CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

MATTOLE RIVER - ETTERSBURG (ETTC1)

Latitude: 40.14º N	Longitude: 123.99º W	Elevation: 579 Feet
Location: Humboldt County in California		Bulletin Group: North Coast		River Group: North Coast

Issuance Time:

Jun 26 2025 at 7:16 AM PDT

Next Issuance:

Jun 27 2025 at 9:00 AM PDT

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

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.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ104)

Tonight: Partly cloudy. Lows 47 to 57. North wind 10 to 20 mph.

Friday: Mostly sunny. Breezy. Highs 70 to 85. North wind 15 to 25 mph.

Friday Night: Mostly clear. Breezy. Lows 49 to 59. North wind 15 to 25 mph.

Saturday: Sunny. Highs 77 to 92. North wind 5 to 15 mph.

Saturday Night and Sunday: Mostly clear. Lows 49 to 59. Highs 77 to 92. Northwest wind 5 to 15 mph.

Sunday Night through Wednesday Night: Partly cloudy. Lows 48 to 58. Highs 74 to 89.

Thursday: Sunny. Highs 72 to 87.

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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To view other verification locations, use our Historical Graphical River Forecast Interface.