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 EEL RIVER - MIRANDA (MRNC1)
Latitude: 40.18º NLongitude: 123.78º WElevation: 263 Feet
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Jun 16, 2025 at 6:34 AM PDT
Action/Monitor: 27.0 FeetMinor Flood: 33.0 FeetModerate Flood: 38.0 FeetMajor Flood: 42.0 Feet
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  |  MRNC1

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What information is considered in this forecast?
Verification / Historical Plots
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Location Photographs

ESRI™ Locator Map
Flood Impacts
47.0 FeetExtensive and severe flooding of all areas along the river. Severe damage to roads, bridges and structures can be expected. US Highway 101 and Highway 254 (Avenue of the Giants) will likely be closed. All persons in the vicinity of the river should take appropriate actions to protect life and property.
45.0 FeetSevere flooding of many communities and roads along the river can be expected. Numerous road closures are likely, possibly including US Highway 101 and Highway 254 (Avenue of the Giants). All persons in the vicinity of the river should take appropriate actions to protect life and property.
42.0 FeetExtensive and severe flooding of many portions of the Avenue of the Giants, especially areas in the vicinity of Sylvandale, Myers Flat, Weott and Phillipsville. Expect numerous road closures in these areas.
38.0 FeetConsiderable flooding of portions of the Avenue of the Giants (Highway 254) in the vicinity of Sylvandale, Myers Flat and Weott, with numerous road closures expected. Minor flooding will begin along Phillipsville Road and adjacent low lying areas.
35.0 FeetConsiderable flooding of portions of Avenue of the Giants in the vicinity of Sylvandale, Myers Flat and Weott is likely. Expect closure Of Avenue of the Giants (Highway 254) in numerous locations.
33.0 FeetFlooding of portions of the Avenue of the Giants is likely in the vicinity of Sylvandale, and the Myers Flat and Redwood Giants Trailer Park. Flooding is also possible near Weott.
30.0 FeetFlooding of portions of the Avenue of the Giants may occur, especially in the vicinity of Sylvandale and the Myers Flat and Redwood Giants Trailer Park.
27.0 FeetFlooding of portions of the Avenue of the Giants (Highway 254) is possible near Sylvandale.
Official 7 Day National Weather Service Forecast   (CAZ106)
Today: Partly cloudy in the morning then clearing. Highs 65 to 80.

Tonight: Mostly clear. Lows 40 to 50.

Tuesday: Sunny. Highs 70 to 85.

Tuesday Night: Mostly clear. Lows 44 to 54.

Wednesday: Sunny. Highs 70 to 85.

Wednesday Night through Thursday Night: Partly cloudy. Lows 41 to 51. Highs 70 to 85.

Friday through Saturday Night: Partly cloudy. Highs 61 to 76. Lows 40 to 50.

Sunday: Mostly sunny. Highs 66 to 81.