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Flood Advisory for Oregon Coast / Washington Coast Over Weekend

Published 11/05/21 at 6:39 PM PDT
By Oregon Coast Beach Connection staff

Flood Advisory for Oregon Coast / Washington Coast Over Weekend

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(Manzanita, Oregon) – Look for possible flooding along the north Oregon coast and south Washington coast this weekend, as rather large swells offshore and king tides combine for some especially wet conditions. (Above: flooding at Seaside Airport, courtesy Angi Wildt Gallery).

It should result in some decent storm watching weather, however, with some large waves smacking against the regular spots, such as Washington's Cape Disappointment, Depoe Bay or Shore Acres near Coos Bay.

The National Weather Service (NWS) in Portland issued a coastal flood advisory for the areas of Lincoln City through to about Raymond, Washington, in effect from 1 p.m. to 5 p.m. Saturday.

See Oregon Coast Weather - Washington Coast Weather

The NWS offices in Portland and Medford have also issued either hazardous seas warnings or small craft warnings for mariners, citing large swells and gales which are even heavier on the southern Oregon coast.

“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,” the NWS said.

The advisory means that some tidal overflow is expected. Look for some roads to get hit with large amounts of water on both the Oregon and Washington coast.

“The expected water level at Astoria is expected to peak near 11.2 ft around 3 PM Saturday,” the NWS said. “Minor flooding may affect Highway 101 near Seaside, Nehalem, and/or Tillamook. High water may also affect parts of Frazier Rd, Miami Foley Rd at milepost 1, and the intersection near Alderbrook and Possetti road. Flooding is possible in the town of Rockaway Beach.”

Watch the storms live at Oregon Coast Sky Cams - Web Cams, Weather Cams

Wave height out at sea and gale conditions are causing the NWS to send out warnings or advisories for mariners, which includes a hazardous seas warning on Saturday and Sunday.

Steep swells at around 15 feet and a timing of 12 seconds is certainly dangerous for offshore boaters, but it could translate into higher wave surges for the king tides.

However, the NWS offices have not issued any beach alerts regarding this. Still, during king tide events it is imperative the public stay off the beaches as these are extra dangerous conditions no matter what offshore swells are adding to the mix.

“Recreational boaters should remain in port,” the NWS said. “Commercial vessels should prepare for very steep seas and consider remaining in port until conditions improve.”

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Shore Acres, courtesy Manuela Durson


Courtesy Seaside Aquarium

Westport, Washngton, courtesy visitors center


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