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QuikCAST
Surf Forecast - Hawaii

5 Day Surf Forecast

Forecast Updated:
 
Tuesday, July 17, 2018 3:08 PM

Surf Scale: 3 ft = waist high, 4 ft = chest high, 5 ft = head high, 10 ft =double overhead
Swell Direction is direction swell is coming from. 90°=East, 180°=South, 270°=West, 360-0 = North

NOTE: Forecast does NOT account for enhancing bathymetry (i.e the 'reef effect') common at best breaks. For top spots with swell period 14 +secs, multiply surf size X 1.25-1.5 with peaks X 2 (or consider the stated size 'Hawaiian Scale').

Hawaiian North Shore Surf Forecast
(Valid for the North and East Shores of Oahu)
Day Trend Wind
(kts)
Details
(Swell Number, Swell Size & Period, Arrival Time and Profile)
Waves
(Set wave max face height)
Swell Direction
Wednesday
7/18
Up some E 15+ East windswell on the East Shore 5.0 ft @ 8 secs
3.5 ft 70 degrees
Thursday
7/19
Holding E 15 East windswell on the East Shore to 4.5 ft @ 9 secs later
3.5 ft 75 degrees
Friday
7/20
Down some ENE 10+ East windswell on the East Shore 3.6 ft @ 8 secs
2.5 ft 70 degrees
Saturday
7/21
Down E 10+ No swell of interest is forecast
2 ft or less ---
Sunday
7/22
Down some E 15 East windswell on the East Shore 3.4 ft @ 6-7 secs
2.0 ft 65 degrees
Extended
Outlook
Down some --- East trade wind fetch is to peak along east facing shores at 15-20 kts on Wed (7/18) extending 500 nmiles east of the Islands producing limited east windswell. That fetch is then to start fading in velocity and coverage east of the Islands by Thurs (7/19). Windswell and associated fetch fading after that.

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Surf Height Animation: Northeast Pacific - Hawaii
Wind Animations:
Northeast Pacific - Hawaii - Hawaii hires
Local Model: Surf - Wind

Hawaiian South Shore Surf Forecast
(Centered on the South Shore of Oahu)
Day Trend Wind
(kts)
Details
(Swell Number, Swell Size & Period, Arrival Time and Profile)
Waves
(Set wave max face height)
Swell Direction
Wednesday
7/18
Down some E 15+ New Zealand swell 1.0 ft @ 17 & 20 secs later
1.5 ft 198 degrees
Thursday
7/19
Up some E 15 New Zealand swell 1.4 ft @ 15 & 17-18 secs
2.0 ft 198 degrees
Friday
7/20
Down some ENE 10+ New Zealand swell fading from 1.1 ft @ 15 & 18 secs
1.5-2.0 ft 198 degrees
Saturday
7/21
Up some E 10+ 1st Pulse of Central Pacific swell building to 1.8 ft @ 17-18 secs
3.0 ft 190 degrees
Sunday
7/22
Down some E 15 1st Pulse of Central Pacific swell 1.6 ft @ 15-16 secs
2nd Pulse of Central Pacific swell 1.9 ft @ 19 secs later
2.5 ft
3.5 ft
190 degrees
182 degrees
Extended
Outlook
Holding initially --- A gale developed under New Zealand on Thurs (7/12) producing 40 ft seas aimed east. Sideband swell is in the water pushing northeast. Of more interest is that a gale started building southeast of New Zealand on Sat-Sun (7/15) with 31 ft seas aimed northeast. That gale was followed directly by a stronger system pushing north-northeast late Sun-Wed (7/18) with seas to 39 ft. but most of that energy is aimed east of Hawaii. Sideband swell is to result. Nothing else is forecast to follow.

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