CNRFC - Hydrology - River Guidance - Graphical RVF

HUMBOLDT RIVER - ELKO (HREN2)

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

Issuance Time:

May 29 2020 at 8:40 AM PDT

Next Issuance:

May 30 2020 at 9:00 AM PDT

Monitor Stage: N/A

Flood Stage: 6.2 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
2019*	2,560	6.69	Jun 9, 2019
2018*	602	3.69	May 29, 2018
2017*	6,670	10.67	Feb 10, 2017
2016*	1,140	4.82	May 22, 2016
2015*	540	3.84	Jun 12, 2015
Historical High Stage/Flow Events (Period of Record - Oct 1944 to Present)
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

Official 7 Day National Weather Service Forecast (NVZ038)

Tonight: Mostly clear in the evening then becoming partly cloudy. Lows 53 to 59. South winds around 10 mph.

Saturday: Partly sunny. Windy. Patchy blowing dust in the afternoon. Highs 86 to 93 valleys and 78 to 88 mountains. Southeast winds 10 to 15 mph increasing to south 20 to 30 mph in the afternoon. Gusts up to 50 mph.

Saturday Night: Mostly clear. Areas of blowing dust in the evening. Lows 40 to 46. West winds 10 to 20 mph. Gusts up to 40 mph in the evening.

Sunday: Mostly sunny. Highs 77 to 84. Light winds becoming south around 10 mph in the afternoon.

Sunday Night: Mostly cloudy. Lows 46 to 52. West winds around 10 mph shifting to the southeast after midnight.

Monday: Mostly sunny in the morning then becoming partly sunny. Highs 81 to 88 valleys and 75 to 83 mountains.

Monday Night through Tuesday Night: Mostly cloudy. Lows 47 to 55. Highs 81 to 87 valleys and 74 to 82 mountains.

Wednesday and Wednesday Night: Mostly cloudy. Isolated showers and thunderstorms in the afternoon and evening. Highs 80 to 86 valleys and 73 to 81 mountains. Lows 47 to 53.

Thursday: Mostly sunny. Isolated showers and thunderstorms in the afternoon. Highs 79 to 86 valleys and 73 to 81 mountains.

Thursday Night: Mostly cloudy. Isolated showers and thunderstorms in the evening. Lows 47 to 53.

Friday: Mostly sunny. Isolated rain showers through the day. Isolated thunderstorms in the afternoon. Highs 76 to 83 valleys and 70 to 77 mountains.

Impacts - E19 Information
5.5 Feet	Bankfull conditions are possible. Isolated minor lowland flooding occurs upstream and downstream of Elko. No flooding expected in Elko.
6.2 Feet	Minor lowland flooding occurs upstream and downstream of Elko. Very minor flooding from backed-up storm drains begins in Elko, especially the parking lots on Water St between 7th and 9th Streets.
6.7 Feet	Minor flooding begins in Elko. The storm drain at 1st and Water Streets starts to back up.
7.0 Feet	Minor lowland flooding begins throughout the reach and minor flooding of rural roads occurs. Minor flooding occurs from backed-up storm drains in Elko along the following intersections: 1st and Water Streets, 3rd and Water Streets, the parking lots on Water Street between 7th and 9th Streets, 2nd and Douglas Streets, and 6th and Front Streets.
8.0 Feet	Moderate lowland flooding occurs throughout the reach, with minor 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 Street and Lyon Avenue to 12th Street. Basements will be impacted along this cooridor.
8.5 Feet	Moderate flooding occurs throughout the reach, including Elko. Some flooding and damage occurs to rural roads throughout the flood plain. 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 Avenue to 12th Street. Basements will be impacted along this cooridor.
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 Street and Lyon Avenue to 12th Street. Basements will be impacted along this cooridor. City pumping of flooded areas begins.
10.0 Feet	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, and to near Wilson Avenue south of the river between 1st and 9th Streets, as well as from 9th Street and Lyon Avenue to 12th Street. Basements in low-lying parts of town flood. Flooded areas are pumped by the city. Elko sewage treatment plant reaches capacity.
10.7 Feet	Near-record flooding. Significant damage to roads, railroads, and structures. Moderate impact occurs to transportation and communications. Livestock will be greatly impacted. Elko is flooded from near River Street north of the river to near Wilson Street south of the river. Flooding also occurs north of 12th Street including Opal Drive and southwest of A Street to near Bullion Road. River is above storm drain elevation. Elko sewage plant exceeds capacity.
11.0 Feet	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 Boulevard, 5th Street, and 12th Street. Homes located within the floodplain could be impacted.
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 Boulevard, 5th Street, and 12th Street. Homes located within the floodplain could be impacted.

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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Verification - Historical Graphical RVF
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