CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

HUMBOLDT RIVER - ELKO (HREN2)

Latitude: 40.94º N	Longitude: 115.62º W	Elevation: 5142 Feet
Location: Elko County in Nevada		Bulletin Group: Humboldt		River Group: Humboldt

Issuance Time:

May 08 2025 at 8:00 AM PDT

Next Issuance:

May 09 2025 at 9:00 AM PDT

Action/Monitor: N/A

Minor Flood: 6.2 Feet

Moderate Flood: 8.0 Feet

Major Flood: 10.0 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

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

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024*	1,360	4.89	Apr 28, 2024
2023*	2,510	6.63	May 27, 2023
2022*	223	2.51	Jun 14, 2022
2021*	94	1.88	May 24, 2021
2020*	333	2.85	May 23, 2020
Historical High Stage/Flow Events (Period of Record - Oct 1944 to Present) - Ranked by Flow
1986*	7,200	7.64	Feb 19, 1986
1983*	7,100	12.18	Mar 04, 1983
1963*	7,070	12.30	Feb 13, 1962
2017*	6,670	10.67	Feb 10, 2017
* Discharge affected to unknown degree by regulation or diversion

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
11.5 Feet	Flood disaster - major damage occurs to roads, railroads, and agriculture including livestock drownings. Major impact occurs to transportation and communications. Approaches to all three bridges in Elko will likely flood: Errecart Blvd., 5th Street, and 12th Street. Homes located withing the floodplain are likely impacted.
11.0 Feet	Record Streamflow, major to record flooding. Major damage occurs to roads, railroads and agriculture, including livestock drownings. Major impact occurs to transportation and communications. Approaches to all three bridges in Elko are nearly flooded: Errecart Blvd., 5th Street, and 12th Street. Homes located within the floodplain could be impacted.
10.7 Feet	Near Record Streamflow. Major damage to roads, railroads and structures. Moderate impact occurs to transportation and communication. Livestock will be greatly impacted. Elko will flood from near River Street north of the river to near Wilson Ave. and Bullion Road south of the river. Flooding also occurs north of 12th Street including Opal Drive. River is above storm drain elevation.
10.0 Feet	Major Flood Stage - major flooding occurs throughout the reach. Major damage occurs to roads, railroads, and structures. Livestock are impacted. Elko is flooded to near River Street north of the river to near Wilson Ave south of the river between 1st and 9th Streets, as well as from 9th Street and Lyon Ave. to 12th Street. Basements in low-lying parts of town will flood. Flooded areas are pumped by the city.
9.0 Feet	Moderate to major flooding occurs throughout the reach. Significant damage occurs to roads, railroads, and structures. Livestock are impacted. Elko flooding occurs between Douglas and Water Streets north of the river and to Front Street south of the river between 1st and 9th streets, as well as from 9th and Lyon Ave. to 12th Steet. Basements will be impacted along this corridor. City pumping of flooded areas begins.
8.5 Feet	Moderate flooding occurs throughout the reach, including in Elko. Some flooding and damage occurs to rural roads throughout the floodplain. Elko flooding occurs between Douglas and Water Streets north of the river and to Front Street south of the river between 1st and 9th Streets, as well as from 9th Street and Lyon Ave to 12th Street. Basements will be impacted along this corridor.
8.0 Feet	Moderate Flood Stage - Moderate lowland flooding occurs throughout the reach, with minor to moderate flooding in Elko caused by backed up storm drains. Minor flooding of rural roads occurs. In Elko, flood waters continue to rise between Douglas and Water Streets on the north side of the river, and to Front Street south of the river between 1st and 9th Streets, as well as from 9th and Lyon ave to 12th Street. Basements may be impacted along this corridor.
7.0 Feet	Minor lowland flooding begins throughout the reach and minor flooding of rural roads occurs. In Elko, minor flooding occurs in the parking lots on Water Street between 7th and 9th Streets and from backed-up storm drains at the following intersections: 1st and Water Streets, 3rd and Water Streets, 2nd and Douglas Streets, and 6th and Front Streets.
6.7 Feet	Minor Flood Stage - Minor flooding begins in Elko. The storm drain at 1st and Water Streets starts to back up.
6.2 Feet	Minor lowland flooding occurs upstream and downstream of Elko. Very minor flooding from backed up storm drains begins in Elko, especially in the parking lots on Water Street between 7th and 9th Streets.
5.5 Feet	Action Stage - Near bankfull conditions. Isolated minor lowland flooding possible upstream and downstream of Elko. No flooding execpected in Elko.

Official 7 Day National Weather Service Forecast (NVZ038)

Today: Sunny. Highs 76 to 82. East winds up to 5 mph shifting to the south in the afternoon.

Tonight: Mostly clear. Lows in the lower 50s. Southeast winds up to 10 mph.

Saturday: Mostly sunny. Highs 79 to 85. South winds 5 to 10 mph increasing to southwest 15 to 20 mph in the afternoon.

Saturday Night: Mostly cloudy. Lows in the lower 50s. Southwest winds 5 to 15 mph.

Sunday: Windy. Mostly sunny. Patchy blowing dust in the afternoon. Highs 74 to 80. South winds 5 to 15 mph increasing to southwest 20 to 30 mph in the afternoon.

Sunday Night: Partly cloudy. Lows in the mid 40s.

Monday: Breezy. Mostly sunny. Highs 64 to 70.

Monday Night: Mostly cloudy. Chance of rain showers and snow showers after midnight. Lows in the mid 30s. Chance of precipitation 50 percent.

Tuesday: Cooler. Rain showers and snow showers likely in the morning, then rain showers likely in the afternoon. Light snow accumulations. Highs 48 to 54. Chance of precipitation 70 percent.

Tuesday Night: Mostly cloudy. Chance of rain showers and snow showers in the evening, then chance of rain showers after midnight. Lows in the mid 30s. Chance of precipitation 50 percent.

Wednesday: Partly sunny. Chance of rain showers and snow showers in the morning, then chance of rain showers in the afternoon. Highs 50 to 56. Chance of precipitation 50 percent.

Wednesday Night: Mostly cloudy in the evening then clearing. Lows in the mid 30s.

Thursday: Not as cool. Mostly sunny. Highs 58 to 64.

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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