CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

SOUTH FORK GUALALA RIVER - SEA RANCH (GSRC1)

Latitude: 38.71º N	Longitude: 123.43º W	Elevation: 40 Feet
Location: Sonoma County in California		Bulletin Group: Russian Napa		River Group: Russian Napa

Issuance Time:

May 09 2025 at 8:12 AM PDT

Next Issuance:

May 10 2025 at 9:00 AM PDT

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

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

Official 7 Day National Weather Service Forecast (CAZ505)

Today: Partly cloudy in the morning then becoming sunny. Highs in the 60s to mid 70s. West winds 5 to 10 mph.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. Northwest winds 5 to 10 mph.

Saturday: Partly cloudy in the morning then becoming sunny. Highs in the 60s to mid 70s. Northwest winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.

Saturday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the lower 50s. Northwest winds 10 to 20 mph.

Sunday: Partly cloudy in the morning then becoming sunny. Highs in the upper 50s. West winds 10 to 15 mph.

Sunday Night: Partly cloudy in the evening then becoming mostly cloudy. A chance of rain. Lows in the upper 40s.

Monday: Mostly cloudy. A chance of rain. Highs in the upper 50s.

Monday Night and Tuesday: Partly cloudy. Lows in the mid 40s. Highs near 60.

Tuesday Night and Wednesday: Mostly clear. Lows in the mid 40s. Highs in the upper 50s to mid 60s.

Wednesday Night and Thursday: Partly cloudy. Lows in the upper 40s. Highs in the 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.

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