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: Dec 04 2023 at 1:39 PM PSTNext Issuance: Dec 05 2023 at 9:00 AM PST
Monitor Stage: 8.0 FeetFlood Stage: 9.0 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 USGS Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
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
Impacts - E19 Information
8.5 FeetMinor flooding of some lake side 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.
Official 7 Day National Weather Service Forecast   (CAZ115)
Tonight: Partly cloudy until late tonight then becoming mostly cloudy. Patchy valley fog. Lows 42 to 52.

Tuesday: Partly cloudy. Patchy valley fog in the morning. Highs 60 to 70.

Tuesday Night: Mostly cloudy. Slight chance of rain through the night. Lows 40 to 50.

Wednesday: Rain. Highs 49 to 59.

Wednesday Night and Thursday: Rain likely. Lows 36 to 46. Highs 44 to 59.

Thursday Night: Partly cloudy. Areas of frost. Slight chance of rain. Lows 29 to 39.

Friday: Sunny. Patchy frost. Highs 47 to 58.

Friday Night: Partly cloudy. Lows 30 to 40.

Saturday and Saturday Night: Mostly cloudy. Slight chance of rain. Highs 49 to 59. Lows 33 to 43.

Sunday: Mostly cloudy. Slight chance of rain. Highs 54 to 64.

Sunday Night: Mostly cloudy. Lows 36 to 46.

Monday: Mostly cloudy in the morning then becoming partly cloudy. Highs 53 to 64.
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.