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:

May 25 2019 at 8:46 AM PDT

Next Issuance:

May 26 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
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)

Today: Mostly cloudy. Numerous rain showers in the morning, then a chance of rain showers in the afternoon. Highs 48 to 58 higher elevations and 57 to 63 lower elevations. Prevailing north winds up to 15 mph with gusts to around 30 mph.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Lows 42 to 48. Prevailing northeast winds up to 10 mph shifting to the west after midnight.

Memorial Day: Mostly cloudy. At higher elevations, a slight chance of showers and thunderstorms in the afternoon. Warmer. Highs 57 to 67 higher elevations and 65 to 72 lower elevations. Prevailing northeast winds up to 10 mph shifting to the southeast in the afternoon.

Monday Night: Partly cloudy. Lows 46 to 54. Prevailing southwest winds up to 10 mph shifting to the north after midnight.

Tuesday: Mostly sunny. Warmer. Highs 65 to 77 higher elevations and 73 to 82 lower elevations. Prevailing north winds up to 15 mph.

Tuesday Night: Mostly clear. Lows 50 to 60.

Wednesday: Partly cloudy with a slight chance of showers and thunderstorms. Highs 70 to 85.

Wednesday Night: Mostly clear. Lows 50 to 60.

Thursday: Partly cloudy with a slight chance of showers and thunderstorms. Highs 69 to 84.

Thursday Night through Saturday: Mostly clear. Lows 50 to 62. Highs 71 to 86.

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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