CNRFC - Hydrology - Observed River/Reservoir Conditions

RUSSIAN RIVER - HEALDSBURG (HEAC1)

Latitude: 38.61º N	Longitude: 122.84º W	Elevation: 77 Feet
Location: Sonoma County in California		Bulletin Group: Russian Napa		River Group: Russian Napa

Action/Monitor: 20.0 Feet

Minor Flood: 23.0 Feet

Moderate Flood: 27.0 Feet

Major Flood: 29.0 Feet

Plot Type:

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*	26,300	16.41	Feb 5, 2024
2023*	26,400	16.45	Jan 9, 2023
2022*	17,900	13.55	Oct 25, 2021
2021*	1,740	3.95	Feb 2, 2021
2020*	7,050	7.63	Dec 7, 2019
Historical High Stage/Flow Events (Period of Record - Oct 1939 to Present) - Ranked by Flow
1995*	73,000	26.23	Jan 9, 1995
1965*	71,300	27.00	Dec 23, 1964
1986*	71,100	25.81	Feb 17, 1986
2019*	67,300	26.84	Feb 27, 2019
1997*	65,700	24.61	Jan 01, 1997
* Discharge affected by regulation or diversion

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
30.0 Feet	Major to disastrous flooding along the reach of the gage occurs. Major flooding occurs in the agricultural sections of Alexander Valley.
29.0 Feet	Major flooding along the reach of the gage will occur. Homes, businesses and secondary roads in the lower sections of Healdsburg will begin to flood. The lower areas of Alexander Valley will begin to flood.
27.0 Feet	Moderate flooding along the reach of the gage will occur. Some secondary roads south of US 101 will have minor to moderate flooding.
25.0 Feet	Low lying areas south of US 101 begin to have minor flooding.
23.0 Feet	Minor flooding of farm land and banks in rural areas along the reach of the gage will occur.

Official 7 Day National Weather Service Forecast (CAZ506)

rest of Today: Sunny. Highs in the mid 60s to lower 80s. Southwest winds 10 to 20 mph.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the 50s. Southwest winds 10 to 20 mph.

Wednesday: Mostly cloudy in the morning then becoming sunny. Areas of fog in the morning. A slight chance of drizzle in the morning. Highs in the 60s to 70s. Southwest winds 10 to 20 mph.

Wednesday Night: Mostly clear in the evening then becoming mostly cloudy. Patchy fog in the evening, then areas of fog after midnight. A slight chance of drizzle after midnight. Lows in the 40s to upper 50s. Southwest winds 10 to 20 mph.

Thursday: Mostly cloudy in the morning then becoming sunny. Widespread fog in the morning. Highs in the upper 60s to lower 80s. Southwest winds 5 to 15 mph.

Thursday Night: Mostly clear in the evening then becoming partly cloudy. Areas of fog. Lows in the upper 40s to mid 50s.

Friday: Mostly cloudy in the morning then becoming sunny. Widespread fog. Highs in the upper 60s to mid 80s.

Friday Night: Clear in the evening then becoming partly cloudy. Areas of fog. Lows in the upper 40s to mid 50s.

Saturday: Mostly cloudy in the morning then becoming sunny. Areas of fog. Highs in the lower 70s to mid 80s.

Saturday Night: Mostly clear except patchy fog. Lows in the upper 40s to mid 50s.

Sunday: Partly cloudy in the morning then becoming sunny. Highs in the 70s to 80s.

Sunday Night and Monday: Mostly clear except patchy fog. Lows in the lower to mid 50s. Highs in the upper 60s to mid 80s.

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 San Francisco Bay Area-Monterey 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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