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

*** IMPORTANT ***  Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.
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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: Jun 14 2025 at 7:21 AM PDTNext Issuance: Jun 15 2025 at 9:00 AM PDT
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 50 to 60.

Sunday: Mostly cloudy in the morning then clearing. Highs 78 to 90.

Sunday Night: Partly cloudy. Lows 48 to 58.

Monday: Sunny. Highs 76 to 89.

Monday Night and Tuesday: Clear. Lows 51 to 61. Highs 79 to 94.

Tuesday Night through Thursday Night: Clear. Lows 52 to 62. Highs 83 to 98.

Friday through Saturday: Clear. Highs 71 to 85. Lows 46 to 56.
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.