01493000. Percentile context computed against the gauge's period of record. Not for navigation.
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