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KLAMATH RIVER - SEIAD VALLEY (SEIC1)
Latitude:
41.85º N
Longitude:
123.23º W
Elevation:
1320 Feet
Location: Siskiyou County in CA
River Group: North Coast
Forecast Issued: May 06 2025 at 7:42 AM PDT
Next Issuance: May 07 2025 at 9:00 AM PDT

Action/
Monitor:
13.0 Ft
Minor
Flood:
15.0 Ft
Moderate
Flood:
20.0 Ft
Major
Flood:
28.0 Ft

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Graphical River Forecast - KLAMATH RIVER - SEIAD VALLEY (SEIC1)Graphical River Forecast - KLAMATH RIVER - SEIAD VALLEY (SEIC1)

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
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
2020*
7,270
7.08
Apr 24, 2020
 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
* Discharge affected by regulation or diversion
** Most recent continuous record back to Jul 1951 with segmented periods back to Oct 1912 *** Estimated
Location Photographs

ESRI™ Locator Map

Flood Impacts
33.75 FeetMajor flooding is occurring along the entire reach of the Klamath River in Siskiyou County. Much of Highway 96 is impassable.
28.0 FeetExpect considerable flooding along the Klamath River in Siskiyou County. Sections of Highway 96 are flooded.
20.0 FeetHighway 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 FeetThe 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 FeetThe Klamath River is nearing bankfull.