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surf zone forecast
national weather service honolulu hi
401 am hst sat oct 21 2017

hiz005>011-220315-
oahu-
401 am hst sat oct 21 2017

surf along north facing shores will be 3 to 6 feet through tonight, 
increasing to 6 to 10 feet sunday morning, and 10 to 14 feet late
sunday. 

surf along west facing shores will be 2 to 4 feet through tonight, 
increasing to 3 to 6 feet sunday morning, and 6 to 10 feet late
sunday. 

surf along south facing shores will be 2 to 4 feet today, increasing
to 3 to 6 feet on sunday. 

surf along east facing shores will be 5 to 7 feet today and 2 to 4 
feet on sunday. 

outlook through saturday october 28:
a northwest swell arriving sunday will peak monday with surf near the
advisory level along north facing shores. a shorter-period but larger
northwest swell is expected to produce advisory-level surf along
north, and possibly west, facing shores tuesday and wednesday. an even
larger long-period northwest swell is possible toward the end of the
week. a long-period south swell will produce surf near the advisory-
level along south facing shores sunday and monday. a small long period
west swell is possible next week, with small southeast swell
potentially increasing by mid-week. 

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.

$$