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


Latitude: 40.49º NLongitude: 124.1º WElevation: 36 Feet
Location: Humboldt County in CaliforniaRiver Group: North Coast
Monitor Stage: 45.0 FeetFlood Stage: 51.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS Data for this station location.

Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
 Most Recent 5 Years
Oct 25, 2021
Feb 2, 2021
Jan 26, 2020
Feb 27, 2019
Apr 7, 2018
 Historical High Stage/Flow Events (Period of Record - Oct 1916 to Present)* - Ranked by Flow
Dec 23, 1964
Dec 22, 1955
Jan 16, 1974
1995 368,000 51.30 Jan 9, 1995
1986 364,000 51.08 Feb 17, 1986
1997 360,000 54.97 Jan 1, 1997
* Most recent continuous record back to Oct 1916 with segmented periods back to Dec 1910
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ103)
Tonight: Mostly cloudy. Chance of rain through the night. Patchy fog overnight. Lows 42 to 52. Southeast wind around 10 mph.

Monday: Mostly cloudy. Patchy fog in the morning. Slight chance of rain in the morning. Highs 53 to 63. East wind around 5 mph shifting to the northwest in the afternoon.

Monday Night: Mostly cloudy. Patchy fog. Lows 36 to 46. North wind around 10 mph.

Tuesday: Mostly sunny. Highs 53 to 63. North wind around 5 mph.

Tuesday Night: Partly cloudy. Lows 35 to 45. East wind around 5 mph.

Wednesday: Mostly cloudy. Highs 54 to 64. Southeast wind around 5 mph.

Wednesday Night and Thursday: Mostly cloudy. Slight chance of rain. Lows 40 to 50. Highs 54 to 65.

Thursday Night through Friday Night: Mostly cloudy. Lows 39 to 49. Highs 55 to 67.

Saturday: Mostly cloudy in the morning then becoming mostly sunny. Slight chance of rain. Highs 57 to 67.

Saturday Night: Partly cloudy. Chance of rain. Lows 39 to 49.

Sunday: Mostly cloudy. Chance of rain. Highs 56 to 66.
Impacts - E19 Information
46.0 FeetMinor flooding is possible in the northern portion of the River's Edge RV Park in Rio Dell. Occupants of the park need to be ready to move their vehicles to higher ground.
48.0 FeetFlooding of the River's Edge RV Park in Rio Dell is expected. Occupants of the park may need to move their vehicles to higher ground.
50.0 FeetFlooding of the River's Edge RV Park in Rio Dell is likely. Occupants of the park will need to move their vehicles to higher ground.
52.0 FeetMinor flooding in the Shively area is possible.
55.0 FeetFlooding of low-lying areas near Shively likely, and possible closure of portions of the Avenue of the Giants (Highway 254).
62.0 FeetFlooding of many low-lying areas near the river is likely. Numerous closures along the Avenue of the Giants (Highway 254).
67.0 FeetExpect significant flooding in all areas near the river with numerous road closures, including the Avenue of the Giants (Highway 254).
72.0 FeetExtensive and severe flooding of all areas adjacent to the river with possible damage to roads, bridges, and other structures. Expect many road closures including the Avenue of the Giants (Highway 254) and possibly US Highway 101.
74.0 FeetExtensive and severe flooding throughout the river valley with major damage to roads, bridges, and structures. Numerous road closures including the Avenue of the Giants (Highway 254) and US Highway 101.
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.