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:

May 25 2019 at 8:57 AM PDT

Next Issuance:

May 26 2019 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
2017*	42,500	20.32	Jan 11, 2017
2016*	19,300	13.22	Jan 18, 2016
2015*	42,800	20.28	Dec 11, 2014
2014*	8,090	8.35	Feb 9, 2014
2013*	28,600	16.53	Dec 23, 2012
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
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 this afternoon: Partly cloudy. Highs in the lower 60s to mid 70s. Southwest winds 10 to 20 mph.

Tonight: Mostly cloudy. Breezy. Lows in the mid 40s to lower 50s. West winds 10 to 20 mph increasing to 20 to 30 mph after midnight.

Sunday: Mostly cloudy. Breezy. A slight chance of rain in the morning. A chance of rain in the afternoon. Highs in the 50s to upper 60s. West winds 20 to 30 mph decreasing to 10 to 20 mph in the afternoon.

Sunday Night: Partly cloudy. Patchy fog after midnight. Lows in the mid 40s to lower 50s. Northwest winds 10 to 15 mph.

Memorial Day: Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s to lower 70s. Southwest winds 5 to 10 mph and becoming west 10 to 20 mph in the afternoon.

Monday Night: Partly cloudy. Lows in the upper 40s to mid 50s.

Tuesday through Saturday: Mostly clear. Highs in the upper 60s to lower 80s. Lows in the 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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