| Back to Obs River Map | <<< Previous River Point | | | Next River Point >>> | Printer Version |
| Latitude: 40.49º N | Longitude: 124.1º W | Elevation: 36 Feet | |||
| Location: Humboldt County in California | Bulletin Group: North Coast | River Group: North Coast | |||
| Action/Monitor: 45.0 Feet | Minor Flood: 51.0 Feet | Moderate Flood: 60.0 Feet | Major Flood: 65.0 Feet |
| Observed Data Credit | |
![]() | Raw streamflow data is provided by the US Geological Survey (USGS). |
Historical Stage/Flow Data |
|||
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months. |
|||
|
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
2025 |
164,000 | 40.09 |
Nov 22, 2024 |
2024 |
105,000 |
33.12 |
Jan 14, 2024 |
2023 |
165,000 |
40.89 |
Mar 15, 2023 |
2022 |
68,900 |
27.64 |
Oct 25, 2021 |
2021 |
30,100 |
19.80 |
Feb 2, 2021 |
| Historical High Stage/Flow Events (Period of Record - Oct 1916 to Present)* - Ranked by Flow | |||
1965 |
752,000 |
72.00 |
Dec 23, 1964 |
1956 |
541,000 |
61.90 |
Dec 22, 1955
|
1974 |
387,000 |
52.31 |
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 |
| Location Photographs | ||
| ESRI™ Locator Map |
| Flood Impacts | |
| 74.0 Feet | Extensive and severe flooding throughout the river valley with major damage to roads, bridges and structures. There will be numerous road closures including the Avenue of the Giants (Highway 254) and US Highway 101. |
| 72.0 Feet | Extensive and severe flooding of all areas adjacent to the river is expected 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. |
| 67.0 Feet | Expect significant flooding in all areas near the river with numerous road closures, including the Avenue of the Giants (Highway 254). |
| 62.0 Feet | Flooding of many low lying areas near the river is likely. Numerous closures along the Avenue of the Giants (Highway 254). |
| 55.0 Feet | Flooding of low lying areas near Shively is likely, along with possible closure of portions of the Avenue of the Giants (Highway 254). |
| 52.0 Feet | Minor flooding in the Shively area is possible. |
| 50.0 Feet | Flooding 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. |
| 48.0 Feet | Flooding 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. |
| 46.0 Feet | Minor 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. |
| Official 7 Day National Weather Service Forecast (CAZ103) |
| Tonight: Partly cloudy. Areas of frost overnight. Lows 32 to 42. East wind around 5 mph. Monday: Mostly sunny. Highs 53 to 63. East wind around 5 mph shifting to the northwest in the afternoon. Monday Night: Mostly clear. Lows 37 to 47. East wind around 5 mph. Tuesday: Sunny. Highs 54 to 64. South wind around 5 mph. Tuesday Night: Mostly cloudy. Patchy fog. Lows 37 to 47. East wind around 5 mph. Wednesday: Mostly cloudy. Chance of rain. Highs 53 to 63. Southeast wind around 5 mph. Wednesday Night: Mostly cloudy. Rain likely. Lows 40 to 50. New Years Day through Friday: Rain likely. Highs 51 to 61. Lows 40 to 50. Friday Night through Sunday: Rain likely. Lows 39 to 49. Highs 49 to 61. |
| 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. |