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 28 2020 at 7:59 AM PST

Next Issuance:

Jan 28 2020 at 3:00 PM 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
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
2014*	99,400	2.47	Apr 14, 2009
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

Official 7 Day National Weather Service Forecast (CAZ064)

Today: Cloudy with rain showers in the morning, then partly cloudy with a slight chance of rain showers in the afternoon. Highs 45 to 53 higher elevations and 52 to 60 lower elevations. Prevailing west winds up to 15 mph.

Tonight: Mostly clear. Lows 34 to 44. Prevailing northwest winds up to 10 mph.

Wednesday: Mostly cloudy. Warmer. Highs 53 to 65. Prevailing north winds up to 10 mph.

Wednesday Night: Mostly cloudy. Lows 40 to 49. Prevailing northwest winds up to 10 mph.

Thursday: Mostly cloudy. Highs 59 to 69. Prevailing northwest winds up to 10 mph with gusts to around 25 mph.

Thursday Night: Partly cloudy. Lows 43 to 53.

Friday: Mostly sunny. Highs 63 to 71.

Friday Night: Mostly clear. Lows 42 to 50.

Saturday: Partly cloudy. Highs 62 to 70.

Saturday Night and Sunday: Mostly clear. Cooler. Lows 38 to 46. Highs 49 to 61.

Sunday Night and Monday: Mostly clear. Lows 31 to 39. Highs 45 to 56.

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 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.

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Verification - Historical Graphical RVF
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