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:

Jul 11 2025 at 7:47 AM PDT

Next Issuance:

Jul 12 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: Mostly clear late in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 50s. Southwest winds 10 to 20 mph.

Saturday: Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the lower 70s to mid 80s. Southwest winds 10 to 15 mph.

Saturday Night: Mostly clear in the evening then becoming partly cloudy. Areas of fog after midnight. Lows in the lower to mid 50s. Southwest winds 5 to 15 mph.

Sunday: Mostly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the 70s to 80s. Southwest winds 5 to 15 mph.

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

Monday: Mostly cloudy in the morning then becoming sunny. Highs in the mid 70s to upper 80s.

Monday Night: Clear in the evening then becoming partly cloudy. Patchy fog. Lows in the 50s.

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

Tuesday Night: Mostly clear in the evening then becoming mostly cloudy. Patchy fog. Lows in the lower to mid 50s.

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

Wednesday Night: Mostly clear in the evening then becoming partly cloudy. Patchy fog. Lows in the 50s.

Thursday: Mostly cloudy in the morning then becoming sunny. Areas of fog. Highs in the upper 60s to lower 80s.

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

Friday: Mostly cloudy in the morning then becoming sunny. Areas of fog. Highs in the upper 60s to lower 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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