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:

Oct 20 2020 at 8:05 AM PDT

Next Issuance:

Oct 21 2020 at 9:00 AM PDT

Monitor Stage: 20.0 Feet

Flood Stage: 23.0 Feet

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
2019*	67,300	26.84	Feb 27, 2019
2018*	10,800	9.76	Mar 22, 2018
2017*	42,500	20.32	Jan 11, 2017
2016*	19,300	13.22	Jan 18, 2016
2015*	42,800	20.28	Dec 11, 2014
Historical High Stage/Flow Events (Period of Record - Oct 1939 to Present)
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 Tonight: Mostly clear. Lows in the upper 40s to lower 60s. Northwest winds 5 to 10 mph.

Wednesday: Sunny. Highs in the mid 70s to upper 80s. Northwest winds 5 to 10 mph and becoming southwest in the afternoon.

Wednesday Night: Mostly clear. Lows in the mid 40s to lower 60s. West winds 5 to 10 mph and becoming northwest 10 to 20 mph after midnight.

Thursday: Sunny. Highs in the lower 70s to mid 80s. North winds 10 to 20 mph. Gusts up to 35 mph in the morning.

Thursday Night: Mostly clear. Lows in the lower 40s to mid 50s. North winds 10 to 20 mph with gusts to around 35 mph.

Friday: Sunny. Highs in the 60s to 70s.

Friday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the 40s to mid 50s.

Saturday: Partly cloudy. Highs in the upper 50s to lower 70s.

Saturday Night through Tuesday: Mostly clear. Lows in the upper 30s to lower 50s. Highs in the 60s to 70s.

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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