CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

MATTOLE RIVER - PETROLIA (MTOC1)

Latitude: 40.31º N	Longitude: 124.28º W	Elevation: 40 Feet
Location: Humboldt County in California		Bulletin Group: North Coast		River Group: North Coast

Issuance Time:

Jul 07 2025 at 6:45 AM PDT

Next Issuance:

Jul 08 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)

Today: Partly cloudy in the morning then clearing. Highs 66 to 81. South wind around 5 mph shifting to the west in the afternoon.

Tonight: Partly cloudy. Lows 48 to 58. Northwest wind around 5 mph.

Wednesday: Partly cloudy in the morning then clearing. Highs 72 to 87. North wind 5 to 15 mph.

Wednesday Night: Partly cloudy. Lows 51 to 61. North wind 10 to 20 mph.

Thursday: Mostly sunny. Highs 75 to 90. North wind around 15 mph.

Thursday Night through Saturday: Mostly clear. Lows 51 to 61. Highs 79 to 94.

Saturday Night through Monday: Partly cloudy. Lows 52 to 62. Highs 76 to 91.

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.

NWS RSS Feed

Verification - Historical Graphical RVF
Month:	Day:	Year:	Cycle:
To view other verification locations, use our Historical Graphical River Forecast Interface.