...COASTAL FLOOD WARNING REMAINS IN EFFECT FROM 7 AM WEDNESDAY TO 10 PM PST THURSDAY... ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM PST THURSDAY... * WHAT...For the Coastal Flood Warning, moderate to major coastal flooding is expected. Inundation of 2 to 3 feet above ground level is possible along shorelines and low lying coastal areas. For the High Surf Advisory, large breaking waves of 20 to 25 feet are expected. * WHERE...Northern Washington Coast and Grays Harbor County Coast zones. * WHEN...For the Coastal Flood Warning, from 7 AM Wednesday to 10 PM PST Thursday. For the High Surf Advisory, from 4 AM to 7 PM PST Thursday. * IMPACTS...Significant coastal flooding due to high tides and storm surge is expected. This is expected to lead to numerous road closures. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Shoreline erosion or damage may occur. Strong surf and sneaker waves can knock people off their feet, move driftwood and debris causing injury, and cause localized beach and coastal erosion. * ADDITIONAL DETAILS...There is high confidence in the water levels reaching moderate to major flood inundations coincident with the midday high tides, particularly in Westport and La Push. Wave activity is expected to peak on Thursday, potentially resulting in as many or more impacts than the high tide on Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Inundation above ground level refers to the height above the Mean Higher High Water (MHHW) level. Never turn your back on the ocean and keep children and pets close. Know the tides and surf forecast. Follow warning signs and respect barriers. &&