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 Mean Daily Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2025*	159,000	32.81	Dec 29, 2024
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
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
1997*	500,000***		Jan 01, 1997
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
*** Estimated

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)

Today: Chance of rain showers in the morning, then rain showers in the afternoon. Highs 52 to 62. South wind up to 10 mph.

Tonight: Rain showers. Lows 42 to 52. North wind 5 to 15 mph with gusts to around 30 mph.

Monday: Mostly cloudy. Rain showers in the morning, then chance of rain showers in the afternoon. Highs 50 to 60. North wind 5 to 15 mph with gusts to around 30 mph.

Monday Night: Partly cloudy. Slight chance of rain showers. Lows 38 to 48. North wind around 15 mph.

Tuesday: Mostly sunny. Highs 52 to 62. North wind 5 to 15 mph.

Tuesday Night: Mostly clear. Lows 36 to 46.

Wednesday: Mostly sunny in the morning then becoming mostly cloudy. Chance of rain showers. Highs 52 to 62.

Wednesday Night: Rain showers likely. Lows 41 to 51.

Thursday: Mostly cloudy. Rain showers likely. Highs 51 to 61.

Thursday Night: Mostly cloudy. Chance of rain showers. Lows 38 to 48.

Friday: Mostly cloudy in the morning then becoming partly cloudy. Slight chance of rain showers. Highs 54 to 64.

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

Saturday: Mostly cloudy in the morning then becoming partly cloudy. Chance of rain showers. Highs 54 to 64.

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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