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
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
2019*	18,200	11.60	Apr 9, 2019
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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ080)

Tonight: Partly cloudy This Evening then becoming mostly clear. Lows in the mid 40s to lower 50s. Southeast winds 5 to 10 mph.

Wednesday: Partly cloudy in the morning, then mostly cloudy with showers likely and chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs in the lower 60s to lower 70s. South winds 15 to 20 mph with gusts to around 35 mph. Chance of precipitation 60 percent.

Wednesday Night: Rain showers in the evening, then rain and snow showers after midnight. Snow level 6500 feet lowering to 4500 feet after midnight. Snow accumulation up to 1 inch. Lows in the mid 30s to lower 40s. Windy. South winds 10 to 20 mph with gusts to around 35 mph increasing to 20 to 30 mph with gusts to around 45 mph late in the evening and overnight. Chance of precipitation 80 percent.

Thursday: Rain and snow showers in the morning, then rain and snow in the afternoon. Snow level 4000 feet rising to 4500 feet in the afternoon. Highs in the lower 40s to lower 50s. Windy. South winds 20 to 30 mph. Gusts up to 45 mph decreasing to 40 mph in the afternoon. Chance of precipitation near 100 percent.

Thursday Night: Rain and snow. Snow may be heavy at times in the evening. Snow level 4500 feet. Lows in the mid 30s to lower 40s. Breezy. Southwest winds 15 to 25 mph. Gusts up to 40 mph. Chance of precipitation near 100 percent.

Friday: Rain and snow showers. Highs in the mid 30s to mid 40s.

Friday Night: Mostly cloudy. Rain and snow showers in the evening, then chance of rain and snow showers after midnight. Colder. Lows in the mid 20s to mid 30s.

Saturday: Mostly cloudy in the morning then becoming partly cloudy. Slight chance of rain and snow showers. Highs in the lower 40s to lower 50s.

Saturday Night: Mostly cloudy. Slight chance of rain and snow showers after midnight. Lows in the lower to mid 30s.

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

Sunday Night: Rain and snow showers in the evening, then rain and snow showers likely after midnight. Lows in the lower to mid 30s.

Monday: Rain and snow showers likely. Highs in the mid 30s to mid 40s.

Monday Night: Rain and snow showers likely. Lows in the lower to mid 30s.

Tuesday: Rain and snow showers likely in the morning, then rain and snow showers in the afternoon. Highs in the mid 30s 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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