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This probabilistic forecast is issued by the Northwest River Forecast Center.

	Hydrograph			River at a Glance			Download			Probability Information Weekly Chance of Exceeding Levels Not Available Chance of Exceeding Levels During Entire Period Not Available Short-term Probabilistic Guidance (Experimental)

For official forecast click here

Experimental Short Range Forecast Uncertainty (AHPS) - External Links: Product Description Document | Customer Survey

About this graph

Forecasts for the Snake River near Alpine are issued routinely year-round.

Vertical datum height surveyed by the USGS

Return to Area Map

Upstream Gauge

Zoom Level:11

Flood Categories (in feet)

Not Available

Historic Crests
(1) 38,600 cfs on 06/11/1997
(2) 31,600 cfs on 06/11/1996
(3) 31,300 cfs on 06/08/2017
(4) 28,600 cfs on 06/19/1974
(5) 27,300 cfs on 06/01/2018
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 16,100 cfs on 06/06/2021
(2) 23,600 cfs on 06/07/2020
(3) 17,800 cfs on 06/08/2019
(4) 27,300 cfs on 06/01/2018
(5) 31,300 cfs on 06/08/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

	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
14.04	Record stage and flow---38,600 cfs (6/11/1997).
Photos (1) Looking Upstream---Moderate Flow (2) Looking Downstream---Moderate Flow

Other Real-time and/or Archive Data Sources:

U.S. Geological Survey (USGS) Data and Site Info for Alpine

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
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Page last modified: 2-Nov-2020 7:28 PM

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