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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:

Jun 30, 2025 at 9:09 AM PDT

Action/Monitor: 20.0 Feet

Minor Flood: 23.0 Feet

Moderate Flood: 27.0 Feet

Major 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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		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

Flood Impacts
30.0 Feet	Major to disastrous flooding along the reach of the gage occurs. Major flooding occurs in the agricultural sections of Alexander Valley.
29.0 Feet	Major 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 Feet	Moderate flooding along the reach of the gage will occur. Some secondary roads south of US 101 will have minor to moderate flooding.
25.0 Feet	Low lying areas south of US 101 begin to have minor flooding.
23.0 Feet	Minor 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)

Today: Partly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the lower 70s to mid 80s. Southwest winds 10 to 20 mph.

Tonight: Mostly clear in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the 50s. Southwest winds 10 to 20 mph.

Wednesday: Partly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the 70s to 80s. Southwest winds 10 to 20 mph.

Wednesday Night: Mostly clear. Lows in the 50s. West winds 10 to 20 mph.

Thursday: Partly cloudy in the morning then becoming sunny. Highs in the 70s to 80s. West winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.

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

Independence Day through Sunday: Mostly clear. Highs in the lower 70s to mid 80s. Lows in the upper 40s to mid 50s.

Sunday Night: Clear in the evening then becoming partly cloudy. Patchy fog. Lows in the upper 40s to mid 50s.

Monday: Partly cloudy in the morning then becoming sunny. Highs in the upper 60s to mid 80s.

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