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QuikCAST
Surf Forecast - Hawaii

5 Day Surf Forecast

Forecast Updated:
 
Monday, September 21, 2020 4:47 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
Tuesday
9/22

Down

E 10+ No swell of interest forecast 2 ft or less ---
Wednesday
9/23

Up some

E 15

Possible Gulf swell building to 2.4 ft @ 15-16 secs later

4.0 ft 338 degrees
Thursday
9/24

Up some

E 15

Gulf swell 4.0 ft @ 14 secs

5.5 ft 345 degrees
Friday
9/25

Down some

E 10+

Gulf swell fading from 3.2 ft @ 11-12 secs early

3.5 ft 345 degrees
Saturday
9/26

Down some

E 10

Gulf swell fading from 2.9 ft @ 10-11 secs early

2.5-3.0 ft 345 degrees
Extended
Outlook
Up some maybe ---

A gale is forming in the Western Gulf on Mon-Thurs (9/24) producing 28 ft seas aimed southeast. Possible swell arrival on Wed (9/23).And another is to follow in the far Northeastern Gulf Fri-Sat (9/26) producing up to 30 ft seas aimed east but likely well east of the Hawaii swell window. But there's hints of hope one the dateline a week out.

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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
Tuesday
9/22

Holding

E 10+

Tasman Sea swell 1.6 ft @ 16-17 secs mid-day

2.5 ft 220 degrees
Wednesday
9/23

Up slightly

E 15

Tasman Sea swell fading from 1.4 ft @ 16 secs

2.0-2.5 ft 220 degrees
Thursday
9/24

Holding

E 15

Tasman Sea swell fading from 1.2 ft @ 15-16 secs

2.0 ft 220 degrees
Friday
9/25

Up slightly

E 10+

Background swell 1.4 ft @ 17 secs

2.0-2.5 ft 200 degrees
Saturday
9/26

Holding

E 10

Fresh New Zealand swell building to 1.2 ft @ 19 secs late
Background swell building to 1.6 ft @ 15 secs

2.0 ft
2.0-2.5 ft
198 degrees
200 degrees
Extended
Outlook
Up some maybe ---

Down south on Mon (9/14) a small gale pushed up into the Tasman Sea producing 32 ft seas aimed northeast. Swell arrival on Mon (9/21). A larger gale is traversing the South Pacific Sun-Tues (9/22) with up to 40 ft seas aimed east. Possible swell radiating northeast arriving late Sat (9/26).

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