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. Up to one half foot of saltwater inundation above ground level is possible near shorelines and tidal waterways. Between 8.1 feet MLLW at Arena Cove tide gauge and 8.9 feet MLLW at Crescent City harbor tide gauge. For the Coastal Flood Watch, High astronomical tides and large surf may cause major flooding in low lying areas along the Del Norte Coast, Mendocino Coast and southwest Humboldt Coast. Up to 1.5 foot of saltwater inundation above ground level is possible in low lying areas near shorelines and tidal waterways.

* WHERE…Coastal Del Norte, Southwestern Humboldt and Mendocino Coast Counties.

* WHEN…For the Coastal Flood Advisory, from 7 AM to 11 AM PST this morning. For the Coastal Flood Watch, from Friday morning through Sunday afternoon.

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