CNRFC - Hydrology - Observed River/Reservoir Conditions

*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.

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HUMBOLDT RIVER - COMUS (CMSN2)

Latitude: 40.99º N	Longitude: 117.32º W	Elevation: 4360 Feet
Location: Humboldt County in Nevada		River Group: Humboldt

Monitor Stage: 8.5 Feet

Flood Stage: 9.5 Feet

Observed Data Credit
	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
2024*	2,310	10.19	May 5, 2024
2023*	3,240	11.11	Jun 3, 2023
2022*	164	3.25	Jun 20, 2022
2021*	279	3.96	Jun 10, 2021
2020*	364	4.61	Jun 6, 2020
Historical High Stage/Flow Events (Period of Record - April 1895** to Present) - Ranked by Flow
1984*	9,900	12.25	Apr 24, 1984
1952*	5,860	11.52	May 6, 1952
1983*	5,210	11.76	Jun 14, 1983
2017*	4,960	11.29	Mar 31, 2017
2005*	4,710	11.44	May 28, 2005
1969*	3,910	10.64	Apr 18, 1969
* Discharge affected to unknown degree by regulation or diversion
** Missing records from 1927 to 1945

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (NVZ030)

Tonight: Mostly clear. Lows 42 to 48. North winds 5 to 15 mph.

Wednesday: Sunny. Highs 68 to 78. North winds 5 to 15 mph.

Wednesday Night: Partly cloudy. Lows 46 to 52. North winds 5 to 15 mph.

Thursday: Sunny. Highs 73 to 83. North winds up to 10 mph.

Thursday Night: Mostly clear. Lows 49 to 55. North winds 5 to 15 mph.

Friday: Sunny. Highs 78 to 88.

Friday Night: Mostly cloudy in the evening then clearing. Lows 53 to 59.

Saturday: Sunny. Highs 83 to 93.

Saturday Night: Mostly clear. Lows 57 to 63.

Sunday: Sunny. Highs 85 to 95.

Sunday Night: Mostly clear. Lows 58 to 64.

Monday: Sunny. Highs 85 to 95.

Monday Night: Partly cloudy. Lows around 60.

Tuesday: Sunny. Highs 82 to 92.

Flood Impacts
12.5 Feet	Near record to record flooding in Humboldt County. Most secondary roads near the river, bridges over some primary roads, long stretches of rail and many ranch buildings flood. The river is 2-5 miles wide through Humboldt County. Winnemucca is flooded between the UPRR on the west and Second Street on the east. The U.S. Highway 95 bridge in Winnemucca may be affected. Many homes and businesses flood in Winnemucca. Large losses of livestock in the area. Similar to the record flood of April 1984.
12.0 Feet	Major flooding, including in Winnemucca. All secondary roads, stretches of rail and some ranch buildings near the river flood. The river is 2-4 miles wide through Humboldt county. Lower parts of Winnemucca flood between the UPPR and Golconda Street on the west and Second Street on the east, but not including Interstate 80. Approximately a dozen homes and several businesses are affected. Large losses of livestock in the area. Greater than the flood of 1952 but not as severe as the record flood of 1984.
11.5 Feet	Major Flood Stage. Major flooding throughout the reach, except moderate flooding in lower portions of Winnemucca. Many rural roads near the river are flooded. Main area impacted is between the Union Pacific Railroad and Golconda Street on the west and Second Street on the east, but not including Interstate 80. Homes and basements begin to experience flooding. This would be similar to the floods of June 1983 and April 2017.
11.0 Feet	Moderate to major lowland flooding throughout the reach. Many rural roads near the river are flooded. Minor to moderate flooding occurs in lower portions of Winnemucca. Main area impacted is between the Union Pacific Railroad and Golconda Street on the west and Second Street on the east, beneath Interstate 80. This would be similar to flooding in February 2017 and early June 2023.
10.5 Feet	Moderate Flood Stage. Moderate lowland flooding throughout the reach, with some rural roads flooded. Minor flooding in the lower parts of Winnemucca with storm drain backups along First and Second Streets. Main area impacted is between the Union Pacific Railroad and Second street beneath Interstate 80. Property damage in Winnemucca is minimal.
10.0 Feet	Minor to moderate lowland flooding throughout the reach. Some rural roads near the river begin to flood. Very minor flooding begins in Winnemucca with storm drain backups along First Street, and the lowest parts of town begin to flood.
9.5 Feet	Minor Flood Stage. Minor lowland flooding throughout the reach. No flooding in Winnemucca.
9.0 Feet	Very minor lowland flooding along the reach. No flooding in Winnemucca.
8.5 Feet	Monitoring Stage. Some very minor flooding occurs at scattered locations along the reach. No flooding occurs in Winnemucca.
8.0 Feet	No flooding in the reach.
7.5 Feet	No flooding in the reach.
7.0 Feet	No flooding in the reach.

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 Elko 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.

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