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

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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: Jul 09 2025 at 7:27 AM PDTNext Issuance: Jul 10 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: 23.0 FeetModerate Flood: 30.0 FeetMajor Flood: 34.0 Feet

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.
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)
Tonight: Mostly clear. Patchy valley fog overnight. Lows 50 to 60.

Thursday: Sunny. Haze in the afternoon. Highs 83 to 98.

Thursday Night: Mostly clear. Haze through the night. Patchy valley fog overnight. Lows 52 to 62.

Friday: Sunny. Highs 85 to 100.

Friday Night: Clear. Lows 54 to 64.

Saturday: Sunny. Highs 81 to 96.

Saturday Night: Mostly clear. Patchy valley fog. Lows 51 to 61.

Sunday: Sunny. Highs 80 to 95.

Sunday Night: Partly cloudy. Patchy valley fog. Lows 52 to 62.

Monday: Sunny. Highs 78 to 93.

Monday Night and Tuesday: Mostly clear. Patchy valley fog. Lows 51 to 61. Highs 78 to 93.

Tuesday Night and Wednesday: Partly cloudy. Patchy valley fog. Lows 49 to 59. Highs 76 to 91.
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.