National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Denver/Boulder, CO

Colorado Basin River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (MST)

Datum: NGVD29

Metadata

NOTE: Stage may be affected by ice during winter months.

NOTE: Forecasts for the Snake River (CO) near Montezuma are issued routinely year-round.

Return to Area Map

Downstream Gauge

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
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 2.83 ft on 06/11/2016
(2) 3.12 ft on 06/11/2015
(3) 3.20 ft on 06/03/2014
(4) 2.76 ft on 06/08/2013
(5) 1.78 ft on 05/04/2012
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

Zoom Level:11

	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

About This Location

Latitude: 39.605400° N, Longitude: 105.943100° W, Horizontal Datum: NAD27

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	3.8 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	9320	9323.8	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 Montezuma

Additional Information

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

Resources

Hydrologic Resources

Additional Resources

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: 30-Oct-2020 4:08 PM

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