CNRFC - Hydrology - River Guidance - Graphical RVF

*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.

Location:

EEL RIVER - FORT SEWARD (FTSC1)

Latitude: 40.22º N	Longitude: 123.63º W	Elevation: 217 Feet
Location: Humboldt County in California		Bulletin Group: North Coast		River Group: North Coast

Issuance Time:

Jun 14 2025 at 7:27 AM PDT

Next Issuance:

Jun 15 2025 at 9:00 AM PDT

Action/Monitor: 55.0 Feet

Minor Flood: 70.0 Feet

Moderate Flood: 80.0 Feet

Major Flood: 90.0 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*	69,200	29.71	Jan 14, 2024
2023*	119,000	38.84	Dec 31, 2022
2022*	50,100	26.93	Oct 24, 2021
2021*	17,000	18.07	Feb 2, 2021
2020*	32,000	22.62	Jan 26, 2020
Historical High Stage/Flow Events (Period of Record - Sept 1955 to Present) - Ranked by Flow
1965*	561,000	82.60	Dec 22, 1964
1956*	376,000	72.50	Dec 22, 1955
1986*	306,000	59.27	Feb 17, 1986
1995*	287,000	57.34	Jan 09, 1995
1974*	281,000	56.75	Jan 16, 1974
1997*	240,000	52.86	Jan 01, 1997
* Discharge affected to unknown degree by regulation or diversion

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
83.0 Feet	Considerable flooding of low lying areas north of the railroad tracks in Alderpoint and Fort Seward, and around the Dobbyns creek confluence. This forecast exceeds record river levels.
80.0 Feet	Flooding is probable in low lying areas north of the railroad tracks in alderpoint and fort seward, and around the dobbyns creek confluence.
78.0 Feet	Minor flooding is possible in low lying areas north of the railroad tracks in Alderpoint and Fort Seward, and around the Dobbyns Creek confluence.

Official 7 Day National Weather Service Forecast (CAZ106)

Tonight: Partly cloudy then becoming mostly cloudy in the late evening and overnight then becoming partly cloudy. Lows 41 to 51.

Sunday: Mostly cloudy. Highs 69 to 84.

Sunday Night: Mostly cloudy. Lows 40 to 50.

Monday: Mostly sunny. Highs 65 to 80.

Monday Night: Mostly clear. Lows 41 to 51.

Tuesday: Sunny. Highs 71 to 86.

Tuesday Night: Clear in the evening then becoming partly cloudy. Lows 45 to 55.

Wednesday through Thursday Night: Partly cloudy. Highs 69 to 84. Lows 42 to 52.

Friday and Friday Night: Partly cloudy. Highs 60 to 75. Lows 39 to 49.

Saturday: Sunny. Highs 62 to 77.

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 Eureka 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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Verification - Historical Graphical RVF
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