CNRFC - Hydrology - Observed River/Reservoir Conditions

KLAMATH RIVER - KLAMATH (KLMC1)

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

Action/Monitor: 30.0 Feet

Minor Flood: 38.0 Feet

Moderate Flood: 42.0 Feet

Major Flood: 46.0 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024*	142,000	31.13	Jan 14, 2024
2023*	139,000	30.86	Dec 31, 2022
2022*	53,800	20.30	Jan 8, 2022
2021*	76,300	23.67	Jan 13, 2021
2020*	88,300	25.19	Jan 26, 2020
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

Flood Impacts
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.
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.
65.0 Feet	Severe flooding is expected in the delta area, 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 flooding effects.
64.0 Feet	Severe flooding is 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 the top of the 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 flooding effects.
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 the top of the 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 flooding effects.
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 Rd, and the access road to Klamath Glen are likely to be flooded and impassable.
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 innundation of the transfer station.
42.0 Feet	Flooding of Highway 101 near Requa Rd, the access road to Klamath Glen, and adjacent low lying secondary roads near the delta is likely. Flooding will be amplified if coincident with high tides and strong onshore winds.
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.
38.0 Feet	Flooding of lowest lying areas is likely.
34.0 Feet	Flooding of lowest lying areas may occur.

Official 7 Day National Weather Service Forecast (CAZ101)

Tonight: Mostly cloudy. Patchy fog overnight. Lows 40 to 50. Northwest wind around 5 mph in the evening becoming light.

Saturday: Mostly cloudy. Patchy fog in the morning. Highs 55 to 66. Light winds becoming northwest around 5 mph in the afternoon.

Saturday Night: Mostly cloudy. Patchy fog overnight. Lows 41 to 51. Northwest wind around 5 mph.

Sunday: Cloudy. Patchy fog. Slight chance of rain. Highs 51 to 61. Southwest wind around 15 mph.

Sunday Night: Rain. Lows 41 to 51. South wind 5 to 15 mph.

Monday: Rain. Highs 51 to 61. South wind 5 to 15 mph.

Monday Night: Mostly cloudy. Slight chance of rain. Lows 39 to 49.

Tuesday through Thursday: Partly cloudy. Highs 57 to 72. Lows 38 to 48.

Thursday Night and Friday: Mostly cloudy. Lows 42 to 52. Highs 58 to 72.

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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