National Weather Service Advanced Hydrologic Prediction Service

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Visit https://www.weather.gov/owp/operations for access to new EXPERIMENTAL products and services from the National Water Center: National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook and the National Water Center Visualization Services, a suite of geospatial services depicting River Forecast Center and National Water Model information.

View the Enhanced Operating Capability Products and Services StoryMap here

Weather Forecast Office Reno, NV

California Nevada River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (PST)

Datum: NAVD88

Metadata

NOTE: Stage may be affected by ice during winter months.

NOTE: Reported historic crests have been estimated using recent ratings due to previous channel, location and/or datum changes. USGS observed crests can be found at: waterdata.usgs.gov/nwis/rt Please also see Additional Information tab at the bottom of this page.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Humboldt River near Imlay are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	12
Moderate Flood Stage:	11.2
Flood Stage:	10.3
Action Stage:	9.5
Low Stage (in feet):	-9999

Historic Crests
(1) 14.63 ft on 05/27/1984
(2) 13.66 ft on 05/09/1952
(3) 13.31 ft on 06/04/2005
(4) 13.20 ft on 04/19/2006
(5) 12.95 ft on 06/17/1983
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 10.92 ft on 06/25/2019
(2) 11.06 ft on 06/21/2017
(3) 12.17 ft on 04/06/2017
(4) 11.43 ft on 03/07/2017
(5) 13.20 ft on 04/19/2006
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:14

	Gauge Location	Disclaimer
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.

Flood Impacts & Photos

If you notice any errors in the below information, please contact our Webmaster
11.7	Access to the Flying M Ranch is limited due to water over Old Idaho Stage Road. Flood waters up to a foot deep are possible on Tungsten Road, but the road may remain passable to high clearance, four-wheel drive vehicles.
10.3	Minor flooding of Tungsten Road south of the river between the river and the Pit Taylor Canal. Some minor low land flooding is possible very near the river from the Humboldt County line to Rye Patch. At a higher level access to Flying M Ranch via Old Idaho Stage Road is flooded.

About This Location

Latitude: 40.692400° N, Longitude: 118.204300° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	10.3 ft	Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum	Elevation (gauge height = 0)	Elevation (gauge height = flood stage)	Elevation information source
NAVD88	4133.2	4143.5	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	Not Available	Not Available	Older USGS topographic maps, NGVD29 benchmarks
MSL	Not Available	Not Available	Older USGS topographic maps, MSL benchmarks
Other	Not Available	Not Available

Current/Historical Observations:

U.S. Geological Survey (USGS) Data and Site Info for Imlay

Additional Information

Reported historic crest estimates have been normalized using USGS Rating 35.0 (as of 12/12/2019) due to previous channel, location and/or datum changes. For observed crests please go to:https://nwis.waterdata.usgs.gov/usa/nwis/peak/?site_no=10333000

Resources

Hydrologic Resources

Additional Resources

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

NWS Information

National Weather Service
Reno Weather Forecast Office
2350 Raggio Pkwy
Reno, NV 89512-3900
(775) 673-8100
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Page last modified: 2-Nov-2020 7:27 PM

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