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| Latitude: 40.91º N | Longitude: 124.06º W | Elevation: 13 Feet | |
| Location: Humboldt County in California | River Group: North Coast | ||
| Issuance Time: | Aug 16 2022 at 7:40 AM PDT | Next Issuance: | Aug 17 2022 at 9:00 AM PDT |
| Monitor Stage: 15.0 Feet | Flood Stage: 22.0 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 | |||
2021 |
13,000 |
14.28 |
Feb 15, 2021 |
2020 |
12,500 |
14.10 |
Jan 26, 2020 |
2019 |
38,900 |
23.92 |
Feb 27, 2019 |
2018 |
15,800 |
14.78 |
Apr 7, 2018 |
2017 |
29,600 |
19.82 |
Jan 10, 2017 |
| 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 |
| Official 7 Day National Weather Service Forecast (CAZ103) |
| Today: Mostly cloudy early in the morning then clearing. Patchy fog. Highs 67 to 78. Northwest wind 5 to 15 mph. Tonight: Partly cloudy. Patchy fog. Lows 53 to 63. West wind around 10 mph shifting to the south overnight. Wednesday: Mostly sunny. Patchy fog in the morning. Highs 70 to 85. West wind around 10 mph. Wednesday Night: Partly cloudy. Lows 53 to 63. Northwest wind around 10 mph. Thursday: Mostly cloudy. Highs 66 to 81. Northwest wind around 5 mph. Thursday Night through Sunday Night: Mostly cloudy. Lows 49 to 59. Highs 66 to 81. Monday: Mostly cloudy in the morning then becoming partly cloudy. Highs 66 to 76. |
| Impacts - E19 Information | |
| 15.0 Feet | Minor flooding begins on the Mad River Beach Road near Tyee City. |
| 18.0 Feet | Minor flooding on Mad River Beach Road near Tyee City. |
| 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. |
| 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. |
| 23.0 Feet | Significant flooding of portions of Mad River Beach Road and adjacent farm lands is likely. May cause water to flow across roads to Tyee City. High tides and strong onshore winds will aggravate flood impacts. |
| 24.0 Feet | Extensive flooding along Mad River Beach Road and adjacent farm lands. Some homes along the river could be threatened. Flooding of roads to Tyee City. High tides and strong onshore winds worsen impacts. |
| 26.0 Feet | Severe flooding along Mad River Beach Road and extensive flooding of farm lands 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. |
| 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 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. |
| 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 Arcata Bottoms, as well as US Highway 101 near Janes Road and areas near Giuntoli Lane. |
| 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 inundated and travel will be severely 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. |
| 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 inundated and travel will be severely 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. |
| 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. |
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