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surf zone forecast
national weather service honolulu hi
335 am hst wed aug 21 2019

hiz005>011-220245-
oahu-
335 am hst wed aug 21 2019

...high surf advisory for south facing shores...

surf along south facing shores will be 6 to 10 feet today, lowering 
to 5 to 8 feet tonight, then lowering to 4 to 6 feet thursday.

surf along west facing shores will be 4 to 7 feet today, lowering to 
3 to 5 feet tonight, then lowering to 2 to 4 feet thursday.

surf along east facing shores will be 2 to 4 feet today and tonight,
lowering to 2 to 3 feet thursday. 

surf along north facing shores will be 1 to 3 feet today, rising to 2
to 4 feet tonight and thursday.

outlook through wednesday august 28:
the current long-period south swell will hold steady today, then 
gradually lower tonight into the weekend. a series of small long- 
period south and southwest swells will move through sunday through 
early next week. a larger southwest swell is possible tuesday through 
the middle of next week. small northwest swells will linger over the 
next few days providing some out of season surf along north facing 
shores. strengthening trade winds will give a boost in short period 
choppy surf along east facing shores through tonight and again over 
the weekend.

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.

$$