Major Flood
11 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
10 ft
Minor Flood
9 ft
Action Stage
8 ft
What Floods at Each Level
9.9 ft
Water into USGS gage house.
8.8 ft
Water may be on small bridges and around railroad bridge footing.
8.7 ft
February 2019...Ice Jam. Water level near 8.7 feet. Water flooding farm field next to river.
8.3 ft
Minor lowland flooding near Logan.
8.1 ft
Lowland flooding occurs. Water may cross some smaller roads.
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 |
|---|---|---|
| Feb 4, 1963 | 11.88 ft | — |
| Feb 16, 1969 | 11.85 ft | — |
| Feb 28, 2019 | 10.87 ft | 11,400 cfs |
About This Gauge
USGS Site
NWS LID
LOGM8
River
Gallatin River
County
Gallatin, MT
Coordinates
45.8854°N, 111.4383°W
Get Flood Alerts for Gallatin River
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 Gallatin River at Logan?
The Gallatin River at Logan gauge is maintained by USGS (site 06052500) 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 Gallatin River at Logan?
The NWS-defined flood stage for Gallatin River at Logan is 9 feet. Action stage begins at 8 feet. Moderate flooding starts at 10 feet, and major flooding at 11 feet.
How do I get alerts when Gallatin River rises?
Download StormCast free on Google Play, go to River Gauges, and add Gallatin River at Logan 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 Gallatin River at Logan gauge located?
The gauge is located in Gallatin County, Montana at coordinates 45.8854°N, 111.4383°W. USGS site number: 06052500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Gallatin River
On This River
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice during winter months.