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This probabilistic forecast is issued by the Missouri Basin River Forecast Center.
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About this graph
Forecasts for the Elm River near Westport are issued as needed during times of high water, but are not routinely available.
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Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 19
Moderate Flood Stage: 16
Flood Stage: 14
Action Stage: 12
Low Stage (in feet): -9999

Historic Crests
(1) 22.63 ft on 03/25/2009
(2) 22.11 ft on 04/10/1969
(3) 21.56 ft on 03/30/1997
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 20.45 ft on 07/27/2020
(2) 20.80 ft on 04/04/2019
(3) 13.20 ft on 04/22/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
22.5 The bridge 2 miles south and 1 mile east of Westport will be overtopped
22 Large portions of Westport will have water 2 to 3 feet deep
21 The bridge on Brown County Road 10a is overtopped
20.5 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 The community of Westport begins to flood
18.5 The water will reach the bottom of the bridge east of Westport
17.5 Water reaches the bottom of the bridge north of Westport
16 Several gravel roads along the river begin to flood
14.5 The bridge northwest of Kruse Dam will be overtopped
14 The county road east of Westport becomes impassable
12.5 The water will reach the bottom of the bridge north of Kruse Dam

Other Real-time and/or Archive Data Sources:
Additional Information Collapse
How low could the river get?
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Aberdeen Weather Forecast Office
824 Brown County 14 South
Aberdeen, SD 57401
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