Major Flood
14 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
12.5 ft
Minor Flood
9 ft
Action Stage
6 ft
What Floods at Each Level
14 ft
Major flooding is ongoing with roads and structures flooded.
12.5 ft
Water covers Regester Street and Hillen Road, and homes near the gauge begin to flood.
9 ft
Yards near the gage and portions of Mount Pleasant Golf Course begin to flood.
8 ft
The river exceeds its banks and begins to flood yards on the right bank.
6 ft
Water begins to overflow the banks near Hillen Road, but no impacts are observed.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Aug 13, 2012 | 10.87 ft | 2,340 cfs |
| Aug 13, 2018 | 9.41 ft | 2,110 cfs |
| Jun 26, 2016 | 8.99 ft | 2,030 cfs |
About This Gauge
USGS Site
NWS LID
IDLM2
River
West Branch Herring Run
County
Baltimore, MD
Coordinates
39.3736°N, 76.5844°W
Get Flood Alerts for West Branch Herring Run
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of West Branch Herring Run at Idlewylde?
The West Branch Herring Run at Idlewylde gauge is maintained by USGS (site 01585200) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for West Branch Herring Run at Idlewylde?
The NWS-defined flood stage for West Branch Herring Run at Idlewylde is 9 feet. Action stage begins at 6 feet. Moderate flooding starts at 12.5 feet, and major flooding at 14 feet.
How do I get alerts when West Branch Herring Run rises?
Download StormCast free on Google Play, go to River Gauges, and add West Branch Herring Run at Idlewylde to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the West Branch Herring Run at Idlewylde gauge located?
The gauge is located in Baltimore County, Maryland at coordinates 39.3736°N, 76.5844°W. USGS site number: 01585200. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.