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Weather Forecast Office Riverton, WY

Missouri Basin River Forecast Center

Hydrograph

River at a Glance

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Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period Short-term Probabilistic Guidance (Experimental)

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Printable Image About this graph Tabular Data (UTC) Tabular Data (MDT) Datum: NGVD29 Metadata

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions NOTE: Forecasts for the Bighorn River at Basin are issued as needed during times of high water, but are not routinely available.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Downstream Gauge

Flood Categories (in feet) Major Flood Stage: 13 Moderate Flood Stage: 11 Flood Stage: 10.5 Action Stage: 9.5 Low Stage (in feet): -9999 Historic Crests (1) 10.80 ft on 06/11/2011 (2) 10.49 ft on 06/07/1991 (3) 10.00 ft on 06/15/1997 (4) 9.73 ft on 05/29/2019 (5) 9.72 ft on 06/17/2010 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 7.19 ft on 03/08/2020 (2) 9.73 ft on 05/29/2019 (3) 9.39 ft on 06/08/2018 (4) 9.46 ft on 06/13/2017 (5) 9.65 ft on 10/04/2016 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available. For more information on your flood risk go to www.floodsmart.gov. Show FEMA's National Flood Hazard Layers FEMA's National Flood Hazard Layers not showing? Why aren't the FEMA National Flood Hazard Layers showing on the ESRI Map? Possible reasons: There are no FEMA National Flood Hazard Layers for the location which you are viewing on ESRI Maps. The FEMA Web Mapping Service (WMS) is down. Note: Your zoom level may have changed. ESRI's zoom levels must be between 14 and 16 to show National Flood Hazard layers.

Zoom Level:14 Legend FEMA Layer Gauge Location 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

If you notice any errors in the below information, please contact our Webmaster
11	Extensive major agricultural flooding upstream and downstream of Basin. Low lying areas along county road just east of bridge may be under water. Water begins to totally inundate boat ramp and adjacent house near boat ramp in Basin.
10.8	Record stage---(6/11/2011)
10.5	Flood stage. Widespread major agricultural flooding upstream and downstream of Basin. Water begins to encroach boat ramp and adjacent house near boat ramp in Basin.
10.49	Record flow---19,500 cfs (6/7/1991).
10	Moderate to major agricultural flooding intensifies and becomes more widespread upstream and downstream of Basin.
9.5	Bankfull stage. Minor agricultural flooding continues to expand upstream and downstream of Basin.
9	Minor agricultural flooding begins upstream and downstream of Basin.
Photos (1) Looking Upstream---Moderate Flow (2) Looking Downstream---Moderate Flow (3) Looking Upstream---Low Flow (4) Looking Downstream---Low Flow

About This Location

Latitude: 44.383290° N, Longitude: 108.036220° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 10.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 3821.29 ft 3831.79 ft Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Basin

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Precipitation Graphics Water Supply Graphics Flood Potential Graphics Drought Graphics Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Snow Information

Collaborative Agencies 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 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:28 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities