National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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CARSON RIVER - CARSON CITY (STWN2)
Latitude: 39.11º NLongitude: 119.71º WElevation: 4620 Feet
Location: Carson City County in NevadaRiver Group: Eastern Sierra
Monitor Stage: 8.0 FeetFlood Stage: 10.0 Feet


Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2021*
506
3.51
May 7, 2021
2020*
1,410
4.19
Apr 30, 2020
2019*
3,880
7.02
Feb 15, 2019
2018*
4,900
7.82
Apr 9, 2018
2017*
10,500
11.98
Feb 11, 2017
 Historical High Stage/Flow Events (Period of Record - May 1939 to Present) - Ranked by Flow
1997*
30,500
18.43
Jan 3, 1997
1956*
30,000
15.00**
Dec 24, 1955
1963*
21,900
13.11**
Feb 1, 1963
1951* 15,500 11.40** Nov 22, 1950
1986* 13,200 13.16 Feb 18, 1986
 * Discharge affected by regulation or diversion
 ** Old Datum. The difference is +1.0 ft and must be applied to data to convert to new datum.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (NVZ003)
Tonight: Partly cloudy. Slight chance of snow after midnight. Lows 32 to 37. South winds 15 to 25 mph. Gusts up to 35 mph increasing to 50 mph after midnight.

Thursday: Chance of snow and rain. Snow accumulation of 1 to 4 inches with 1 to 5 inches above 5000 feet. Highs 42 to 47. Southwest winds 25 to 35 mph with gusts up to 55 mph.

Thursday Night: Heavy snow likely in the evening, then partly cloudy with a slight chance of snow after midnight. Snow accumulation of 1 to 4 inches. Lows 11 to 21. West winds 10 to 20 mph. Gusts up to 45 mph decreasing to 30 mph after midnight.

Friday: Partly cloudy in the morning then becoming sunny. Highs 35 to 40. South winds 10 to 15 mph.

Friday Night: Partly cloudy. Lows 12 to 22. South winds 10 to 15 mph.

Saturday: Mostly cloudy. Slight chance of snow in the afternoon. Highs 38 to 43.

Saturday Night: Snow likely. Lows 24 to 29.

Sunday: Snow likely. Highs 38 to 43.

Sunday Night and Monday: Mostly cloudy with a chance of snow. Lows 14 to 24. Highs 34 to 39.

Monday Night through Wednesday: Partly cloudy. Lows 12 to 22. Highs 29 to 39.
Impacts - E19 Information
8.0 FeetFlood threat and localized overbank flow begin in lowest areas.
8.5 FeetMinimal lowland flooding through reach.
9.0 FeetMinor lowland flooding through reach in lower flood prone areas.
9.5 FeetMinor flood impacts in lower portions of reach.
10.0 FeetFlood Stage - Minor to moderate flooding, several homes begin to have flood problems in Genoa, Carson Valley, Stewart, and Dayton. Minor to moderate damage to agriculture.
10.5 FeetModerate flooding through reach. Damage to roads, bridges, crops, irrigation systems, and buildings in lower areas. Transportation begins to be affected.
11.0 FeetMajor flooding. Many roads and highways flooded. Transportation becoming difficult, US Highway 395 closes. Massive bank erosion with the ability to wash away buildings, cars, and roads. River channel begins to move around laterally.
12.0 FeetExtensive flooding with major damage. Most roads in valley areas flood making transportation difficult. Massive erosion with large agricultural losses, cattle drownings.
13.5 FeetFlood disaster throughout reach. Transportation very difficult. Large number of structures affected, infrastructure damage (roads, bridges, power, and water).
15.0 FeetMajor flood disaster with widespread destruction throughout reach from Genoa to Weeks. Transportation extremely difficult.
16.0 FeetNear record flooding with massive destruction throughout reach. Most towns isolated, transporation nearly impossible.
17.0 FeetRecord flooding. All towns cut off, bridges and roads destroyed.
19.0 FeetIncredible flood with damage previously unknown from Carson Valley to Fort Churchill, including Empire and Dayton areas. USGS estimated 100 year flood.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Reno Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.