National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Reno, NV

California Nevada River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (PST)

Datum: NGVD29

Metadata

NOTE: Gauge reading may be affected by ice during freezing weather from November to April.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the West Walker River near Coleville are issued routinely year-round.

Return to Area Map

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	7.3
Moderate Flood Stage:	6.5
Flood Stage:	6
Action Stage:	5.5
Low Stage (in feet):	0

Historic Crests
(1) 10.25 ft on 01/02/1997
(2) 7.96 ft on 11/20/1950
(3) 7.75 ft on 12/11/1937
(4) 7.42 ft on 12/23/1955
(5) 7.10 ft on 05/16/1996
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.02 ft on 06/20/2017
(2) 6.70 ft on 06/05/2017
(3) 6.66 ft on 06/24/2011
(4) 6.58 ft on 06/07/2010
(5) 5.16 ft on 05/20/2009
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 0.99 ft on 09/11/1977
(2) 1.04 ft on 08/29/1977
(3) 1.06 ft on 01/08/1977
Show More Low Water Records

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:14

	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
10.5	Incredible flood disaster in excess of January 1997 event.
10.25	Flood of record. Highway 395 in West Walker River Canyon closed for months. Massive destruction to infrastructure and economy including transportation, power, water, homes, businesses, etc. Area isolated. At this stage in January 1997 a 6.5-mile stretch of Highway 395 completely scoured with debris from canyon deposited in the town of Walker.
9.5	Near record flooding. Area cut off as most transportation routes into area destroyed/flooded. Massive destruction of infrastructure and economy including Utilities, roads, business, homes, etc.
8.8	Flood disaster from Walker River Canyon to Antelope Valley/Topaz Lake. Widespread flood damage to roads, bridges, homes and structures along river. Severe damage to Highway 395 in W Walker River Canyon with the highway probably closed. Historically this flow has been exceeded only once in January 1997.
8.25	Flood disaster in the West Walker River Canyon and in the Antelope Valley. Widespread flood damage to roads, bridges, homes and structures along river. Severe damage to Highway 395 in Walker Canyon, with highway likely closed. Historically this flow has been reached or exceeded only once in January 1997.
8	Flooding near disaster levels in the West Walker Canyon and in Antelope Valley-Walker, Coleville and Topaz California. Numerous structures flooded and roads washed out. Many sections of Highway 395 destroyed in West Walker Canyon. Major damage to agricultural land due to erosion and destroyed facilities, diversion dams, headgates, canals, levees. Roughly similar to peak flow in December 1937.
7.5	Major flooding in the West Walker Canyon and in Antelope Valley-Walker, Coleville and Topaz California. Many buildings, roads flooded and washed out. Major damage to agricultural lands. Extensive sandbagging required to protect property. Transportation affected. Severe damage to Highway 395 in West Walker Canyon.
7.3	Major flooding in the West Walker River Canyon and in Antelope Valley-Walker, Coleville and Topaz California. Many buildings, roads flooded and washed out, with major damage to agricultural lands. Extensive sandbagging required to protect property. Transportation affected. Severe damage to Highway 395 in West Walker Canyon possible.
7	Significant flooding of lowlands, agricultural land, yards, basements and rural roads in the West Walker River Canyon and in Antelope Valley including Walker, Coleville and Topaz California. Flooding of structures limited although some sandbagging necessary Roughly similar to May 1996 flood, and slightly in excess of June 2017 peak.
6.5	Moderate flooding of lowlands, pastures and some rural roads from the West Walker River Canyon to Topaz Lake .including Walker Coleville and Topaz California. Similar to peak of June 2011, and slightly below the peak of June 2017.
6	Flood stage. Minor flooding of lowlands pasture & rural roads in West Walker River Canyon and Antelope Valley including Walker, Coleville and Topaz California. Roughly similar to late May 2005, and slightly below peaks of June 2010 and May 2006.
5.5	Monitor Stag, No flooding in reach from West Walker River Canyon through Antelope Valley CA including Walker, Coleville, Topaz CA.
Photos (1) Downstream view from gage site, 5/5/2005, about 840 cfs. (2) Upstream view; confluence of Little Walker River (left) with West Walker River. 5/5/2005, 840 cfs (3) Gage house; West Walker River below Little Walker River gage.

About This Location

Latitude: 38.379722° N, Longitude: 119.449167° W, Horizontal Datum: NAD27

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	6 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	6,591.39	6597.39	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 Coleville

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
Reno Weather Forecast Office
2350 Raggio Pkwy
Reno, NV 89512-3900
(775) 673-8100
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Page last modified: 1-Mar-2019 12:32 AM

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