CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

KLAMATH RIVER - SEIAD VALLEY (SEIC1)

Latitude: 41.85º N	Longitude: 123.23º W	Elevation: 1320 Feet
Location: Siskiyou County in California		Bulletin Group: North Coast		River Group: Klamath

Issuance Time:

Jul 05 2025 at 7:42 AM PDT

Next Issuance:

Jul 06 2025 at 9:00 AM PDT

Action/Monitor: 13.0 Feet

Minor Flood: 15.0 Feet

Moderate Flood: 20.0 Feet

Major Flood: 28.0 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

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.

Official 7 Day National Weather Service Forecast (CAZ080)

Today: Sunny. Highs in the mid 70s to mid 80s. East winds around 5 mph shifting to the south early this afternoon, then shifting to the west late this afternoon.

Tonight: Clear. Lows in the lower to mid 50s. Northwest winds 5 to 10 mph shifting to the northeast after midnight.

Sunday: Sunny. Highs in the lower 80s to lower 90s. Northeast winds around 5 mph.

Sunday Night: Clear. Lows in the mid 50s to lower 60s. North winds 5 to 10 mph shifting to the northeast well after midnight.

Monday: Sunny. Highs in the mid 80s to mid 90s. Northeast winds around 5 mph shifting to the northwest late in the afternoon.

Monday Night: Partly cloudy in the evening then clearing. Lows around 60.

Tuesday and Tuesday Night: Mostly clear. Slight chance of thunderstorms. Highs in the lower 80s to lower 90s. Lows in the mid 50s to lower 60s.

Wednesday through Thursday Night: Clear. Highs in the lower 80s to lower 90s. Lows in the mid 50s to mid 60s.

Friday: Sunny. Highs in the mid 80s to mid 90s.

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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