Clear Lake at Lakeport, CA
River level and flood forecast · Lake County
The river is 7.0 ft below flood stage (9 ft).
Forecast to hold near 2.0 ft through Sat, Oct 17, 5 AM.
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 7:43 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 Clear Lake at Lakeport to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 12 ft |
| Moderate flood stage | 11.9 ft |
| Flood stage | 9 ft |
| Action stage | 8 ft |
| Record crest (February 24, 1998) | 11.51 ft |
What floods at each level
From the National Weather Service, highest first.
- 11 ftMajor flooding occurs all around the north end of the lake, especially in Lakeport and Clearlake Oaks. Highway 20 around the north end of the lake is closed in some areas.
- 9 ftLow lying structures and some main roads around the lake are threatened by the high lake levels.
- 8.5 ftMinor flooding of some lake side residents occurs. More buildings are threatened from Lakeport to Clearlake Oaks.
- 8.5 ftMinor flooding of some lakeside residents occurs. More buildings are threatened from Lakeport to Clearlake Oaks.
- 8 ftMinor flooding of some lakeside residents occurs.
Highest crests on record
- 11.51 ft — February 24, 1998
- 11.34 ft — February 2, 1986
- 11.34 ft — January 3, 1983
- 11.09 ft — January 28, 1914
- 10.63 ft — February 22, 2017
Recent crests: 8.39 ft (February 16, 2025) · 8.49 ft (February 22, 2024) · 8.47 ft (March 21, 2023) · 9.96 ft (March 2, 2019) · 5.07 ft (April 20, 2018)
Up and down the river, and nearby
- DownstreamCache Creek at Rumsey Bridge, CA
- Kelsey Creek near Kelseyville, CA
- Russian River near Hopland, CA
- Russian River near Cloverdale 6NW, CA
- Big Sulphur Creek near Cloverdale, CA
- Russian River near Talmage, CA
- Big Sulphur Creek at Geysers Resort NR Cloverdale, CA
- North Fork Cache Creek above Hough Springs, CA
- East Fork Russian River near Calpella, CA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CLKC1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.