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:

Dec 10 2018 at 1:34 PM PST

Next Issuance:

Dec 11 2018 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
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
2013*	257,000	6.23	Apr 6, 2013
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: Mostly clear. Lows 33 to 43. Prevailing north winds up to 10 mph with gusts to around 25 mph.

Tuesday: Mostly sunny. Highs 52 to 61. Prevailing west winds up to 10 mph with gusts to around 25 mph.

Tuesday Night: Partly cloudy in the evening then becoming mostly cloudy. A slight chance of rain at higher elevations. Lows 37 to 45. Prevailing west winds up to 10 mph with gusts to around 30 mph.

Wednesday: Partly cloudy in the morning then becoming mostly sunny. Highs 55 to 61. Prevailing north winds up to 15 mph with gusts to around 30 mph.

Wednesday Night: Partly cloudy. Lows 32 to 44. Prevailing northwest winds up to 10 mph.

Thursday: Partly cloudy. Highs 53 to 60.

Thursday Night: Partly cloudy. Lows 33 to 43.

Friday: Rain likely. Highs 46 to 55.

Friday Night: Mostly cloudy with a chance of rain. Lows 34 to 42.

Saturday: Mostly cloudy with a slight chance of rain. Highs 44 to 56.

Saturday Night: Mostly cloudy with a chance of rain. Lows 39 to 47.

Sunday: Rain. Highs 45 to 55.

Sunday Night: Rain likely. Lows 37 to 45.

Monday: Mostly cloudy with a chance of rain. Highs 48 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 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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