National Weather Service Portland Issues High Surf Warning for the South Washington Coast: Breakers of 30 to 35 Feet Through Noon on November 14, With an Extreme Sneaker Wave Threat on Friday Evening
The National Weather Service office in Portland has issued a High Surf Warning for the South Washington Coast, including the Ocean Park, Surfside and Long Beach areas, upgrading the advisory issued earlier in the day; a Coastal Flood Advisory was also in effect until 4 p.m.
Forecasters warn that breaking waves could reach 30 to 35 feet, creating hazardous conditions along beaches, dunes, jetties and other exposed coastal locations.
The High Surf Warning runs through noon on November 14. The Coastal Flood Advisory was in effect from noon to 4 in the afternoon on November 13.
In its coastal hazard message issued at 12:43 in the morning on Friday, the weather service said the sneaker wave threat is extreme, with the greatest danger expected Friday evening and Friday night. Sneaker waves can surge much farther up a beach after several minutes of apparently calmer surf.
For coastal flooding, the weather service expects minor tidal overflow in low lying locations, with floodwater potentially about one foot above ground level in susceptible locations. The Toke Point tide gauge near Willapa Bay is forecast to reach approximately 11.2 feet during Friday afternoon high tide.
Source: National Weather Service Portland
Published by GSM · USA (original Chinese edition)
Photo: 图：华盛顿州南部海岸失望角一带的大浪。作者与授权：维基共享资源，CC BY-SA 4.0。 / Photo: Large waves at Cape Disappointment on the south Washington coast. Credit: via Wikimedia Commons, CC BY-SA 4.0.
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