Major Flood
7.3 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
6.8 ft
Minor Flood
6 ft
Action Stage
5.5 ft
What Floods at Each Level
10.5 ft
Incredible flood disaster with massive and uncertain impacts in excess of the January 1997 event.
10 ft
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. Near this flow in January 1997 a 6.5-mile stretch of Highway 395 completely scoured with debris from the canyon deposited in the town of Walker.
9.5 ft
Near record flooding. Area cut off as most transportation routes into area destroyed or flooded. Massive destruction of infrastructure and economy including utilities, roads, business, homes, etc.
8.5 ft
Flood disaster from Walker River Canyon through Antelope Valley. Widespread flood damage to roads, bridges, homes and structures along river. Severe damage to Highway 395 in W Walker River Canyon with the highway likely closed. Historically this flow has been exceeded only once in January 1997.
8 ft
Flooding near disaster levels in the West Walker Canyon and in Antelope Valley. Numerous structures flooded and roads washed out. Sections of Highway 395 likely destroyed in West Walker Canyon. Major damage to agricutural land due to erosion and destroyed diversion dams, headgates, canals and levees. Similar to the 2nd highest flood of record in November of 1950, and only exceeded in January 1997.
7.3 ft
Major flooding in the West Walker River Canyon and in Antelope Valley including Walker, Coleville and Topaz California. Many buildings flooded and roads washed out. Major damage to agricultural lands. Extensive sandbagging required to protect propery. Transportiation affected. Damage to Highway 395 in the West Walker Canyon likely. Similar to the 4th highest peak flow in the 85 year gage record.
6.8 ft
Moderate 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, but slightly below the June 2017 peak.
6.5 ft
Expanding minor flooding of lowlands, pastures and some rural roads between the West Walker River Canyon and Topaz Lake, including Walker Coleville and Topaz California. Out of bank flows may cause significant erosion of agricuturural lands. Similar to the peak of June 2023.
6 ft
Flood stage. Minor flooding of lowlands pasture & rural roads in Antelope Valley including Walker, Coleville and Topaz California. Roughly similar to June 2019 and October 2021 crests.
5.5 ft
Monitor Stage, No flooding in reach from West Walker River Canyon through Antelope Valley CA including Walker, Coleville, Topaz CA.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Jan 1, 1997 | 9.99 ft | 12,300 cfs |
| Nov 19, 1950 | 7.86 ft | 6,220 cfs |
| Dec 10, 1937 | 7.71 ft | 5,800 cfs |
About This Gauge
USGS Site
NWS LID
WWBC1
River
West Walker River
County
Mono, CA
Coordinates
38.3797°N, 119.4492°W
Get Flood Alerts for West Walker River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of West Walker River near Coleville (Upper Gage)?
The West Walker River near Coleville (Upper Gage) gauge is maintained by USGS (site 10296000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for West Walker River near Coleville (Upper Gage)?
The NWS-defined flood stage for West Walker River near Coleville (Upper Gage) is 6 feet. Action stage begins at 5.5 feet. Moderate flooding starts at 6.8 feet, and major flooding at 7.3 feet.
How do I get alerts when West Walker River rises?
Download StormCast free on Google Play, go to River Gauges, and add West Walker River near Coleville (Upper Gage) to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the West Walker River near Coleville (Upper Gage) gauge located?
The gauge is located in Mono County, California at coordinates 38.3797°N, 119.4492°W. USGS site number: 10296000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on West Walker River
On This River
Downstream: West Walker River near Coleville (Lower Gage)
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Stage may be affected by ice during winter months.
- Reported historic crests have been estimated using recent ratings due to previous channel, location and/or datum changes. USGS observed crests can be found at: waterdata.usgs.gov/nwis/rt Please also see Additional Information tab at the bottom of this page.