...DANGEROUS HIGH SURF AND BEACH EROSION THROUGH TONIGHT...
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...
* IMPACTS...Ocean water will rush much further up beaches and
jetties than normal. Structures and roads located immediately at
beach level will be inundated by waves and damaged by debris.
Many beaches, jetties, and rocky out croppings will be covered
by deep water. Several state parks have been closed as of this
afternoon. Large logs can be pushed further up beaches,
resulting in damage to structures and posing a significant risk
to beach-goers. Beach erosion is possible.
* HIGH SURF...Offshore buoys reported significant ocean swell
heights up to 36 feet this morning with a dominant wave period
of 17 seconds. Significant wave heights early this afternoon
were still near 30 feet. The swell will slowly subside late this
afternoon through tonight, but remain above 25 feet through late
evening. The swell will produce 35 to 45 foot breaking waves
along the beaches through this evening. Highest potential wave
heights through this evening could reach 50 to 60 feet.
* COASTAL FLOODING...The extremely large surf combined with a
higher than normal tide this afternoon will likely result in
flooding of low lying areas along the coast. Locations
particularly vulnerable are the Willapa Bay and vicinity,
Seaside, Nehalem, Tillamook and Florence. Early this afternoon
tidal flooding was noted in Nehalem.