Major Flood
30 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
26 ft
Minor Flood
21 ft
Action Stage
18 ft
What Floods at Each Level
38 ft
Structures south of Promise Rd are in danger of flooding.
30 ft
The bridge at the gauge location on BIA-7 is overtopped.
28 ft
Water reaches the bottom of the bridge at the gauge location on BIA-7.
26 ft
The nearby higher ridges begin to be overtopped which may begin to threaten some lower lying roads.
24 ft
Most of the floodplain is underwater.
21 ft
The higher banks are overtopped and water enters the broader floodplain. Flooding possible along Promise Rd at bridge on Virgin Creek south of Moreau River.
18 ft
The lowest banks are overtopped and some ditches begin to fill.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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About This Gauge
USGS Site
NWS LID
MRPS2
River
Moreau River (SD)
County
Dewey, SD
Coordinates
45.3431°N, 100.6133°W
Get Flood Alerts for Moreau River (SD)
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 Moreau River (SD) at Promise?
The Moreau River (SD) at Promise gauge is maintained by USGS (site 06361000) 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 Moreau River (SD) at Promise?
The NWS-defined flood stage for Moreau River (SD) at Promise is 21 feet. Action stage begins at 18 feet. Moderate flooding starts at 26 feet, and major flooding at 30 feet.
How do I get alerts when Moreau River (SD) rises?
Download StormCast free on Google Play, go to River Gauges, and add Moreau River (SD) at Promise 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 Moreau River (SD) at Promise gauge located?
The gauge is located in Dewey County, South Dakota at coordinates 45.3431°N, 100.6133°W. USGS site number: 06361000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Moreau River (SD)
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Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey
- No forecasts are available for this location