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Carson River near Carson City, NV (STWN2)


Data Type




Inundation Levels
NAVD88 Stage

4,649.225.0
4,648.224.0
4,647.223.0
4,646.222.0
4,645.221.0
4,644.220.0
4,643.219.0
4,642.218.0
Record Crest: 17.22 ft
4,641.217.0
4,640.216.0
4,639.215.0
4,638.214.0
4,637.213.0
4,636.712.5
4,636.212.0
4,635.711.5
4,635.211.0

Major Flooding Begins

4,634.710.5

Moderate Flooding Begins

4,634.210.0

Minor Flooding Begins

4,633.79.5
4,633.29.0
4,632.78.5
4,632.28.0

Near Flooding Begins

* = Extended rating
Weather Forecast Office Reno, NV California Nevada River Forecast Center
Hydrograph River at a Glance Download Inundation
Mapping
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Click on mapped inundation to see water depth values for that location, or hold shift and drag to zoom to area.

Current Stage:
3.3 ft at 11/20/2017 15:15:00 UTC
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Inundation Legend
Depth in feet
USGS Gauge Location Gauge Location
What is UTC time? Map Help

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.

Gauge Information Collapse

Map Overlays

Flood Categories (in feet)
Major Flood Stage: 11
Moderate Flood Stage: 10.5
Flood Stage: 10
Action Stage: 8
Low Stage (in feet): 0

Historic Crests
(1) 17.22 ft on 01/03/1997
(2) 17.10 ft on 12/24/1955
(3) 14.91 ft on 02/01/1963
(4) 12.83 ft on 11/22/1950
(5) 11.98 ft on 02/11/2017
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.98 ft on 02/11/2017
(2) 11.04 ft on 01/10/2017
(3) 11.45 ft on 12/31/2005
(4) 7.96 ft on 05/21/2005
(5) 17.22 ft on 01/03/1997
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

Flood Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
18 Incredible flood with damage previously unknown from the Carson Valley to Fort Churchill, including the Carson City and Dayton areas. About 34000 cfs, with about a one in 100 chance of occurring any year.
17 Record flooding. All towns along the Carson River above Lahontan Dam are cut off, with bridges and roads destroyed, and heavy damage to homes, businesses, infrastructure. About 30000 cfs with about a one in 85 chance of occurring any year.
16 Near record flooding with massive destruction of homes and infrastructure from Genoa to Fort Churchill, including Carson City and Dayton. Most towns isolated...transportation nearly impossible. Carson Valley has become a lake 3 miles wide by 12 miles long, the river is over a half mile wide in places. Thousands of acres of farmland flooded. About 26000 cfs, about a one in 65 chance of occurring any year.
15 Major flood disaster with widespread destruction throughout reach from Genoa to Fort Churchill, including Carson City and Dayton, Nevada. Transportation extremely difficult, with severe damage to infrastructure, agricultural areas. About 22200 cfs with about a one in 50 chance of occurring any year.
14 Flood disaster from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. Transportation extremely difficult. Very large number of structures affected with severe damage to infrastructure (roads, bridges, power, water, communications). Most cultivated fields underwater with large livestock losses. About 19000 cfs, with about a one in 35 chance of occurring any year.
13.5 Flood disaster from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. Transportation extremely difficult. Large number of structures affected with severe damage to infrastructure (roads, bridges, power, water, communications). Most cultivated fields underwater with large livestock losses. About 17400 cfs, with about a one in 30 chance of occurring any year.
13 Near flood disaster from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. Transportation extremely difficult. Large number of structures affected with severe damage to infrastructure (roads, bridges, power, water, communications). Most cultivated fields underwater with large livestock losses. About 16000 cfs, with about a one in 25 chance of occurring any year.
12.5 Extensive flooding with major damage to roads, bridges and structures from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. Almost all roads in valley areas flooded making transportation very difficult. Massive erosion with large agricultural losses, possible livestock drownings if they have not been moved to high ground. About 14600 cfs with about a one in 22 chance of occurring any year.
12 Extensive flooding with major damage to roads, bridges and structures from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. Almost all roads in valley areas flooded making transportation very difficult. Massive erosion with large agricultural losses, possible livestock drownings if they have not been moved to high ground. About 13300 cfs with about a one in 20 chance of occurring any year.
11.5 Major flooding with significant damage to roads, bridges and structures from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. Most roads in valley areas flooded making transportation very difficult. Massive erosion with large agricultural losses, possible livestock drownings if they have not been moved to high ground. About 12100 cfs with about a one in 18 chance of occurring any year.
11 Major flooding. Many roads, highways, homes and structures flooded from Genoa to Fort Churchill, Nevada, including Carson City, Stewart, Empire and Dayton. Tranportation becoming difficult, and US Hwy 395 is closed. Massive bank erosion possible with capability of washing away buildings, roads, heavy machinery. River channel begins to move around laterally. About 10900 cfs, with about a one in 15 chance of occurring any year.
10.5 Moderate flooding from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. Damage to roads, bridges, crops, irrigation systems and buildings in lower areas. Several homes and businesses flood in lower parts of Genoa, Carson Valley, Stewart and Dayton. Transportation begins to be affected, with water flowing over US Hwy 395 in places. About 9800 cfs, with about a one in 12 chance of occurring any year.
10 Flood stage. Minor flooding of lower portions of flood plain from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. River begins to go out of banks at this stage. Several homes begin to have flood problems in Genoa, Carson Valley, Stewart and Dayton. Minor to moderate damage to agriculture. About 8800 cfs with about a one in 10 chance of occurring any year.
9.5 Minor lowland flooding in flood prone areas along river from Genoa to Fort Churchill, Nevada, including Carson City and Dayton. About 7800 cfs with about a one in 8 chance of occurring any year.
9 Minor lowland flooding in lower reaches from Genoa to Fort Churchill, including Carson City and Dayton, Nevada. Sandbagging necessary in some of the lowest areas, though most flooding limited to pasture areas along river. About 6900 cfs with about a one in 7 chance of occurring any year.
8.5 Very minor lowland flooding from Genoa to Fort Churchill, including Carson City and Dayton, Nevada. Sandbagging necessary in Willow Bend area near Genoa or flooding of homes may occur. About 6000 cfs with about a one in 6 chance of occurring any year.
8 Monitoring stage. Flood threat and localized overbank flows begin in lowest areas from Genoa to Fort Churchill, including Carson City and Dayton along the Carson River. Especially flood prone areas include: lower Carson Valley, the Willow Bend area of Genoa; the Empire, Stewart, and Mexican Dam areas, Pinion Hills and Brunswick Canyon. Preparations for flooding should begin in these areas if river forecast to exceed flood stage. About 5200 cfs with about a one in 5 chance of occurring any year.
Photos
(1) Downstream View from gage at 2.52 feet - taken 10/28/2008
(2) Upstream View from Gage at 2.52 feet - taken 10/28/2008
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Page last modified: 21-Dec-2016 10:42 PM
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Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.