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

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PUTAH CREEK - GUENOC (PCGC1)
Latitude: 38.78º NLongitude: 122.52º WElevation: 914 Feet
Location: Lake County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Cache Putah
Issuance Time: Dec 27 2025 at 9:53 AM PSTNext Issuance: Dec 28 2025 at 9:00 AM PST
Action/Monitor: 19.0 FeetMinor 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   (CAZ115)
Tonight: Partly cloudy. Lows 31 to 41.

Sunday: Sunny. Highs 50 to 60.

Sunday Night: Clear. Lows 34 to 44.

Monday: Sunny. Highs 54 to 64.

Monday Night: Clear. Lows 35 to 45.

Tuesday: Sunny. Highs 55 to 65.

Tuesday Night: Mostly clear. Lows 35 to 45.

Wednesday: Mostly sunny. Highs 55 to 65.

Wednesday Night: Partly cloudy. Chance of rain. Lows 37 to 47.

New Years Day through Saturday: Mostly cloudy. Chance of rain. Highs 48 to 59. Lows 36 to 46.
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 Eureka 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.