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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:

Jul 05, 2025 at 8:33 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.

Short-Range Peak Exceedance Plot Product Info. Plot Type:

CSV Ensemble Files (Data in kcfs): Forecast Group | HEAC1

Cursor readout:

Show:

		Official Forecast (Deterministic)
		Ensemble Mean
		Model Traces

	Hourly Probabilities
		0-5% chance
		5-25% chance
		25-40% chance
		40-60% chance

What information is considered in this forecast?

Verification / Historical Plots
<-- Previous Forecast	Forecast Date: Forecast Cycle:

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)

rest of Today: Sunny. Highs in the upper 60s to mid 80s. Southwest winds 10 to 20 mph.

Tonight: Mostly clear. Lows in the upper 40s to mid 50s. Southwest winds 10 to 20 mph and becoming south 5 to 10 mph after midnight.

Sunday: Partly cloudy in the morning then becoming sunny. Highs in the upper 60s to mid 80s. South winds 5 to 10 mph.

Sunday Night: Clear in the evening then becoming partly cloudy. Areas of fog after midnight. Lows in the upper 40s to mid 50s. Southwest winds 5 to 15 mph.

Monday: Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 60s to lower 80s. Southwest winds 5 to 15 mph.

Monday Night: Mostly clear in the evening then becoming mostly cloudy. Patchy fog. Lows in the upper 40s to mid 50s.

Tuesday: Mostly cloudy in the morning then becoming sunny. Patchy fog. Highs in the mid 60s to lower 80s.

Tuesday Night: Clear in the evening then becoming partly cloudy. Areas of fog. Lows in the upper 40s to mid 50s.

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

Wednesday Night through Friday: Mostly clear. Lows in the 50s to lower 60s. Highs in the upper 70s to lower 90s.

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