Major Flood
10 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
8 ft
Minor Flood
6 ft
Action Stage
5 ft
What Floods at Each Level
10 ft
Significant flooding is occurring along Gunpowder Falls upstream of Prettyboy Reservoir, with roads and structures affected.
8 ft
Grave Run Road is flooded. Flooding of structures is occurring at River Valley Ranch.
6 ft
Due to a combination of high water on Gunpowder Falls and backwater on Muddy Creek, water enters buildings at River Valley Ranch.
5 ft
Water overflows the banks into the floodplain but few 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 27, 2009 | 10.02 ft | 6,780 cfs |
| Jul 24, 2018 | 7.69 ft | 3,740 cfs |
| Sep 8, 2011 | 6.93 ft | — |
About This Gauge
USGS Site
NWS LID
GFHM2
River
Gunpowder Falls
County
Baltimore, MD
Coordinates
39.6897°N, 76.7814°W
Get Flood Alerts for Gunpowder Falls
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 Gunpowder Falls at Hoffmanville?
The Gunpowder Falls at Hoffmanville gauge is maintained by USGS (site 01581810) 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 Gunpowder Falls at Hoffmanville?
The NWS-defined flood stage for Gunpowder Falls at Hoffmanville is 6 feet. Action stage begins at 5 feet. Moderate flooding starts at 8 feet, and major flooding at 10 feet.
How do I get alerts when Gunpowder Falls rises?
Download StormCast free on Google Play, go to River Gauges, and add Gunpowder Falls at Hoffmanville 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 Gunpowder Falls at Hoffmanville gauge located?
The gauge is located in Baltimore County, Maryland at coordinates 39.6897°N, 76.7814°W. USGS site number: 01581810. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Gunpowder Falls
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice.