CNRFC - Hydrology - Observed River/Reservoir Conditions

KLAMATH RIVER - SEIAD VALLEY (SEIC1)

Latitude: 41.85º N	Longitude: 123.23º W	Elevation: 1320 Feet
Location: Siskiyou County in California		Bulletin Group: North Coast		River Group: Klamath

Action/Monitor: 13.0 Feet

Minor Flood: 15.0 Feet

Moderate Flood: 20.0 Feet

Major Flood: 28.0 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*	21,100	12.50	Dec 29, 2024
2024*	10,400***	8.61	Jan 28, 2024
2023*	9,370	8.15	Apr 30, 2023
2022*	5,130	5.79	Apr 16, 2022
2021*	4,860	5.61	Jan 13, 2021
Historical High Stage/Flow Events (Period of Record - Jul 1951 to Present)** - Ranked by Flow
1965*	165,000	33.75	Dec 23, 1964
1974*	126,000	29.65	Jan 16, 1974
1956*	122,000	29.20	Dec 22, 1955
1997*	117,000	28.72	Jan 1, 1997
2006*	74,000	23.17	Dec 31, 2005
1982*	71,500	22.80	Dec 20, 1981

* Discharge affected by regulation or diversion
** Most recent continuous record back to Jul 1951 with segmented periods back to Oct 1912
*** Estimated

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
33.75 Feet	Major flooding is occurring along the entire reach of the Klamath River in Siskiyou County. Much of Highway 96 is impassable.
28.0 Feet	Expect considerable flooding along the Klamath River in Siskiyou County. Sections of Highway 96 are flooded.
20.0 Feet	Highway 96 innundated in low-lying spots along the Klamath River in Siskiyou County. Flooding is also likely at the confluence with the Scott River and the confluence with Indian Creek.
15.0 Feet	The Klamath River is at flood stage. The Klamath River begins to flow out of its banks in some areas. Some low-lying structures may be flooded.
13.0 Feet	The Klamath River is nearing bankfull.

Official 7 Day National Weather Service Forecast (CAZ080)

Tonight: Partly cloudy then becoming mostly clear after midnight then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 30s to lower 40s. Northeast winds around 5 mph.

Tuesday: Partly cloudy in the morning then becoming sunny. Highs in the mid 40s to mid 50s. North winds around 5 mph.

Tuesday Night: Mostly clear. Lows in the lower to mid 30s. Northeast winds around 5 mph shifting to the east well after midnight.

Wednesday: Sunny in the morning, then partly cloudy with a 10 percent chance of rain in the afternoon. Highs in the mid 40s to mid 50s. Southeast winds around 5 mph shifting to the south late in the afternoon.

Wednesday Night: Rain and snow likely. Snow level 6000 feet lowering to 5000 feet after midnight. Lows in the mid 30s to lower 40s. South winds 10 to 15 mph. Chance of precipitation 60 percent.

Thursday: Mostly cloudy with a chance of rain and snow. Highs in the lower 40s to lower 50s.

Thursday Night: Partly cloudy. Slight chance of rain and snow in the evening. Lows in the lower to mid 30s.

Friday and Friday Night: Mostly clear. Highs in the mid 40s to mid 50s. Lows in the lower 30s to lower 40s.

Saturday and Saturday Night: Partly cloudy. Highs in the lower 50s to lower 60s. Lows in the mid 30s to lower 40s.

Sunday: Partly cloudy with a slight chance of rain. Highs in the mid 40s to mid 50s.

Sunday Night: Mostly cloudy. Chance of rain in the evening, then chance of rain and snow after midnight. Lows in the mid 30s to lower 40s.

Monday: Mostly cloudy with a chance of rain and snow. Highs in the mid 40s to mid 50s.

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 Medford 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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