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:

Sep 24 2022 at 8:14 AM PDT

Next Issuance:

Sep 25 2022 at 9:00 AM PDT

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)

Today: Sunny. Highs in the upper 70s to mid 90s. Northeast winds up to 5 mph increasing to southwest 10 to 15 mph in the afternoon.

Tonight: Mostly clear. Lows in the lower 50s to mid 60s. West winds 10 to 20 mph.

Sunday: Sunny. Highs in the mid 70s to lower 90s. Southwest winds 10 to 20 mph.

Sunday Night: Mostly clear. Lows in the 50s to lower 60s. Southwest winds 10 to 20 mph.

Monday: Partly cloudy in the morning then becoming sunny. Highs in the mid 70s to lower 90s. Southwest winds 10 to 20 mph.

Monday Night: Mostly clear. Lows in the 50s.

Tuesday and Tuesday Night: Mostly clear. Highs in the 70s to 80s. Lows in the 50s.

Wednesday through Thursday: Partly cloudy. Highs in the 70s to 80s. Lows in the 50s.

Thursday Night and Friday: Mostly clear. Lows in the 50s. Highs in the 70s to 80s.

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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