CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

LAGUNA DE SANTA ROSA - SEBASTOPOL (LSEC1)

Latitude: 38.43º N	Longitude: 122.83º W	Elevation: 50 Feet
Location: Sonoma County in California		Bulletin Group: Russian Napa		River Group: Russian Napa

Issuance Time:

Jun 30 2025 at 6:46 AM PDT

Next Issuance:

Jul 01 2025 at 9:00 AM PDT

Action/Monitor: 67.0 Feet

Minor Flood: 69.0 Feet

Moderate Flood: N/A

Major Flood: N/A

Please Note:

Stage forecasts at this location are uncertain due to backwater effects.

Plot Type:

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
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
69.0 Feet	Minor Flooding. Occidental Road begins flooding near the channel margin. NWS will issue an Urban/Small Stream Advisory, if not yet already issued.
67.0 Feet	Monitor Stage. NWS may issue a Flash Flood Watch, if not yet already issued.

Official 7 Day National Weather Service Forecast (CAZ506)

rest of Tonight: Partly cloudy late in the evening then becoming mostly cloudy. Patchy fog. Lows in the lower to mid 50s. Southwest winds 5 to 10 mph.

Tuesday: Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. A slight chance of drizzle in the morning. Highs in the lower 70s to mid 80s. Southwest winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.

Tuesday Night: Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 50s. Southwest winds 10 to 15 mph.

Wednesday: Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 70s to 80s. Southwest winds 5 to 15 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.

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

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

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

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.

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Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.