CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

CLEAR LAKE - LAKEPORT (CLKC1)

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

Issuance Time:

Sep 22 2023 at 8:11 AM PDT

Next Issuance:

Sep 23 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
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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

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.

Official 7 Day National Weather Service Forecast (CAZ115)

Tonight: Clear. Lows 46 to 56.

Saturday: Sunny. Haze in the afternoon. Highs 71 to 81.

Saturday Night: Partly cloudy. Lows 45 to 55.

Sunday: Mostly cloudy. Highs 67 to 78.

Sunday Night: Mostly cloudy. Lows 46 to 56.

Monday: Mostly cloudy. Chance of rain. Highs 61 to 71.

Monday Night: Mostly cloudy. Rain likely. Lows 49 to 59.

Tuesday: Partly cloudy in the morning then clearing. Highs 65 to 78.

Tuesday Night through Friday: Mostly clear. Lows 48 to 58. Highs 69 to 84.

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
Month:	Day:	Year:	Cycle:
To view other verification locations, use our Historical Graphical River Forecast Interface.