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
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2025*	28,900	14.64	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)

Tonight: Mostly cloudy. Rain showers, snow showers and slight chance of thunderstorms This Evening, then chance of rain and snow showers after midnight. Snow level 4500 feet lowering to 3500 feet after midnight. Snow accumulation of 2 to 3 inches. Lows in the lower to mid 30s. Southeast winds 5 to 10 mph. Chance of precipitation 80 percent.

Sunday: Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Snow level 3500 feet rising to 4500 feet in the afternoon. Snow accumulation up to 1 inch. Highs in the lower 40s to lower 50s. Southeast winds 5 to 10 mph shifting to the west late in the afternoon. Chance of precipitation 80 percent.

Sunday Night: Mostly cloudy. Rain and snow showers likely in the evening, then chance of rain and snow showers after midnight. Snow level 4500 feet lowering to 4000 feet after midnight. Little or no snow accumulation. Lows in the lower 30s to lower 40s. Southwest winds 5 to 10 mph. Chance of precipitation 60 percent.

Monday: Mostly cloudy with a 30 percent chance of rain and snow showers. Snow level 4000 feet rising to 4500 feet in the afternoon. Highs in the lower 40s to lower 50s. West winds 5 to 10 mph.

Monday Night: Mostly cloudy. A 30 percent chance of rain showers in the evening. Snow level 5000 feet in the evening. Lows in the lower 30s to lower 40s. West winds 5 to 10 mph.

Tuesday: Mostly cloudy in the morning then clearing. Not as cool. Highs in the lower 50s to lower 60s.

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

Wednesday: Mostly cloudy. Chance of rain and snow in the morning, then rain and snow likely in the afternoon. Highs in the lower 40s to lower 50s.

Wednesday Night: Mostly cloudy in the evening then becoming partly cloudy. Chance of rain and snow. Colder. Lows in the mid 20s to lower 30s.

Thursday: Sunny. Highs in the mid 40s to mid 50s.

Thursday Night: Clear. Lows in the mid 20s to mid 30s.

Friday: Sunny, warmer. Highs in the mid 50s to mid 60s.

Friday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the mid 30s to lower 40s.

Saturday: Partly cloudy. Slight chance of rain in the afternoon. Highs in the mid 50s to mid 60s.

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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