CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

WEST WALKER RIVER - HOYE BRIDGE (HOYN2)

Latitude: 38.73º N	Longitude: 119.43º W	Elevation: 4980 Feet
Location: Douglas County in Nevada		Bulletin Group: Eastern Sierra		River Group: Eastern Sierra

Issuance Time:

Dec 27 2025 at 9:38 AM PST

Next Issuance:

Dec 28 2025 at 9:00 AM PST

Action/Monitor: 7.0 Feet

Minor Flood: 8.0 Feet

Moderate Flood: 9.0 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.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
10.5 Feet	Major flooding below Topaz Lake to Mason, including the Smith Valley and Wellington area. Many buildings, roads flooded or washed out, with major damage to agricultural lands. Transportation affected with NV route 208 in Smith Valley/Wilson Canyon likely damaged or washed out in some areas.
10.0 Feet	Major flooding below Topaz Lake to Mason, including the Smith Valley and Wellington area. Many buildings, roads flooded or washed out, with major damage to agricultural lands. Transportation affected with NV Route 208 in Smith Valley/Wilson Canyon possibly damaged or washed out in some areas.
9.5 Feet	Moderate flooding of area along the West Walker River from Topaz Lake to Mason including the Smith and Wellington areas. Flooding of some roads, yards and basements near the river in the Smith-Wellington area.
9.0 Feet	Moderate flooding of lowlands, agricultural land and rural roads along the West Walker River from Topaz Lake to Mason including the Smith and Wellington areas. Some flooding of lowest yards and basements near river in the Smith-Wellington area.
8.5 Feet	Minor to moderate flooding of lowlands, agricultural land, and rural roads along the West Walker River from Topaz Lake to Mason including the Smith and Wellington areas. Very limited flooding of lowest yards and basements near river in the Smith-Wellington area.
8.0 Feet	Flood Stage. Minor flooding of lowlands, pasture & rural roads on the West Walker from Topaz Lake to Mason, including the Smith and Wellington areas.
7.5 Feet	Some inundation of the lowest portions of reach on the West Walker from Topaz Lake to Mason, including the Smith and Wellington areas.
7.0 Feet	Monitor Stage. No flooding. Approx. 1940 cfs.

Official 7 Day National Weather Service Forecast (NVZ003)

Tonight: Clear in the evening then becoming partly cloudy. Lows 17 to 27. Northwest winds around 10 mph in the evening becoming light.

Sunday: Mostly cloudy in the morning then clearing. Highs 38 to 43. Light winds becoming northeast around 10 mph in the afternoon.

Sunday Night: Clear. Lows 15 to 25. East winds around 10 mph in the evening becoming light.

Monday: Sunny. Highs 41 to 46. Light winds becoming east around 10 mph in the afternoon.

Monday Night: Clear. Lows 20 to 25. Light winds.

Tuesday: Sunny. Highs 43 to 53.

Tuesday Night: Clear. Lows 22 to 27.

Wednesday: Partly cloudy. Highs 48 to 58.

Wednesday Night through Saturday: Mostly cloudy with a chance of rain and snow. Lows 30 to 35. Highs 47 to 57.

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.

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