INSTRUCTIONS

A Coastal Flood Watch means that flooding is possible but not imminent. Coastal residents in the watch area should begin preparations for rising water and take appropriate action to protect life and property.

Feet Above Ground is locally defined as feet above the Highest Astronomical Tide or HAT.

DESCRIPTION

* WHAT…For the Coastal Flood Advisory, High astronomical tides will cause minor flooding in low lying areas around Humboldt Bay. Up to one half foot of saltwater inundation above ground level is possible near shorelines and tidal waterways. Between 8.8 and 9.1 feet MLLW at the North Spit tide gauge is predicted. For the Coastal Flood Watch flooding is possible around Humboldt Bay Thursday through Saturday at high tide. 1 to 1.5 feet of saltwater inundation (9.5 to 10 feet MLLW) is possible Friday and Saturday.

* WHERE…Northern Humboldt County Coast.

* WHEN…For the Coastal Flood Advisory, from 7 AM to 9 AM PST Wednesday. For the Coastal Flood Watch, from Thursday morning through Saturday afternoon. High tide is at 8:00 AM at the Humboldt Bay North Spit tide gauge Wednesday. Saltwater inundation will be possible 1 to 2 hours before and after high tide.

* IMPACTS…Several coastal roads may be closed. Low lying property and some critical infrastructure will be inundated. Some shoreline erosion may occur.