CNRFC - Hydrology - Observed River/Reservoir Conditions

CLEAR LAKE - LAKEPORT (CLKC1)

Latitude: 39.04º N	Longitude: 122.91º W	Elevation: 1318 Feet
Location: Lake County in California		River Group: Lower Sacramento

Monitor Stage: 8.0 Feet

Flood Stage: 9.0 Feet

Observed Data Credit
	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
Left of Gage Photo	Gage House Photo	Right of Gage Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ115)

Tonight: Partly cloudy early in the evening then becoming mostly cloudy. Lows 40 to 50.

Thursday: Mostly cloudy. Highs 57 to 70. West wind around 20 mph in the afternoon.

Thursday Night: Mostly cloudy. Slight chance of rain. Lows 41 to 51. West wind around 20 mph in the evening.

Friday: Partly cloudy. Slight chance of rain showers. Highs 55 to 68. Northwest wind around 20 mph.

Friday Night and Saturday: Mostly clear. Lows 36 to 46. Highs 58 to 73. West wind around 20 mph.

Saturday Night: Partly cloudy. Lows 40 to 50.

Sunday and Sunday Night: Clear. Highs 63 to 76. Lows 40 to 50.

Monday: Sunny. Highs 63 to 76.

Monday Night: Clear. Lows 38 to 48.

Tuesday: Sunny. Highs 64 to 77.

Tuesday Night: Partly cloudy. Lows 38 to 48.

Wednesday: Sunny. Highs 61 to 73.

Impacts - E19 Information
8.0 Feet	Minor flooding of some lakeside residents occurs.
8.5 Feet	Minor flooding of some lakeside residents occurs. More buildings are threatened from Lakeport to Clearlake Oaks.
9.0 Feet	Low lying structures and some main roads around the lake are threatened by the high lake levels.
11.0 Feet	Major 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.

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