Major Flood
19 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
16 ft
Minor Flood
14 ft
Action Stage
12 ft
What Floods at Each Level
22.5 ft
The bridge 2 miles south and 1 mile east of Westport will be overtopped
22 ft
Large portions of Westport will have water 2 to 3 feet deep
21 ft
The bridge on Brown County Road 10a is overtopped
20.5 ft
The water will reach the bottom of the bridge 2 miles south and 1 mile east of Westport. The bridge east of Westport will be overtopped
19 ft
The community of Westport begins to flood
18.5 ft
The water will reach the bottom of the bridge east of Westport
17.5 ft
Water reaches the bottom of the bridge north of Westport
16 ft
Several gravel roads along the river begin to flood
14.5 ft
The bridge northwest of Kruse Dam will be overtopped
14 ft
The county road east of Westport becomes impassable
12.5 ft
The water will reach the bottom of the bridge north of Kruse Dam
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 |
|---|---|---|
| Mar 24, 2009 | 22.63 ft | 11,900 cfs |
| Apr 9, 1969 | 22.11 ft | 12,600 cfs |
| Mar 29, 1997 | 21.56 ft | 9,380 cfs |
About This Gauge
Get Flood Alerts for Elm 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 Elm River near Westport?
The Elm River near Westport gauge is maintained by USGS (site 06471500) 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 Elm River near Westport?
The NWS-defined flood stage for Elm River near Westport is 14 feet. Action stage begins at 12 feet. Moderate flooding starts at 16 feet, and major flooding at 19 feet.
How do I get alerts when Elm River rises?
Download StormCast free on Google Play, go to River Gauges, and add Elm River near Westport 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 Elm River near Westport gauge located?
The gauge is located in Brown County, South Dakota at coordinates 45.6561°N, 98.4967°W. USGS site number: 06471500. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: Observations courtesy of U.S. Geological Survey
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
- 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.
- Gauge reading may be affected by ice.