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:

Mar 31 2023 at 1:37 PM PDT

Next Issuance:

Apr 01 2023 at 9:00 AM PDT

Monitor Stage: 8.0 Feet

Flood Stage: 9.0 Feet

Plot Type:

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
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
2017*	452,400	10.63	Feb 22, 2017
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: Mostly cloudy. Slight chance of rain showers in the morning, then chance of rain showers in the afternoon. Highs 45 to 58. Southwest wind 20 to 25 mph at higher elevation.

Tonight: Mostly cloudy. Lows 32 to 42.

Sunday: Partly cloudy in the morning then becoming mostly cloudy. Slight chance of rain showers in the afternoon. Snow level 2500 to 3000 feet. Highs 47 to 58.

Sunday Night: Partly cloudy. Breezy. Lows 26 to 36. West wind 20 to 25 mph.

Monday: Sunny. Highs 45 to 57. Northwest wind around 20 mph.

Monday Night: Mostly clear. Lows 26 to 36.

Tuesday and Tuesday Night: Partly cloudy. Highs 44 to 57. Lows 28 to 38.

Wednesday: Partly cloudy. Slight chance of rain showers and snow showers. Highs 49 to 59.

Wednesday Night through Thursday Night: Partly cloudy. Slight chance of rain showers. Lows 35 to 45. Highs 49 to 63.

Friday: Partly cloudy. Slight chance of rain showers. Highs 58 to 68.

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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