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 CaliforniaRiver Group: Lower Sacramento
Monitor Stage: 8.0 FeetFlood Stage: 9.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Storage (Ac-ft)
Stage (feet)
Date
 Most Recent 5 Years
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
2018*
207,100
5.06
Apr 24, 2018
 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
Official 7 Day National Weather Service Forecast   (CAZ115)
Today: Mostly cloudy. Patchy valley fog in the morning. Chance of snow showers in the morning. Rain showers likely through the day. Snow showers in the afternoon. Snow level 2000 to 2500 feet. Snow accumulations up to 2 inches. Highs 39 to 50. West wind around 20 mph in the afternoon.

Tonight: Mostly cloudy. Slight chance of rain showers and snow showers. Snow level 2000 feet. Lows 27 to 37.

Monday: Mostly cloudy. Slight chance of rain showers and snow showers in the morning, then rain showers likely in the afternoon. Snow level 2000 feet in the morning. Snow accumulations up to 2 inches. Highs 41 to 51.

Monday Night: Rain showers. Lows 36 to 46.

Tuesday: Rain showers. Highs 46 to 56. South wind around 20 mph.

Tuesday Night and Wednesday: Mostly cloudy. Chance of rain showers. Lows 35 to 45. Highs 46 to 59.

Wednesday Night: Partly cloudy. Lows 30 to 40.

Thursday through Friday: Mostly clear. Highs 52 to 66. Lows 31 to 41.

Friday Night: Partly cloudy in the evening then becoming mostly cloudy. Chance of rain. Lows 35 to 45.

Saturday: Mostly cloudy. Chance of rain. Highs 48 to 59.
Impacts - E19 Information
8.0 FeetMinor flooding of some lakeside residents occurs.
8.5 FeetMinor flooding of some lakeside residents occurs. More buildings are threatened from Lakeport to Clearlake Oaks.
9.0 FeetLow lying structures and some main roads around the lake are threatened by the high lake levels.
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.
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.