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:

Feb 20 2019 at 1:54 PM PST

Next Issuance:

Feb 21 2019 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 cloudy with a slight chance of rain and snow showers in the evening, then partly cloudy after midnight. Colder. Lows 26 to 36. Snow level 2500 feet in the evening. Prevailing northwest winds up to 15 mph.

Thursday: Mostly sunny. Breezy. Highs 41 to 54. Prevailing north winds 5 to 15 mph increasing to 10 to 25 mph in the afternoon.

Thursday Night: Clear. Lows 27 to 35. Prevailing north winds 10 to 20 mph with gusts to around 35 mph.

Friday: Mostly sunny. Not as cool. Highs 45 to 58. Prevailing northwest winds up to 10 mph shifting to the south in the afternoon.

Friday Night: Mostly clear. Lows 30 to 36. Prevailing west winds up to 10 mph.

Saturday: Partly cloudy with a slight chance of rain and snow. Highs 41 to 56.

Saturday Night: Mostly cloudy with a chance of rain. Lows 34 to 40.

Sunday: Mostly cloudy with a chance of rain showers. Highs 41 to 55.

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

Monday through Tuesday: Rain likely. Highs 42 to 54. Lows 34 to 43.

Tuesday Night and Wednesday: Mostly cloudy with a chance of rain. Lows 37 to 43. Highs 47 to 61.

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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