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:

Sep 21 2019 at 7:51 AM PDT

Next Issuance:

Sep 22 2019 at 9:00 AM PDT

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
Left of Gage Photo	Gage House Photo	Right of Gage Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ064)

Tonight: Clear. Lows 52 to 64. Prevailing northwest winds up to 10 mph.

Sunday: Mostly sunny in the morning then becoming partly cloudy. Highs 70 to 82 higher elevations and 74 to 88 lower elevations. Light winds becoming south up to 10 mph in the afternoon.

Sunday Night: Mostly clear. Lows 50 to 63. Prevailing northwest winds up to 15 mph.

Monday: Sunny. Highs 76 to 88. Prevailing north winds 5 to 15 mph with gusts to around 30 mph.

Monday Night: Clear. Lows 54 to 68. Prevailing north winds 10 to 20 mph with gusts to around 35 mph.

Tuesday: Sunny, warmer. Highs 86 to 101.

Tuesday Night: Clear. Lows 59 to 73.

Wednesday: Mostly sunny. Highs 83 to 98.

Wednesday Night: Clear, cooler. Lows 54 to 68.

Thursday and Thursday Night: Mostly clear. Not as warm. Highs 72 to 87. Lows 49 to 64.

Friday: Partly cloudy with a slight chance of rain showers. Highs 61 to 76.

Friday Night: Partly cloudy with a chance of rain showers. Colder. Lows 41 to 55.

Saturday: Mostly cloudy with a chance of rain showers. Highs 56 to 71.

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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