National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service



RUSSIAN RIVER - GUERNEVILLE (GUEC1)
Latitude: 38.50º NLongitude: 123.00º WElevation: 65 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: May 08, 2025 at 8:51 AM PDT
Action/Monitor: 29.0 FeetMinor Flood: 32.0 FeetModerate Flood: 35.0 FeetMajor Flood: 40.0 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.   CSV Ensemble Files (Data in kcfs): Forecast Group | GUEC1
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Location Photographs

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Flood Impacts
49.5 FeetFlood of record. 2/18/1986 (102,000cfs).
48.5 FeetNear record flooding. In Guerneville the Veterans building and the Sheriffs substation begin to flood.
47.0 FeetIn Guerneville businesses on the north side of Main Street flood. Travel most areas impossible.
46.0 FeetDisastrous flooding. In Guerneville much of downtown floods. The Guerneville post office begins to flood. In Rio Nido, River Road floods.
45.0 FeetDisastrous flooding is forecast to occur along the lower Russian River. Much of downtown Guerneville will become inundated. Many roads will flood making travel nearly impossible throughout the reach.
44.0 FeetIn Guerneville HWY 116 west of town closed. Safeway floods. In Monte Rio and Guerneville Park the main business sections flood. Travel in most areas nearly impossible.
41.5 FeetIn Guerneville, River Road closed. In Monte Rio the main intersections flood. Monte Rio Elementary School begins to flood.
40.0 FeetMajor flooding is expected along the Russian River. In Guerneville travel on River Road becomes very difficult. In Northwood upper Redwood Drive floods. In Cazadero Austin Creek Road floods.
39.0 FeetWest of Duncan Mills HWY 116 is closed. In Hacienda River Road floods. In Rio Nido Canyon 7 Road at the miniture golf course floods. In Guerneville the Triple R Resort begins to flood.
38.0 FeetIn Duncan Mills Freezeout Road at Moscow Road floods. In Guerneville Park Cazadero Road at HWY 116 floods.
37.0 FeetIn Forestville Mirabel Road at River Road floods. In Guerneville River Road east of Guerneville floods. Mill Street and 5th Street flood. In Monte Rio River Blvd east of Monte Rio floods.
36.0 FeetIn Forestville Mirabel Park Resort and Mirabel trailer park flood. In Guerneville Fern Road at HWY 116 floods.
35.0 FeetModerate flooding is forecast along the lower Russian River. Numerous businesses and residences in the lowest sections of towns within the reach are expected to flood. In Guerneville Brookside Resort begins to flood. More extensive flooding occurs at Parkers Resort. In Northwood lower Redwood Drive floods.
34.0 FeetIn Guerneville flooding begins at Johnsons Resort, Parkers Resort, Creekside Resort and Riverside Park. In Northwood lower Redwood Drive begins to flood.
33.0 FeetIn Guerneville the intersection of HWY 116 and Drake Rd is closed. In Monte Rio Willow and Alder Streets flood. In Forestville Mirabel trailer park begins to flood.
32.5 FeetIn Guerneville the intersecton of HWY 116 and Neeley Rd is closed. Mays Canyon Rd by the old rodeo grounds is closed.
32.0 FeetFlood stage. Minor flooding. Lower Mill Street in Guerneville and Old Bohemian Highway in Monte Rio are expected to flood.
29.0 FeetMonitor stage.
Official 7 Day National Weather Service Forecast   (CAZ506)
rest of Tonight: Partly cloudy. Lows in the 40s to upper 50s. West winds up to 5 mph.

Friday: Sunny. Highs in the 70s to 80s. Southwest winds 5 to 10 mph.

Friday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the 40s to upper 50s. West winds 5 to 10 mph.

Saturday: Sunny. Highs in the 70s to 80s. West winds up to 5 mph increasing to 10 to 15 mph in the afternoon.

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

Sunday: Sunny. Highs in the upper 50s to lower 70s.

Sunday Night: Mostly clear in the evening then becoming mostly cloudy. A chance of rain. Lows in the mid 40s to lower 50s.

Monday: Mostly cloudy. A chance of rain. Highs in the 50s to mid 60s.

Monday Night and Tuesday: Partly cloudy. Lows in the 40s to lower 50s. Highs in the 60s to lower 70s.

Tuesday Night through Wednesday Night: Mostly clear. Lows in the 40s to lower 50s. Highs in the lower 60s to mid 70s.

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