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



MAD RIVER - ARCATA (ARCC1)
Latitude: 40.91º NLongitude: 124.06º WElevation: 13 Feet
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Jul 10, 2025 at 8:24 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 Trend Plot
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MAD - ARCATA, NR (ARCC1) 07/10/2025Median Forecast: 1360 kaf | 146% of Mean | 157% of Median

Combination chart with 14 data series.
Created: 07/10/2025 at 08:24 AM PDT
The chart has 1 X axis displaying Water Year 2025 - Day (mm/dd). Range: 2024-09-27 20:38:24 to 2025-10-04 03:21:36.
The chart has 2 Y axes displaying Water Year Volumes (1000s Ac-Ft) and Daily Observed Volumes (1000s Ac-Ft).
End of interactive chart.
Text Products (RNOHFSOSV and RNOHFSWYV)
Raw ESP Water Year Streamflow Volumes Tracker
Water Year Streamflow Volume Accumulation Forecast

Location Photographs

ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ103)
Today: Mostly cloudy in the morning then clearing. Highs 64 to 79. Northwest wind 5 to 15 mph.

Tonight: Partly cloudy. Patchy fog overnight. Lows 50 to 60. Northwest wind around 10 mph.

Saturday: Partly cloudy. Patchy fog in the morning. Highs 68 to 83. Northwest wind around 10 mph.

Saturday Night: Partly cloudy. Patchy fog. Lows 50 to 60. Northwest wind around 10 mph.

Sunday: Partly cloudy. Patchy fog. Highs 67 to 82. Northwest wind around 10 mph.

Sunday Night through Monday Night: Partly cloudy. Lows 49 to 59. Highs 67 to 82.

Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog. Highs 62 to 77.

Tuesday Night and Wednesday: Partly cloudy. Patchy fog. Lows 49 to 59. Highs 62 to 77.

Wednesday Night and Thursday: Mostly cloudy. Patchy fog. Lows 48 to 58. Highs 62 to 77.