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:

Oct 20 2018 at 8:50 AM PDT

Next Issuance:

Oct 21 2018 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
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: Clear. Lows 45 to 60. Prevailing south winds up to 10 mph in the evening becoming light.

Sunday: Sunny. Highs 68 to 77 higher elevations and 71 to 84 lower elevations. Light winds.

Sunday Night: Clear. Lows 44 to 59. Prevailing west winds up to 10 mph.

Monday: Sunny. Highs 65 to 74 higher elevations and 69 to 81 lower elevations. Light winds.

Monday Night: Clear. Lows 43 to 57. Light winds.

Tuesday: Mostly sunny. Highs 64 to 78.

Tuesday Night: Partly cloudy. Lows 43 to 57.

Wednesday: Partly cloudy. Highs 63 to 78.

Wednesday Night: Mostly cloudy. Lows 46 to 58.

Thursday through Friday: Partly cloudy. Highs 66 to 81. Lows 46 to 61.

Friday Night and Saturday: Mostly clear. Lows 46 to 60. Highs 68 to 83.

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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