CNRFC - Hydrology - River Guidance - Graphical RVF

CLEAR LAKE - LAKEPORT (CLKC1)

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

Issuance Time:

Jan 26 2021 at 2:21 PM PST

Next Issuance:

Jan 27 2021 at 9:00 AM PST

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
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
2015*	186,000	4.56	Feb 22, 2015
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)

Today: Snow showers in the morning, then rain showers and snow showers likely in the afternoon. Snow level 1000 feet rising to 3000 feet in the afternoon. Snow accumulations of 3 to 4 inches. Highs 41 to 51.

Tonight: Rain showers. Lows 34 to 44.

Thursday: Rain likely. Highs 44 to 54.

Thursday Night: Mostly cloudy. Chance of rain showers. Snow level 3000 to 3500 feet. Lows 31 to 41.

Friday: Mostly cloudy. Patchy valley fog. Highs 44 to 54.

Friday Night through Saturday Night: Mostly cloudy. Chance of rain. Lows 35 to 45. Highs 44 to 54.

Sunday and Sunday Night: Rain likely. Highs 48 to 58. Lows 38 to 48.

Monday: Rain. Highs 47 to 57.

Monday Night and Tuesday: Mostly cloudy. Chance of rain. Lows 34 to 44. Highs 44 to 57.

Impacts - E19 Information
8.5 Feet	Minor flooding of some lake side 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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Verification - Historical Graphical RVF
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