CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

RUSSIAN RIVER - UKIAH (UKAC1)

Latitude: 39.20º N	Longitude: 123.19º W	Elevation: 599 Feet
Location: Mendocino County in California		Bulletin Group: Russian Napa		River Group: Russian Napa

Issuance Time:

Dec 26 2025 at 1:28 PM PST

Next Issuance:

Dec 27 2025 at 9:00 AM PST

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 Army Corps of Engineers. View US Army Corps of Engineers Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ113)

Tonight: Mostly cloudy in the evening then becoming partly cloudy. Slight chance of rain showers in the evening. Lows 32 to 42.

Saturday: Sunny. Highs 45 to 55.

Saturday Night: Partly cloudy. Patchy valley fog overnight. Lows 31 to 41.

Sunday: Sunny. Highs 51 to 61.

Sunday Night and Monday: Clear. Lows 34 to 44. Highs 51 to 65.

Monday Night and Tuesday: Clear. Lows 36 to 46. Highs 55 to 66.

Tuesday Night: Mostly clear. Lows 37 to 47.

Wednesday: Mostly sunny. Highs 56 to 66.

Wednesday Night: Partly cloudy. Slight chance of rain. Lows 38 to 48.

New Years Day through Friday: Mostly cloudy. Chance of rain. Highs 47 to 60. Lows 39 to 49.

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.

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