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QuikCAST
Surf Forecast - Hawaii

5 Day Surf Forecast

Forecast Updated:
 
Thursday, April 15, 2021 4:27 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

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
Friday
4/16

Up slightly

NNE 5+

Northwest windswell building to 3.0 ft @ 9 secs

2.5 ft 345 degrees
Saturday
4/17

Up some

NNE 10

Northwest windswell building to 3.1 ft @ 11-12 secs later

3.5 ft 345 degrees
Sunday
4/18

Up some

E 10+

North windswell 4.0 ft @ 10-11 secs

4.0 ft 350 degrees
Monday
4/19

Down some

NE 1-5

North windswell 3.1 ft @ 9-10 secs

2.5 ft 345 degrees
Tuesday
4/20

Down

E 5+

No swell of interest forecast

2 ft or less ---
Extended
Outlook
Down --- A small system developed in the Northwestern Gulf on Wed (4/14) producing 18 ft seas aimed southeast. Maybe some small swell to result for the Islands starting Sat (4/17). Another is forecast in the Central Gulf Sat-Sun (4/18) producing 16-20 ft seas aimed southeast. More small swell possible.

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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
Friday
4/16

Down

NE 1-5 No swell of interest forecast 2 ft or less ---
Saturday
4/17

Down

NE 5+ No swell of interest forecast 2 ft or less ---
Sunday
4/18

Down

ENE 5 No swell of interest forecast 2 ft or less ---
Monday
4/19

Down

calm early No swell of interest forecast 2 ft or less ---
Tuesday
4/20

Down

NE 1-5 No swell of interest forecast 2 ft or less ---
Extended
Outlook
Down ---

No swell producing weather system are forecast in the HI swell window for the next 7 days.

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