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:

SOUTH FORK TRINITY RIVER - HYAMPOM (HYMC1)

Latitude: 40.65º N	Longitude: 123.49º W	Elevation: 1211 Feet
Location: Trinity County in California		Bulletin Group: North Coast		River Group: Klamath

Issuance Time:

Jun 16 2025 at 6:07 AM PDT

Next Issuance:

Jun 17 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 (CAZ108)

Today: Sunny. Highs 69 to 84.

Tonight: Clear. Lows 41 to 51.

Tuesday: Sunny. Highs 75 to 90.

Tuesday Night: Clear. Lows 46 to 56.

Wednesday: Sunny. Highs 76 to 91.

Wednesday Night through Thursday Night: Mostly clear. Lows 41 to 51. Highs 76 to 91.

Friday and Friday Night: Mostly clear. Highs 62 to 77. Lows 37 to 47.

Saturday: Mostly sunny. Highs 57 to 72.

Saturday Night and Sunday: Mostly clear. Lows 37 to 47. Highs 67 to 82.

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.