Major Flood
12 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
11 ft
Minor Flood
10.5 ft
Action Stage
10 ft
What Floods at Each Level
11 ft
Water floods low lying areas near Highway 287.
10 ft
Low lying fields flood.
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 |
|---|---|---|
| Jun 11, 1997 | 12.22 ft | 34,000 cfs |
| Jun 5, 1948 | 11.77 ft | 32,000 cfs |
| Jun 14, 2011 | 11.53 ft | 29,500 cfs |
About This Gauge
USGS Site
NWS LID
TOSM8
River
Missouri River
County
Broadwater, MT
Coordinates
46.1466°N, 111.4203°W
Get Flood Alerts for Missouri 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 Missouri River at Toston?
The Missouri River at Toston gauge is maintained by USGS (site 06054500) 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 Missouri River at Toston?
The NWS-defined flood stage for Missouri River at Toston is 10.5 feet. Action stage begins at 10 feet. Moderate flooding starts at 11 feet, and major flooding at 12 feet.
How do I get alerts when Missouri River rises?
Download StormCast free on Google Play, go to River Gauges, and add Missouri River at Toston 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 Missouri River at Toston gauge located?
The gauge is located in Broadwater County, Montana at coordinates 46.1466°N, 111.4203°W. USGS site number: 06054500. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Missouri River
On This River
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice during winter months.
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.