National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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KLAMATH RIVER - SEIAD VALLEY (SEIC1)
Latitude: 41.85º NLongitude: 123.23º WElevation: 1320 Feet
Location: Siskiyou County in CaliforniaRiver Group: North Coast
Monitor Stage: 13.0 FeetFlood Stage: 15.0 Feet

Observed Data Credit
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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
2021*
4,860
5.61
Jan 13, 2021
2020*
7,270
7.08
Apr 24, 2020
2019*
18,200
11.60
Apr 9, 2019
2018*
12,500
9.52
Apr 7, 2018
2017*
43,000
17.95
Feb 10, 2017
 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
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ080)
Rest of Today: Mostly cloudy. Slight chance of rain and snow in the late morning and early afternoon, then rain and snow late this afternoon. Snow level 4500 feet rising to 5000 feet this afternoon. Highs in the lower 40s to lower 50s. South winds 10 to 20 mph. Gusts up to 40 mph this afternoon. Chance of precipitation 20 percent.

Tonight: Rain and snow showers in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Snow may be heavy at times. Snow level 4500 feet lowering to 3500 feet after midnight. Snow accumulation of 4 to 7 inches. Lows in the lower to mid 30s. South winds 10 to 20 mph with gusts to around 40 mph shifting to the southwest well after midnight. Chance of precipitation near 100 percent.

Sunday: Rain showers, snow showers likely and slight chance of thunderstorms. Snow level 3500 feet rising to 4000 feet in the afternoon. Snow accumulation of 2 to 3 inches. Highs in the lower 30s to lower 40s. Southwest winds 10 to 15 mph. Chance of precipitation 80 percent.

Sunday Night: Mostly cloudy. Chance of rain and snow showers in the evening. Snow level 3000 feet in the evening. Lows in the mid 20s to lower 30s. Northwest winds 10 to 15 mph. Chance of precipitation 30 percent.

Monday: Partly cloudy. Highs in the lower to mid 40s. North winds 5 to 10 mph.

Monday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 20s to mid 30s.

Tuesday: Mostly cloudy. Slight chance of rain in the afternoon. Highs in the mid 40s to lower 50s.

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

Wednesday: Partly cloudy with a slight chance of rain and snow showers. Highs in the lower 40s to lower 50s.

Wednesday Night: Mostly clear. Lows in the mid 20s to lower 30s.

Thursday through Friday: Partly cloudy. Highs in the mid 40s to mid 50s. Lows in the mid 20s to mid 30s.
Impacts - E19 Information
15.0 FeetThe Klamath River begins to flow out of its banks in some areas. Some low-lying structures may be flooded.
20.0 FeetHighway 96 inundated 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 of Indian Creek.
28.0 FeetConsiderable flooding along the Klamath River in Siskiyou County. Sections of Highway 96 are flooded.
33.8 FeetMajor flooding is occuring along the entire reach of the Klamath River in Siskiyou County. Much of Highway 96 is impassable.
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.