CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

TRINITY RIVER - ABOVE NORTH FORK TRINITY RIVER NEAR HELENA (TRNC1)

Latitude: 40.77º N	Longitude: 123.11º W	Elevation: 1380 Feet
Location: Trinity County in California		Bulletin Group: North Coast		River Group: Klamath

Issuance Time:

Dec 28 2025 at 8:55 AM PST

Next Issuance:

Dec 29 2025 at 9:00 AM PST

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 (CAZ107)

Tonight: Partly cloudy. Patchy valley fog. Lows 29 to 39.

Monday: Mostly sunny. Patchy valley fog in the morning. Highs 47 to 60.

Monday Night: Partly cloudy. Patchy valley fog overnight. Lows 34 to 44.

Tuesday: Sunny. Highs 48 to 63.

Tuesday Night: Partly cloudy. Lows 33 to 43.

Wednesday: Mostly cloudy. Highs 46 to 61.

Wednesday Night: Mostly cloudy. Chance of rain and snow. Lows 33 to 43.

New Years Day through Sunday: Rain and snow likely. Highs 41 to 56. Lows 33 to 43.

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.