Please Note: 1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.
2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
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: Rain in the evening, then rain showers and slight chance of thunderstorms overnight. Very windy. Some thunderstorms may produce heavy rainfall overnight. Lows 39 to 49. Southeast wind 20 to 30 mph increasing to 30 to 45 mph overnight. Gusts up to 60 mph.
Wednesday: Mostly cloudy. Rain in the morning, then chance of rain in the afternoon. Windy. Highs 52 to 62. South wind 20 to 30 mph becoming southeast around 10 mph in the afternoon.
Wednesday Night: Rain in the evening, then rain showers and slight chance of thunderstorms overnight. Windy. Some thunderstorms may produce heavy rainfall overnight. Lows 41 to 51. Southeast wind 5 to 15 mph increasing to 20 to 30 mph overnight. Gusts up to 45 mph.
Christmas Day: Windy. Rain showers and slight chance of thunderstorms. Highs 47 to 57. South wind 20 to 30 mph with gusts to around 45 mph.
Thursday Night and Friday: Rain. Lows 38 to 48. Highs 46 to 57. Southeast wind 5 to 15 mph with gusts to around 30 mph.
Friday Night: Mostly cloudy in the evening then becoming partly cloudy. Slight chance of rain. Lows 33 to 43.
Saturday: Mostly cloudy in the morning then clearing. Highs 47 to 57.
Saturday Night: Mostly clear. Lows 31 to 41.
Sunday and Sunday Night: Partly cloudy. Highs 49 to 59. Lows 31 to 41.
Monday and Monday Night: Mostly clear. Highs 52 to 62. Lows 33 to 43.
Tuesday: Mostly sunny. Highs 54 to 64.
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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