National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

*** 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.


SOUTH FORK TRINITY RIVER - HYAMPOM (HYMC1)
Latitude: 40.65º NLongitude: 123.49º WElevation: 1211 Feet
Location: Trinity County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Jun 16, 2025 at 6:39 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.
Threshold Exceedance Plot                  Product Information        CSV Ensemble Files (Data in kcfs):  Forecast Group  |  HYMC1

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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.