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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 Cheyenne River near Wasta are issued as needed during times of high water, but are not routinely available.
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Downstream Gauge Downstream Gauge - near Plainview
Zoom Level:12
Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 15
Flood Stage: 13
Action Stage: 11
Low Stage (in feet): -9999

Historic Crests
(1) 18.00 ft on 05/15/1920
(2) 16.25 ft on 03/05/1982
(3) 14.50 ft on 06/13/1915
(4) 14.03 ft on 05/16/2015
(5) 13.97 ft on 03/18/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.60 ft on 10/13/2021
(2) 4.87 ft on 05/24/2021
(3) 3.31 ft on 03/01/2020
(4) 12.76 ft on 08/02/2019
(5) 13.97 ft on 03/18/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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Gauge LocationGauge Map Marker
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
18 Near record flooding.
17 Extensive flooding along the Cheyenne River with inundation of structures and roads.
16 Flooding of agricultural land around Wasta. Some inundation of structures and roads are possible.
15.3 Water reaches the lower portion of the Jensen Road Bridge.
14 Water may cover the parking lot of the westbound I-90 rest area. Widespread flooding of agricultural land.
13.5 Water may begin to affect the railbed of the nearby railroad bridge.
13 Water may begin to cause flooding around the I-90 westbound rest area. Water may approach the picnic and parking areas.
11 The lowest areas along the river begin to flood.
10 Water reaches the lower deck of the railroad bridge.
(1) Looking upstream from the gage
(2) Agricultural flooding along the Cheyenne River on May 16, 2015.
(3) Flooding of westbound I-90 Rest Area on May 16, 2015 - gage height ~14 ft.
(4) Flooding of westbound I-90 Rest Area on May 16, 2015 - stage ~14 ft.
(5) Looking upstream on May 16, 2015 from the gage.
(6) Looking upstream
(7) Looking downstream

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
How low could the river get?
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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
Rapid City Weather Forecast Office
300 East Signal Drive
Rapid City, SD 57701-3800
(605) 341-7531
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Page last modified: 2-Nov-2020 7:28 PM
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