Navarro River near Navarro, CA
River level and flood forecast · Mendocino County
The river is 21.9 ft below flood stage (23 ft).
Forecast to hold near 1.1 ft through Sat, Oct 17, 5 AM.
Flow: 4 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 7:33 AM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Navarro River near Navarro to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 34 ft |
| Moderate flood stage | 30 ft |
| Flood stage | 23 ft |
| Action stage | 17 ft |
| Record crest (December 22, 1955) | 40.6 ft |
What floods at each level
From the National Weather Service, highest first.
- 34 ftSignificant flooding across the south/left bank one mile east of Highway 1. Damage to six homes in this area along the river is possible. Flooding and full closure of Highway 128.
- 30 ftFlooding of six properties on the south/left bank one mile east of Highway 1. Flooding and full closure of Highway 128.
- 23 ftFlooding of Highway 128 five miles east of Highway 1 will lead to a full highway closure.
- 17 ftPotential flooding of Highway 128 nine miles east of Highway 1. Roadway flooding could result in a highway closure.
- 4.5 ftPotential flooding of Highway 128 within a quarter mile of the Highway 1 junction. This occurs only when a sandbar obstructs river flow into the ocean and causes river levels to rise. Roadway flooding could result in a highway closure.
Highest crests on record
- 40.6 ft — December 22, 1955
- 39.81 ft — December 31, 2005
- 38.64 ft — December 22, 1964
- 38.2 ft — December 15, 1937
- 37.16 ft — February 27, 2019
Recent crests: 23.08 ft (January 5, 2026) · 22.55 ft (December 21, 2025) · 28.77 ft (February 4, 2025) · 23.53 ft (February 5, 2024) · 24.59 ft (March 14, 2023)
Up and down the river, and nearby
- Noyo River near Fort Bragg, CA
- Garcia River at Eureka Hill Rd Near Point Arena, CA
- Russian River near Talmage, CA
- N. Fork Gualala River above S. Fork Gualala NR Gualala, CA
- East Fork Russian River near Calpella, CA
- Russian River near Hopland, CA
- South Fork Gualala River near The Sea Ranch, CA
- Elder Creek (CA) near Branscomb, CA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NVRC1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.