CNRFC - Hydrology - River Guidance - Graphical RVF

RUSSIAN RIVER - HOPLAND (HOPC1)

Latitude: 39.03º N	Longitude: 123.13º W	Elevation: 498 Feet
Location: Mendocino County in California

Monitor Stage: 18.0 Feet

Flood Stage: 21.0 Feet

Historical Info	Peak Discharge	Stage	Date
Period of Record	45,000 cfs	27.00 feet	Dec 22, 1955
Dec 1996 - Jan 1997	20,000 cfs	18.84 feet	Dec 31
1995	27,600 cfs	22.40 feet	Jan 09
Feb 1986	32,900 cfs	22.96 feet	Feb 17

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

Regional Location Map		Gage Station Location Map

Official 7 Day National Weather Service Forecast (CAZ076)

Rest of Tonight: Mostly clear. Patchy valley fog after midnight. Lows 30 to 40.

Tuesday: Sunny. Patchy valley fog in the morning. Highs 61 to 71.

Tuesday Night: Mostly clear. Patchy fog. Lows 33 to 43.

Wednesday: Sunny. Patchy fog. Highs 60 to 70.

Wednesday Night: Mostly clear. Lows 32 to 42.

Thanksgiving Day: Mostly cloudy. Slight chance of rain. Highs 54 to 64.

Thursday Night and Friday: Mostly cloudy. Chance of rain. Lows 33 to 43. Highs 50 to 60.

Friday Night: Partly cloudy. Areas of fog. Lows 28 to 38.

Saturday: Partly cloudy. Patchy fog. Highs 54 to 64.

Saturday Night: Partly cloudy. Lows 28 to 38.

Sunday through Monday: Mostly clear. Highs 53 to 63. Lows 29 to 39.

Impacts - E19 Information
15.0 Feet	Flooding of Highway 175 is expected at the approaches to the Russian River bridge. Expect minor flooding of crop land on the right bank of the river.
17.0 Feet	Significant flooding of Highway 175 at the approaches to the Russian River bridge. Minor flooding of Highway 222 near Ukiah, and in crop land along the left and right banks of the Russian River near Hopland.
18.0 Feet	Flooding of Highway 222 near Ukiah. Secondary roads in low-lying areas will be flooded in the Hopland, Ukiah, and Talmage areas.
20.0 Feet	Flooding of low-lying structures east of the railroad tracks near Hopland.
21.0 Feet	Flooding of low-lying structures just west of the railroad tracks near Hopland.
23.0 Feet	Flooding of farm land, buildings and low-lying homes in the Hopland area. Flooding will begin in the Ukiah and Talmage areas.
24.0 Feet	Flooding of low-lying structures and farm land in the Hopland, Ukiah, and Talmage areas. Many secondary roads may also be flooded. Severe bank erosion is possible.
25.0 Feet	Severe bank erosion is likely with widespread flooding of farm land, buildings and low-lying homes in the Hopland, Ukiah, and Talmage areas. Many secondary roads will be flooded. This level of flooding caused 6100 acres to floodin in February 1940.
26.0 Feet	Widespread major flooding will occur. Primary roads and some bridges will flood.
27.0 Feet	Widespread major flooding. At the forecast level, over 500 homes and farm buildings were damaged on December 22,1955. 6300 acres of land were inundated by flood waters. All persons in the area are urged to move to high ground and take appropriate action to protect life and property.
28.0 Feet	Disastrous flooding will occur. Many homes and businesses could be damaged. Many primary and secondary roads and some bridges could be washed out.
30.0 Feet	Disastrous flooding. Many homes and businesses damaged. Numerous primary and secondary roads and some bridges could be washed out. This is equal to the highest known stage, which occurred in December 1937. 6500 acres were inundated by flood waters.

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 Eureka 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.