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fzhw52 phfo 191400

surf zone forecast
national weather service honolulu hi
400 am hst thu oct 19 2017

400 am hst thu oct 19 2017

...high surf advisory for east facing shores...

surf along north facing shores will be 2 to 4 feet rising to 5 to 8 
feet this evening, then to 8 to 11 feet friday.

surf along west facing shores will be 1 to 3 feet rising to 3 to 5 
feet this evening, then to 5 to 8 feet friday. 

surf along south facing shores will be 2 to 3 feet through friday.

surf along east facing shores will be 6 to 9 feet through friday.

outlook through thursday october 26:
dangerous beach conditions will continue along east facing shores
through friday due to strong onshore winds, rough surf and strong
currents. conditions are expected to gradually improve over the
weekend as the trades ease and the surf trends down. a long-period
north-northwest swell is expected to peak friday, then ease into the
weekend. this will become reinforced by a larger northwest swell
sunday through early next week. heights will possibly reach advisory
levels along north and west facing shores late sunday through monday.
surf is expected to build and possibly reach advisory levels once
again over the weekend along south facing shores as a new long-period
south-southwest swell fills in. for the outlook, surf along north and
west facing shores will likely remain elevated through midweek due to
an expected active period across the northern pacific. 

surf heights are forecast heights of the face, or front, of waves. the
surf forecast is based on the significant wave height, the average
height of the one third largest waves, at the locations of the largest
breakers. some waves may be more than twice as high as the
significant wave height. expect to encounter rip currents in or near
any surf zone.


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