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QuikCAST
Surf Forecast - Hawaii

5 Day Surf Forecast

Forecast Updated:
 
Sunday, May 20, 2018 1:36 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
Monday
5/21
Down ENE 15 No swell of interest forecast
2 ft or less ---
Tuesday
5/22
Down ENE 15+ No swell of interest forecast
2 ft or less ---
Wednesday
5/23
Up slightly ENE 15 Generic northwest windswell 2.8 ft @ 12 secs
3.0-3.5 ft 330 degrees
Thursday
5/24
Down some ENE 15+ Generic northwest windswell fading from 2.0 ft @ 10-11 secs
2.0 ft 330 degrees
Friday
5/25
Down ENE 15 No swell of interest forecast
2 ft or less ---
Extended
Outlook
Down --- A series of weak low pressure systems to track east across the North Pacific but with seas never exceeding 18 ft. At best weak background windswell to result.

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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
Monday
5/21
Down some ENE 15 New Zealand swell fading from 1.6 ft @ 15 secs early
2.0-2.5 ft 198 degrees
Tuesday
5/22
Down some ENE 15+ New Zealand swell fading from 1.1 ft @ 14 secs
1.5 ft 198 degrees
Wednesday
5/23
Up some ENE 15 Tasman Sea swell building to 1.2 ft @ 19-20 secs later
2.0-2.5 ft 218 degrees
Thursday
5/24
Up some ENE 15+ Tasman Sea swell building to 1.6 ft @ 17-18 secs later
2.5-3.0 ft 218 degrees
Friday
5/25
Down some ENE 15 Tasman Sea swell fading from 1.6 ft @ 16-17 secs later
2.5 ft 218 degrees
Extended
Outlook
Up some --- A long lasting gale developed under New Zealand on Sat-Sun (5/13) with seas to 39 ft aimed east-northeast. That system redeveloped in the Central South Pacific Mon-Wed (5/16) with seas to 45 ft aimed northeast over a tiny area. Swell from this is already hitting Hawaii. Another system tracked into the Tasman Sea Wed-Thurs (5/17) with up to 38 ft seas. Possible sideband filtered swell to eventually reach Hawaii. And more 3 more similiar systems are forecast in the Tasman Sea, possibly producing a long run of filtered swell.

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