Coastal Flood Advisory

From the National Weather Service
STARTED:Friday, Nov. 25 @ 11 a.m.
ENDED:Friday, Nov. 25 @ 1 p.m.
AREAS:Northern Humboldt Coast


A Coastal Flood Advisory indicates that onshore winds and tides will combine to generate flooding of low areas along the shore.

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

Don’t be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean.


* WHAT…For the Coastal Flood Advisory, High astronomical tides will cause minor flooding in low lying areas around Humboldt Bay. Up to a half foot of saltwater inundation above ground level is possible in low lying areas near shorelines and tidal waterways (Between 8.8 and 8.9 feet MLLW at the North Spit tide gauge). For the Beach Hazards Statement, large unexpected waves along the coast.

* WHERE…Northern Humboldt Coast County.

* WHEN…For the Coastal Flood Advisory, from 11 AM to 1 PM PST Friday. For the Beach Hazards Statement, until 1 AM PST Friday.. .

* IMPACTS…Flooding of lots, parks, and roads with only isolated road closures expected. Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These waves can also move large objects such as logs, crushing anyone caught underneath.

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