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		River Group: North Coast

Monitor Stage: 13.0 Feet

Flood Stage: 15.0 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
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
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

Official 7 Day National Weather Service Forecast (CAZ080)

Today: Partly cloudy This Morning then becoming mostly cloudy. Highs in the mid 40s to mid 50s. North winds around 5 mph.

Tonight: Mostly clear in the evening then becoming partly cloudy. Lows in the lower to mid 30s. North winds around 5 mph shifting to the east after midnight, then shifting to the south well after midnight.

Friday: Partly cloudy in the morning then becoming mostly cloudy. Highs in the mid 40s to mid 50s. Southwest winds 5 to 10 mph shifting to the west late in the afternoon.

Friday Night: Mostly cloudy. Slight chance of rain in the evening, then chance of rain and snow after midnight. Snow level 4500 feet. Lows in the mid 30s to lower 40s. Southwest winds 5 to 10 mph shifting to the south well after midnight. Chance of precipitation 30 percent.

Saturday: Mostly cloudy with a 40 percent chance of rain and snow. Snow level 4500 feet rising to 5000 feet in the afternoon. Highs in the lower 40s to lower 50s. South winds 10 to 15 mph.

Saturday Night through Sunday Night: Rain and snow likely. Lows in the lower to mid 30s. Highs in the lower 40s to lower 50s.

washingtons birthday: Mostly cloudy. Chance of rain and snow in the morning, then rain and snow likely in the afternoon. Highs in the mid 30s to mid 40s.

Monday Night: Rain and snow. Lows in the mid 20s to mid 30s.

Tuesday: Rain and snow. Highs in the mid 30s to lower 40s.

Tuesday Night: Rain and snow likely in the evening, then snow likely after midnight. Snow may be heavy at times after midnight. Lows in the mid 20s to lower 30s.

Wednesday: Rain and snow likely in the morning, then rain and snow in the afternoon. Snow may be heavy at times. Highs in the mid 30s to lower 40s.

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.

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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