CNRFC - Hydrology - River Guidance - Graphical RVF

RUSSIAN RIVER - HEALDSBURG (HEAC1)

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

Issuance Time:

Jan 27 2023 at 7:42 AM PST

Next Issuance:

Jan 27 2023 at 3:00 PM PST

Monitor Stage: 20.0 Feet

Flood Stage: 23.0 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View USGS Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2021*	1,740	3.95	Feb 2, 2021
2020*	7,050	7.63	Dec 7, 2019
2019*	67,300	26.84	Feb 27, 2019
2018*	10,800	9.76	Mar 22, 2018
2017*	42,500	20.32	Jan 11, 2017
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

Official 7 Day National Weather Service Forecast (CAZ506)

Rest of Today: Sunny. Highs in the 50s to mid 60s. Southwest winds around 5 mph increasing to 10 to 20 mph in the afternoon.

Tonight: Mostly clear in the evening then becoming partly cloudy. Breezy. Lows in the 30s to mid 40s. Northwest winds 20 to 30 mph decreasing to 10 to 20 mph after midnight.

Saturday: Mostly cloudy in the morning then becoming partly cloudy. Highs in the 50s to lower 60s. Southwest winds 10 to 20 mph.

Saturday Night: Mostly clear in the evening then becoming mostly cloudy. Lows in the 30s to mid 40s. Northwest winds 10 to 20 mph.

Sunday: Mostly cloudy. Highs in the upper 40s to mid 50s. North winds 10 to 20 mph.

Sunday Night: Mostly clear. Breezy. Lows in the 20s to upper 30s.

Monday through Tuesday: Mostly clear. Highs in the 40s to upper 50s. Lows in the 20s to upper 30s.

Tuesday Night: Mostly clear in the evening then becoming partly cloudy. Areas of frost. Lows in the 20s to upper 30s.

Wednesday: Partly cloudy. Highs in the 50s.

Wednesday Night: Mostly cloudy. Lows in the 30s to lower 40s.

Thursday: Mostly cloudy. A chance of rain. Highs in the lower to mid 50s.

Impacts - E19 Information
23.0 Feet	Minor flooding of banks in rural areas and farm land along the reach of the gage.
25.0 Feet	Minor flooding continues. Low-lying areas south of US 101 begin to flood.
27.0 Feet	Moderate flooding begins along the reach. Some secondary roads south of US 101 begin to flood.
29.0 Feet	Major flooding begins along the reach. Homes, businesses, and secondary roads in the lowest sections of Healdsburg begin to flood. Lower portions of the Alexander Valley begin to flood.
30.0 Feet	Major flooding continues. Extensive flooding begins in the agricultural sections of the Alexander Valley.

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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