TidalMapWestern Run at Western Run, 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 01583500 sits on Western Run and reads everything draining 60 square miles of the Gunpowder-Patapsco basin. Its datum sits 262 feet above sea level NAVD88. Daily flow has been on record here since 1944, 81 years of it.
Where this gauge sits in the drainage
One gauged site sits upstream of here. The closest is Piney Run at Dover, MD, reading 12 square miles. This gauge adds the 48 square miles that drain in between.
Normal flows here
Western Run runs a median of 55 cfs at this gauge across 81 years of record. April is the fullest month at a median 79 cfs, and September the leanest at 33 cfs. The highest daily mean on record is 7,000 cfs in 1972, and the lowest is 2.5 cfs in 1966.
| Month | Median flow | Share of annual median |
|---|---|---|
| Jan | 64 cfs | 116% |
| Feb | 72 cfs | 131% |
| Mar | 77 cfs | 140% |
| Apr | 79 cfs | 144% |
| May | 69 cfs | 125% |
| Jun | 56 cfs | 102% |
| Jul | 43 cfs | 78% |
| Aug | 37 cfs | 67% |
| Sep | 33 cfs | 60% |
| Oct | 35 cfs | 64% |
| Nov | 43 cfs | 78% |
| Dec | 55 cfs | 100% |
Medians from the USGS daily-statistics record, 1944 to 2026. A month at 100% is running at its own long-term median.
Flood stages and record crests
Western Run reaches flood stage at this gauge at 8 feet. NWS starts watching it at 6 feet. The highest crest on record is 26 feet, in June 1972.
| Category | Gage height |
|---|---|
| Action | 6 ft |
| Minor flooding | 8 ft |
| Moderate flooding | 10 ft |
| Major flooding | 13 ft |
| When | Crest |
|---|---|
| June 1972 | 26 ft |
| September 2011 | 13.3 ft |
| September 1979 | 13.2 ft |
| September 1975 | 12.6 ft |
| July 2018 | 11.3 ft |
Flood categories and crest history from the NOAA National Water Prediction Service, gauge WRWM2. Stages are gage height, not depth. Not for navigation.
Nearby river gauges
- Baisman Run at Broadmoor, MD
- Pond Branch at Oregon Ridge, MD
- Beaverdam Run at Cockeysville, MD
- Piney Run at Dover, MD
- Long Quarter Branch at Lutherville, MD
- Red Run near Owings Mills, MD
- Georges Run near Beckleysville, MD
- Minebank Run near Glen Arm, MD
- Beetree Run at Bentley Springs, MD
- West Branch Herring Run at Idlewylde, MD
- Scotts Level Branch at Rockdale, MD
- Grave Run near Beckleysville, MD
Live streamflow and gage height: USGS gauge 01583500. Percentile context computed against the gauge's period of record. Not for navigation.
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