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RUSSIAN RIVER - HEALDSBURG (HEAC1)
Latitude: 38.61º NLongitude: 122.84º WElevation: 77 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jun 22, 2025 at 11:01 AM PDT
Action/Monitor: 20.0 FeetMinor Flood: 23.0 FeetModerate Flood: 27.0 FeetMajor Flood: 29.0 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 Files (Data in kcfs):  Forecast Group  |  HEAC1

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What information is considered in this forecast?
Verification / Historical Plots
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ESRI™ Locator Map
Flood Impacts
30.0 FeetMajor to disastrous flooding along the reach of the gage occurs. Major flooding occurs in the agricultural sections of Alexander Valley.
29.0 FeetMajor flooding along the reach of the gage will occur. Homes, businesses and secondary roads in the lower sections of Healdsburg will begin to flood. The lower areas of Alexander Valley will begin to flood.
27.0 FeetModerate flooding along the reach of the gage will occur. Some secondary roads south of US 101 will have minor to moderate flooding.
25.0 FeetLow lying areas south of US 101 begin to have minor flooding.
23.0 FeetMinor flooding of farm land and banks in rural areas along the reach of the gage will occur.
Official 7 Day National Weather Service Forecast   (CAZ506)
rest of Tonight: Mostly clear. Lows in the 40s to upper 50s. West winds up to 5 mph.

Monday: Sunny. Highs in the lower 70s to mid 80s. Southwest winds 5 to 15 mph.

Monday Night: Partly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest winds 5 to 15 mph.

Tuesday: Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 60s to lower 80s. Southwest winds 5 to 15 mph.

Tuesday Night: Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest winds 5 to 15 mph.

Wednesday: Mostly cloudy in the morning then becoming sunny. Highs in the lower 70s to mid 80s.

Wednesday Night through Saturday: Mostly clear. Lows in the 40s to upper 50s. Highs in the 70s to 80s.

Saturday Night: Mostly clear except patchy fog. Lows in the 40s to upper 50s.

Sunday: Partly cloudy in the morning then becoming sunny. Highs in the 70s to 80s.