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.


TRINITY RIVER - TRINITY LAKE (CEGC1)
Latitude: 40.80º NLongitude: 122.76º WElevation: 2370 Feet
Location: Trinity County in CaliforniaBulletin Group: North CoastRiver Group: Klamath
Issuance Time: Jun 22, 2025 at 9:00 AM PDT
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Flow data on this product are unregulated / full natural flow.
2025 Water Year Accumulated Volume PlotCSV Ensemble Files (Data in kcfs):  Forecast Group  |  CEGC1

Tabular Monthly Volume Accumulation (1000s of Acre-Feet)
Probability Nov 1
2024
Dec 1
2024
Jan 1
2025
Feb 1
2025
Mar 1
2025
Apr 1
2025
May 1
2025
Jun 1
2025
Jul 1
2025
Aug 1
2025
Sep 1
2025
Oct 1
2025
10% -- -- -- -- -- -- -- -- 1580 1610 1630 1640
25% -- -- -- -- -- -- -- -- 1580 1610 1630 1640
50%
(Median)
-- -- -- -- -- -- -- -- 1580 1610 1620 1630
75% -- -- -- -- -- -- -- -- 1580 1610 1620 1630
90% -- -- -- -- -- -- -- -- 1580 1610 1620 1630

Location Photographs

ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ107)
Today: Sunny. Highs 73 to 88.

Tonight: Partly cloudy in the evening then becoming clear. Lows 43 to 53.

Monday: Sunny. Highs 83 to 98.

Monday Night: Partly cloudy. Lows 48 to 58.

Tuesday: Sunny. Highs 88 to 103.

Tuesday Night through Wednesday Night: Mostly clear. Lows 48 to 58. Highs 88 to 103.

Thursday: Mostly sunny. Highs 80 to 95.

Thursday Night: Mostly clear. Lows 48 to 58.

Friday and Friday Night: Clear. Highs 84 to 99. Lows 49 to 59.

Saturday: Sunny. Highs 90 to 105.