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)

Tonight: Mostly clear until well after midnight then becoming partly cloudy. Widespread freezing fog late This Evening and overnight. Lows in the mid 20s to mid 30s. East winds 5 to 10 mph.

Monday: Sunny. Widespread freezing fog in the morning. Highs in the mid 40s to lower 50s. East winds 5 to 10 mph.

Monday Night: Mostly clear. Widespread freezing fog after midnight. Lows in the lower 30s to lower 40s. East winds around 5 mph.

Tuesday: Sunny. Widespread freezing fog in the morning. Highs in the mid 40s to mid 50s. East winds around 5 mph.

Tuesday Night: Mostly clear in the evening then becoming partly cloudy. Widespread freezing fog after midnight. Lows in the lower 30s to lower 40s. Southeast winds around 5 mph.

Wednesday: Mostly cloudy. Widespread freezing fog in the morning. Slight chance of rain in the afternoon. Highs in the mid 40s to mid 50s.

Wednesday Night: Mostly cloudy with a chance of rain and snow. Lows in the mid 30s to lower 40s.

New Years Day: 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.

Thursday Night: Rain and snow likely. Lows in the mid 30s to lower 40s.

Friday and Friday Night: Rain and snow likely. Highs in the lower 40s to lower 50s. Lows in the lower 30s to lower 40s.

Saturday: Mostly cloudy with rain and snow likely. Highs in the lower to mid 40s.

Saturday Night: Mostly cloudy with a chance of rain and snow. Lows in the lower to mid 30s.

Sunday: Mostly cloudy. Chance of rain and snow in the morning, then rain and snow likely in the afternoon. Highs in the lower to mid 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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