CNRFC - Hydrology - River Guidance - Graphical RVF

KLAMATH RIVER - KLAMATH (KLMC1)

Latitude: 41.51º N	Longitude: 123.98º W	Elevation: 6 Feet
Location: Del Norte County in California		River Group: North Coast

Issuance Time:

Oct 17 2021 at 7:44 AM PDT

Next Issuance:

Oct 18 2021 at 9:00 AM PDT

Monitor Stage: 30.0 Feet

Flood Stage: 38.0 Feet

Danger Stage: 59.0 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 Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2020*	88,300	25.19	Jan 26, 2020
2019*	156,000	32.64	Feb 27, 2019
2018*	97,000	25.95	Apr 7, 2018
2017*	265,000	41.64	Feb 10, 2017
2016*	199,000	36.33	Jan 18, 2016
Historical High Stage/Flow Events (Period of Record - December 1861 to Present)** - Ranked by Flow
1965*	557,000	55.30	Dec 23, 1964
1974*	529,000	41.96	Jan 16, 1974
1986*	459,000	36.76	Feb 18, 1986
1861*	450,000	60.00	Dec -- 1861
1890*	425,000	63.00	Feb --, 1890
1956*	425,000	49.70	Dec 22, 1955
* Discharge affected to unknown degree by regulation or diversion
** Most recent continuous record back to 1932 with segmented periods back to Dec 1861

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ101)

Tonight: Rain showers in the evening, then chance of rain showers overnight. Lows 38 to 48. Northwest wind around 15 mph becoming north around 5 mph overnight.

Monday: Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs 51 to 61. Northwest wind around 5 mph shifting to the southwest in the afternoon.

Monday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows 37 to 47. Southeast wind around 10 mph.

Tuesday: Mostly cloudy. Chance of rain showers. Highs 56 to 66. South wind 5 to 15 mph.

Tuesday Night and Wednesday: Rain showers. Lows 42 to 52. Highs 55 to 66. South wind 10 to 20 mph.

Wednesday Night: Mostly cloudy. Chance of rain showers. Lows 45 to 55.

Thursday: Mostly cloudy. Rain showers likely. Highs 59 to 69.

Thursday Night: Rain showers. Lows 44 to 54.

Friday: Cloudy. Chance of rain showers. Highs 53 to 63.

Friday Night: Mostly cloudy. Chance of rain showers. Lows 41 to 51.

Saturday through Sunday: Rain showers. Highs 51 to 62. Lows 41 to 51.

Impacts - E19 Information
34.0 Feet	Flooding of lowest lying areas may occur.
38.0 Feet	Flooding of lowest lying areas is likely.
40.0 Feet	Flooding may occur on the access road to Klamath Glen and adjacent low lying secondary roads near the delta. Flooding will be amplified if coincident with high tides and strong, onshore winds.
42.0 Feet	Flooding of US Highway 101 near Requa Road, the road to Klamath Glen, and adjacent low-lying secondary roads near the delta is likely. Flooding will be amplified with high tides and strong onshore winds.
46.0 Feet	Numerous road closures are expected including US Highway 101 and secondary roads in the area. Significant flooding of many homes and businesses will occur. Loss of power is likely due to inundation of transfer station.
49.0 Feet	Extensive flooding along the river from Blue Creek downstream to the Pacific Ocean. Most roads in the area, including US Highway 101, Requa Road, and the road to Klamath Glen are likely to be flooded and impassable.
63.0 Feet	Severe flooding of the delta area below the levee. Most roads will be flooded and impassable, including US Highway 101 and numerous secondary roads. The forecast level is within 2.5 feet of top of levee protecting Klamath Glen. Any persons living or working in areas protected by the levee should be prepared to take appropriate action and move to higher ground. High tides and strong onshore winds will amplify effects.
64.0 Feet	Severe flooding in the delta area is likely, particularly US Highway 101 in the vicinity of Requa Road, the access road to Klamath Glen, and secondary roads. The forecast level is within 1.5 feet of top of levee. Any persons living or working in areas protected by the levee should be prepared to take appropriate action and move to higher ground. High tides and strong onshore winds will amplify effects.
65.0 Feet	Severe flooding in the delta area is likely, particularly US Highway 101 in the vicinity of Requa Road, the access road to Klamath Glen, and secondary roads. The forecast level is within 0.5 feet of top of levee. Any persons living or working in areas protected by the levee should take appropriate action and move to higher ground. High tides and strong onshore winds will amplify effects.
65.5 Feet	Extensive and severe flooding can be expected from above Klamath Glen to the Pacific Ocean including the towns of Klamath and Klamath Glen and US Highway 101. The forecast level is at the top of the levee. Any persons living or working in areas protected by the levee should take appropriate action and move to higher ground. High tides and strong onshore winds amplify effects.
66.0 Feet	Extensive and severe flooding can be expected from above Klamath Glen to the Pacific Ocean including the towns of Klamath and Klamath Glen and US Highway 101. The forecast level is over the top of the levee. Any persons living or working in areas protected by the levee should take appropriate action and move to higher ground.

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 Eureka 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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