*** IMPORTANT *** Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.
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.
Extensive and severe flooding of all areas along the river. Severe damage to roads, bridges and structures can be expected. US Highway 101 and Highway 254 (Avenue of the Giants) will likely be closed. All persons in the vicinity of the river should take appropriate actions to protect life and property.
45.0 Feet
Severe flooding of many communities and roads along the river can be expected. Numerous road closures are likely, possibly including US Highway 101 and Highway 254 (Avenue of the Giants). All persons in the vicinity of the river should take appropriate actions to protect life and property.
42.0 Feet
Extensive and severe flooding of many portions of the Avenue of the Giants, especially areas in the vicinity of Sylvandale, Myers Flat, Weott and Phillipsville. Expect numerous road closures in these areas.
38.0 Feet
Considerable flooding of portions of the Avenue of the Giants (Highway 254) in the vicinity of Sylvandale, Myers Flat and Weott, with numerous road closures expected. Minor flooding will begin along Phillipsville Road and adjacent low lying areas.
35.0 Feet
Considerable flooding of portions of Avenue of the Giants in the vicinity of Sylvandale, Myers Flat and Weott is likely. Expect closure Of Avenue of the Giants (Highway 254) in numerous locations.
33.0 Feet
Flooding of portions of the Avenue of the Giants is likely in the vicinity of Sylvandale, and the Myers Flat and Redwood Giants Trailer Park. Flooding is also possible near Weott.
30.0 Feet
Flooding of portions of the Avenue of the Giants may occur, especially in the vicinity of Sylvandale and the Myers Flat and Redwood Giants Trailer Park.
27.0 Feet
Flooding of portions of the Avenue of the Giants (Highway 254) is possible near Sylvandale.
Official 7 Day National Weather Service Forecast (CAZ106)
Tonight: Partly cloudy then becoming mostly cloudy in the late evening and overnight then becoming partly cloudy. Lows 41 to 51.
Sunday: Mostly cloudy. Highs 69 to 84.
Sunday Night: Mostly cloudy. Lows 40 to 50.
Monday: Mostly sunny. Highs 65 to 80.
Monday Night: Mostly clear. Lows 41 to 51.
Tuesday: Sunny. Highs 71 to 86.
Tuesday Night: Clear in the evening then becoming partly cloudy. Lows 45 to 55.
Wednesday through Thursday Night: Partly cloudy. Highs 69 to 84. Lows 42 to 52.
Friday and Friday Night: Partly cloudy. Highs 60 to 75. Lows 39 to 49.
Saturday: Sunny. Highs 62 to 77.
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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