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

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CLEAR LAKE - LAKEPORT (CLKC1)
Latitude: 39.04º NLongitude: 122.91º WElevation: 1318 Feet
Location: Lake County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Cache Putah
Issuance Time: Jan 24 2025 at 1:10 PM PSTNext Issuance: Jan 25 2025 at 9:00 AM PST
Action/Monitor: 8.0 FeetMinor Flood: 9.0 FeetModerate Flood: 11.9 FeetMajor Flood: 12.0 Feet

Please Note: 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.
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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Historical Stage/Flow Data
Water Year
Peak Storage (Ac-ft)
Stage (feet)
Date
 Most Recent 5 Years
2023*
344,400
8.23
Mar 22, 2023
2022*
7,360
0.55
Feb 13, 2022
2021*
49,100
1.23
Mar 24, 2016
2020*
191,900
4.70
Apr 16, 2020
2019*
421,900
9.96
Mar 2, 2019
 Historical High Stage/Flow Events (Period of Record - Oct 1984 to Present)**
1998
--
11.44
Feb 24, 1998
1986
480,900
11.34
Feb 2, 1986
1983
485,400
11.34
Jan 3, 1983
1914 471,800 11.09 Jan 28, 1914
* Data for the most recent 5 years utilizes mean daily values rather than instantaneous values
** Most recent continuous record back to Oct 1984 with segmented periods back to 1874
Location Photographs
ESRI™ Locator Map
Flood Impacts
11.0 FeetMajor 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.
9.0 FeetLow lying structures and some main roads around the lake are threatened by the high lake levels.
8.5 FeetMinor flooding of some lake side residents occurs. More buildings are threatened from Lakeport to Clearlake Oaks.
8.5 FeetMinor flooding of some lakeside residents occurs. More buildings are threatened from Lakeport to Clearlake Oaks.
8.0 FeetMinor flooding of some lakeside residents occurs.
Official 7 Day National Weather Service Forecast   (CAZ115)
Tonight: Partly cloudy. Windy. Lows 29 to 39. Northeast wind 20 to 30 mph at higher elevation.

Saturday: Mostly sunny. Slight chance of rain and snow in the afternoon. Windy. Snow level 2500 feet in the afternoon. Highs 46 to 56. Northeast wind around 20 mph in the valleys and northeast 20 to 30 mph at higher elevation.

Saturday Night: Partly cloudy. Slight chance of rain in the evening. Slight chance of snow through the night. Windy. Snow level 1000 to 1500 feet. Lows 25 to 35. Northeast wind around 20 mph in the valleys and northeast 20 to 30 mph at higher elevation.

Sunday: Sunny, breezy. Highs 47 to 57. Northeast wind 20 to 25 mph with gusts at higher elevations to around 50 mph.

Sunday Night and Monday: Clear. Lows 26 to 36. Highs 47 to 62.

Monday Night through Tuesday Night: Clear. Lows 31 to 41. Highs 52 to 64.

Wednesday: Sunny. Highs 53 to 63.

Wednesday Night: Partly cloudy. Slight chance of rain. Lows 32 to 42.

Thursday through Friday: Mostly cloudy. Chance of rain. Highs 49 to 60. Lows 34 to 44.
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.