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

 |  End of River Group

RUSSIAN RIVER - HIGHWAY 1 BRIDGE NEAR JENNER (RROC1)
Latitude: 38.43º NLongitude: 123.10º WElevation: 10 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jul 19 2025 at 7:48 AM PDTNext Issuance: Jul 20 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View US Geological Survey (USGS) Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ505)
Today: Mostly cloudy in the morning then becoming partly cloudy. A slight chance of drizzle in the morning. Highs in the 60s. West winds 5 to 10 mph.

Tonight: Mostly cloudy. Lows in the lower 50s. Southwest winds 5 to 10 mph.

Sunday: Partly cloudy in the morning then becoming sunny. Highs in the 60s to lower 70s. West winds 5 to 15 mph.

Sunday Night: Partly cloudy. Lows in the lower 50s. West winds 10 to 15 mph.

Monday: Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s. West winds 10 to 20 mph.

Monday Night: Mostly cloudy. A slight chance of drizzle. Lows in the lower 50s.

Tuesday: Mostly cloudy. A slight chance of drizzle. Highs in the lower to mid 60s.

Tuesday Night: Mostly cloudy. Lows in the lower 50s.

Wednesday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog. A slight chance of drizzle. Highs in the lower to mid 60s.

Wednesday Night through Friday: Mostly cloudy. Lows in the lower 50s. Highs in the lower to mid 60s.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS San Francisco Bay Area-Monterey Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.