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Latitude: 40.91º N | Longitude: 124.06º W | Elevation: 13 Feet | |||
Location: Humboldt County in California | Bulletin Group: North Coast | River Group: North Coast |
Action/Monitor: 15.0 Feet | Minor Flood: 22.0 Feet | Moderate Flood: 24.0 Feet | Major Flood: 28.0 Feet |
Observed Data Credit | |
![]() | Raw streamflow data is provided by the US Geological Survey (USGS). |
Historical Stage/Flow Data |
|||
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
Most Recent 5 Years | |||
2024 |
53,900 |
27.26 |
Jan 13, 2024 |
2023 |
33,500 |
22.27 |
Dec 30, 2022 |
2022 |
10,500 |
13.20 |
Jan 5, 2022 |
2021 |
13,000 |
14.28 |
Feb 15, 2021 |
2020 |
12,500 |
14.10 |
Jan 26, 2020 |
Historical High Stage/Flow Events (Period of Record - Aug 1950 to Present) - Ranked by Flow | |||
1964 |
81,000 |
30.70 |
Dec 22, 1964 |
1956 |
80,000 |
-- |
Dec 22, 1955 |
1953 |
75,000 |
-- |
Jan 17, 1953
|
1996 |
54,700 |
24.17 |
Dec 30, 1995
|
Location Photographs | ||
ESRI™ Locator Map |
Flood Impacts | |
33.0 Feet | Disastrous flooding of all areas near the river from Blue Lake to the mouth. The river is forecast to exceed record levels. All roads in the vicinity of the river are likely to be innundated and travel will be severly restricted. Residents should be prepared to take appropriate action to protect lives and property. This would include homes in Blue Lake, Tyee City and the Arcata Bottoms, as well as US Highway 101 between Arcata and Mckinleyville. |
32.0 Feet | Disastrous flooding of all areas near the river from Blue Lake to the mouth. The river is forecast to approach record levels. All roads in the vicinity of the river are likely to be innundated and travel will be severly restricted. Residents should be prepared to take appropriate action to protect lives and property. This would include homes in Blue Lake, Tyee City and the Arcata Bottoms, as well as US Highway 101 between Arcata and Mckinleyville. |
30.0 Feet | Extensive, severe flooding of all low lying areas near the river from Blue Lake downstream to the mouth. Residents in these areas should be prepared to take appropriate action to protect lives and property. Critical locations include residential areas of Blue Lake, Tyee City, and the Arcata Bottoms, as well as US Highway 101 near Janes Road and areas near Giuntoli Lane. |
28.0 Feet | Severe flooding of all low lying areas near the river from Blue Lake downstream to the mouth. Residents in these areas should be prepared to take appropriate action to protect lives and property. This includes residential areas of Tyee City and the Arcata Bottoms, US Highway 101 near Janes Road, areas near Giuntoli Lane, and Mad River Beach Road. |
26.0 Feet | Severe flooding along Mad River Beach Road and extensive flooding of farmlands and other roads in the area. Flooding of residential areas around Tyee City is likely. Any low lying areas near the river could be flooded. Residents in these areas should be prepared to take appropriate action to protect lives and property. |
24.0 Feet | Extensive flooding along Mad River Beach Road and adjacent farmlands. Some homes along the river could be threatened. Flooding of roads to Tyee City. High tides and strong onshore winds will enhance flood impacts. |
23.0 Feet | Significant flooding of portions of Mad River Beach Road and adjacent farmlands is likely. May cause water to flow across roads to Tyee City. High tides and strong, onshore winds will aggravate flood impacts. |
22.0 Feet | Significant flooding of portions of Mad River Beach Road. Water may flow across roads to Tyee City. Flood impacts will be aggravated by high tides and strong, onshore winds. |
21.0 Feet | Flooding of Mad River Beach Road. Water may be flowing over roads to Tyee City. Flooding will be enhanced if the time of the crest is coincident with high tides and strong onshore winds. |
18.0 Feet | Minor flooding of Mad River Beach Road near Tyee City. |
15.0 Feet | Minor flooding begins on the Mad River Beach Road near Tyee City. |
Official 7 Day National Weather Service Forecast (CAZ103) |
Tonight: Mostly cloudy. Slight chance of rain showers in the evening. Patchy fog through the night. Lows 40 to 50. Northwest wind around 5 mph. Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs 53 to 63. Northwest wind 5 to 15 mph with gusts to around 30 mph. Tuesday Night: Mostly cloudy. Patchy fog overnight. Lows 40 to 50. North wind 5 to 15 mph. Wednesday: Mostly cloudy. Patchy fog. Highs 54 to 64. North wind around 15 mph with gusts to around 30 mph. Wednesday Night: Partly cloudy. Patchy fog. Lows 40 to 50. North wind around 15 mph. Thursday: Mostly cloudy. Patchy fog. Highs 56 to 66. North wind around 15 mph. Thursday Night: Cloudy. Lows 41 to 51. Friday and Friday Night: Mostly cloudy. Patchy fog. Highs 58 to 68. Lows 41 to 51. Saturday: Mostly cloudy. Patchy fog. Highs 53 to 63. Saturday Night: Mostly cloudy. Lows 41 to 51. Sunday and Sunday Night: Partly cloudy. Highs 54 to 64. Lows 40 to 50. Monday: Partly cloudy in the morning then clearing. Patchy fog. Highs 58 to 68. |
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. |