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
Issuance Time: May 18 2021 at 7:49 AM PDTNext Issuance: May 19 2021 at 9:00 AM PDT
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.

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
2020*
191,900
4.70
Apr 16, 2020
2019*
421,900
9.96
Mar 2, 2019
2018*
207,100
5.06
Apr 24, 2018
2017*
452,400
10.63
Feb 22, 2017
2016*
330,200
7.91
Mar 24, 2016
 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: Sunny. Highs 68 to 82. Northwest wind around 20 mph in the afternoon.

Tonight: Clear. Lows 40 to 50. Northwest wind around 20 mph in the evening.

Wednesday: Sunny. Highs 62 to 76. Northwest wind around 20 mph in the afternoon.

Wednesday Night: Mostly clear. Breezy. Lows 34 to 44. Northwest wind 20 to 25 mph.

Thursday: Sunny. Highs 58 to 70. Northwest wind around 20 mph.

Thursday Night through Saturday Night: Mostly clear. Lows 43 to 53. Highs 63 to 78.

Sunday through Monday: Mostly clear. Highs 73 to 88. Lows 46 to 56.
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.
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.