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: Feb 20 2018 at 7:39 AM PSTNext Issuance: Feb 20 2018 at 3:00 PM PST
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
2016*
330,200
7.91
Mar 24, 2016
2015*
186,000
4.56
Feb 22, 2015
2014*
99,400
2.47
Apr 14, 2009
2013*
257,000
6.23
Apr 6, 2013
2012*
242,800
5.90
Apr 29, 2012
 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   (CAZ064)
Today: Areas of frost in the morning. Mostly sunny. Highs 39 to 51. Prevailing northwest winds up to 10 mph in the morning becoming light.

Tonight: Mostly cloudy. A slight chance of rain and snow showers after midnight. Areas of frost after midnight. Lows 25 to 33. Prevailing southwest winds up to 10 mph in the evening becoming light.

Wednesday: Mostly cloudy in the morning then becoming partly cloudy. A slight chance of rain and snow showers. Highs 41 to 53. Snow level 1500 feet increasing to 2500 feet in the afternoon. Light winds.

Wednesday Night: Mostly cloudy with a slight chance of rain and snow showers in the evening, then partly cloudy after midnight. Lows 24 to 36. Snow level 3000 feet. Prevailing southwest winds up to 10 mph.

Thursday: Mostly cloudy in the morning, then partly cloudy with a slight chance of rain and snow showers in the afternoon. Highs 40 to 52. Snow level 1500 feet. Prevailing northwest winds up to 15 mph.

Thursday Night: Partly cloudy with a slight chance of rain and snow showers. Lows 23 to 35.

Friday: Mostly sunny. Highs 46 to 56.

Friday Night: Mostly clear. Lows 29 to 37.

Saturday: Mostly cloudy. Highs 45 to 57.

Saturday Night: Partly cloudy with a slight chance of rain showers. Lows 30 to 40.

Sunday: Partly cloudy with a slight chance of rain and snow showers. Highs 44 to 54.

Sunday Night: Partly cloudy with a chance of rain and snow showers. Lows 31 to 41.

Monday: Mostly cloudy with a chance of rain and snow showers. Highs 44 to 52.
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 Sacramento 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.