Coastal Flood Advisory issued December 28 at 3:28AM PST until December 28 at 2:00PM PST by NWS Portland OR

* WHAT…For the High Surf Advisory, large waves and hazardous
surf conditions. Breakers 25 to 30 feet. For the Coastal Flood
Advisory, tidal overflow flooding.

* WHERE…Clatsop and Tillamook Coast.

* WHEN…For the High Surf Advisory, until 10 PM PST this
evening. For the Coastal Flood Advisory, until 2 PM PST this
afternoon.

* IMPACTS…Minor flooding, up to one foot above ground level,
during high tides is expected in the low lying areas near bays,
sloughs, and the lower reaches of the coastal rivers.

Destructive waves may wash over beaches, jetties, and other
structures unexpectedly. People can be swept off rocks and
jetties and drown while observing high surf. Minor beach erosion
may damage coastal properties and buildings. Higher than normal
water run-up is expected on beaches and low-lying shoreline.