CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

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

Issuance Time:

Jan 18 2025 at 8:01 AM PST

Next Issuance:

Jan 19 2025 at 9:00 AM PST

Action/Monitor: 20.0 Feet

Minor Flood: 23.0 Feet

Moderate Flood: 27.0 Feet

Major Flood: 29.0 Feet

Plot Type:

Please Note: 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.

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
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
2019*	67,300	26.84	Feb 27, 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 Tonight: Mostly clear late in the evening then becoming partly cloudy. Patchy fog late in the evening. Areas of fog after midnight. Lows in the mid 30s to lower 40s. Light winds.

Sunday: Partly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the 50s to lower 60s. Light winds and becoming southwest 5 to 10 mph in the afternoon.

Sunday Night: Mostly clear in the evening then becoming partly cloudy. Patchy fog. Lows in the 30s to mid 40s. Northwest winds 5 to 10 mph.

Martin Luther King Jr Day: Sunny. Patchy dense fog in the morning. Highs in the upper 50s to mid 60s. Northeast winds 10 to 20 mph with gusts to around 35 mph.

Monday Night: Mostly clear. Lows in the lower 30s to mid 40s. Northeast winds 10 to 20 mph. Gusts up to 35 mph in the evening.

Tuesday: Sunny. Highs in the 50s to mid 60s.

Tuesday Night through Friday: Mostly clear. Lows in the lower 30s to mid 40s. Highs in the 50s to upper 60s.

Friday Night: Mostly clear in the evening then becoming partly cloudy. A slight chance of rain. Lows in the 30s to mid 40s.

Saturday: Partly cloudy. A slight chance of rain. Highs in the mid 50s to lower 60s.

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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Verification - Historical Graphical RVF
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