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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:

Dec 08, 2023 at 8:09 AM PST

Monitor Stage: 20.0 Feet

Flood Stage: 23.0 Feet

Please Note:

Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Threshold Exceedance Plot Product Information

CSV Ensemble File Download (Data in feet): HEAC1

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		Official Forecast (Deterministic)

		Prob. of Threshold Exceedance
		Model Traces

What information is considered in this forecast?

Verification / Historical Plots
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Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

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.

Official 7 Day National Weather Service Forecast (CAZ506)

Rest of Today: Sunny. Highs in the mid 50s to lower 60s. Northwest winds 5 to 15 mph.

Tonight: Mostly clear. Areas of frost after midnight. Lows in the upper 20s to lower 40s. Northwest winds 5 to 15 mph.

Saturday: Sunny in the morning then becoming partly cloudy. Areas of frost in the morning. Highs in the mid 50s to lower 60s. Northeast winds up to 5 mph and becoming southeast in the afternoon.

Saturday Night: Mostly cloudy. Areas of frost after midnight. Lows in the lower 30s to mid 40s. Northeast winds up to 5 mph.

Sunday: Mostly cloudy. Highs in the 50s to mid 60s. Northeast winds up to 5 mph and becoming northwest around 5 mph in the afternoon.

Sunday Night: Partly cloudy. Lows in the mid 30s to upper 40s.

Monday: Partly cloudy in the morning then becoming sunny. Highs in the upper 50s to mid 60s.

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

Wednesday through Thursday: Partly cloudy. Highs in the 50s to mid 60s. Lows in the 30s to mid 40s.

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