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Advanced Hydrologic Prediction Service
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This probabilistic forecast is issued by the Colorado Basin River Forecast Center.
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About this graph
Forecasts for the Big Sandy River (WY) above Big Sandy Reservoir are issued routinely year-round.
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Zoom Level:10
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 0
Flood Stage: 0
Action Stage: 7.5
Low Stage (in feet): -9999

Historic Crests
(1) 8.46 ft on 06/03/1986
(2) 8.45 ft on 06/17/1995
(3) 8.10 ft on 06/09/1972
(4) 8.09 ft on 07/02/2011
(5) 8.08 ft on 06/12/1965
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(P): Preliminary values subject to further review.

Recent Crests
(1) 5.08 ft on 06/07/2021
(2) 5.31 ft on 06/08/2020
(3) 5.08 ft on 06/07/2020
(4) 5.54 ft on 06/09/2019
(5) 5.50 ft on 06/19/2018
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
8.5 USBLM roads adjacent to river 1 to 2 miles upstream (near USGS cableway) may have water over them at stages above 9.0 feet.
8.46 Record stage and flow---1,890 cfs (6/3/1986).
7.5 Bankfull stage.
(1) Looking Downstream---Low Flow
(2) Looking Upstream---Low Flow

Other Real-time and/or Archive Data Sources:

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
Riverton Weather Forecast Office
12744 West U.S. Highway 26
Riverton, WY 82501
(307) 857-3898
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Page last modified: 2-Nov-2020 7:28 PM
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