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.
Start of River Group | 

NAVARRO RIVER - NAVARRO (NVRC1)
Latitude: 39.17º NLongitude: 123.67º WElevation: 20 Feet
Location: Mendocino County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jun 16 2025 at 6:09 AM PDTNext Issuance: Jun 17 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: 23.0 FeetModerate Flood: 30.0 FeetMajor Flood: 34.0 Feet

Navarro River - Navarro (NVRC1)River Forecast Plot

Combination chart with 4 data series.
Forecast Posted: 06/16/2025 at 6:06 AM PDT ● Graphic Created: 06/16/2025 at 6:09 AM PDT
The chart has 1 X axis displaying Time. Range: 2025-06-11 13:00:00 to 2025-06-21 13:00:00.
The chart has 2 Y axes displaying Precipitation (In.) and Precipitation (In.).
End of interactive chart.

Chart

Combination chart with 7 data series.
The chart has 1 X axis displaying Observation / Forecast Time (Pacific Local Time). Range: 2025-06-11 06:00:00 to 2025-06-21 06:00:00.
The chart has 2 Y axes displaying Stage (Feet) and Flow (Cubic Feet per Second).
End of interactive chart.
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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Day:  
Year:  
Cycle:  
To view other verification locations, use our Historical Graphical River Forecast Interface.
Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2024
12,400
23.54
Feb 5, 2024
2023
14,100
25.56
Jan 8, 2023
2022
9,980
21.36
Oct 24, 2021
2021
801
6.30
Feb 2, 2021
2020
2,560
10.78
Dec 7, 2019
 Historical High Stage/Flow Events (Period of Record - Oct 1950 to Present) - Ranked by Flow
1955
64,500
40.60
Dec 22, 1955
2006
62,000
39.81
Dec 31, 2005
1974
61,000
39.13
Jan 16, 1974
1965
52,100
38.64
Dec 22, 1964
Location Photographs
ESRI™ Locator Map
Flood Impacts
34.0 FeetSignificant flooding over the south bank approximately 1 mile east of Highway 1 will occur. Damage to property including 6 homes is possible. Expect closure of Highway 128. Motorists should use alternate routes.
30.0 FeetWater will flow over the south bank of the river approximately 1 mile east of Highway 1, and begins to flood property in this area including six homes. Expect closure of Highway 128. Motorists should use alternate routes.
23.0 FeetFlooding of Highway 128 approximately 5 miles east of Highway 1 is certain and the road will be closed. Motorists should use alternate routes.
Official 7 Day National Weather Service Forecast   (CAZ112)
Today: Partly cloudy in the morning then clearing. Highs 67 to 82.

Tonight: Mostly clear. Lows 43 to 53.

Tuesday: Sunny. Highs 68 to 83.

Tuesday Night: Mostly clear. Lows 46 to 56.

Wednesday: Sunny. Highs 72 to 87.

Wednesday Night through Thursday Night: Mostly clear. Lows 42 to 52. Highs 72 to 87.

Friday through Saturday Night: Mostly clear. Highs 63 to 75. Lows 42 to 52.

Sunday: Sunny. Highs 66 to 81.
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.