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This probabilistic forecast is issued by the Colorado Basin River Forecast Center.

	Hydrograph			River at a Glance			Download			Probability Information Weekly Chance of Exceeding Levels Chance of Exceeding Levels During Entire Period 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 (CO) near Montezuma are issued routinely year-round.

Return to Area Map

Zoom Level:11

Flood Categories (in feet)

Major Flood Stage:	5
Moderate Flood Stage:	4.5
Flood Stage:	3.8
Action Stage:	3.3
Low Stage (in feet):	-9999

Historic Crests
(1) 3.88 ft on 06/06/1972
(2) 3.84 ft on 06/21/1983
(3) 3.78 ft on 06/15/1978
(4) 3.76 ft on 06/13/1973
(5) 3.71 ft on 06/21/1971
(6) 3.71 ft on 06/21/1995
(7) 3.67 ft on 06/11/1980
(8) 3.67 ft on 06/08/1985
(9) 3.60 ft on 06/17/1965
(10) 3.48 ft on 06/18/1974
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 2.67 ft on 06/06/2021
(2) 2.71 ft on 06/06/2020
(3) 3.01 ft on 06/13/2019
(4) 2.55 ft on 05/27/2018
(5) 3.02 ft on 06/10/2017
(6) 2.83 ft on 06/11/2016
(7) 3.12 ft on 06/11/2015
(8) 3.20 ft on 06/03/2014
(9) 2.76 ft on 06/08/2013
(10) 1.78 ft on 05/04/2012
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
5	Extensive flooding occurs from Montezuma through Keystone with major impacts to structures and roads along the river.
4.5	Montezuma road floods. Significant flooding of low lying properties is expected along the Snake River from Montezuma through Keystone.
3.8	Flooding begins to affect Keystone. These would be the highest flows on the Snake River since records began in the early 1940s.
3.5	The Snake River is out of its banks and into nearby fields.
Photos (1) Looking Upstream (2) Looking Downstream

Other Real-time and/or Archive Data Sources:

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

Additional Information

Observations provided by the U.S. Geological Survey in cooperation with Denver Water.

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
Denver/Boulder Weather Forecast Office
325 Broadway
Boulder, CO 80305-3328
(303) 494-4221
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Page last modified: 2-Nov-2020 7:28 PM

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