And Here We Go - A Massive El Nino Is Developing! - Video HERE (7/12/26)

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Stormsurf Mobile App Create Your Own Surf Forecast Swell Calculator Swell Decay Tables Sea Height Tables Swell Category Table Convert from GMT:   0Z 1Z 2Z 3Z 4Z 5Z 6Z 7Z 8Z 9Z 10Z 11Z 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z  to timezone: IDLE/NZST AEDT GST/AEST --> JST/AWDT CCT/AWST WAST/CXT --> MSD BT/MSK EET/CEST CET/SWT GMT/UTC WAT AT ADT AST/EDT EST/CDT CST/MDT MST/PDT PST/YDT YST/HADT AHST/HAST NT IDLW 7:00 ---

QuikCAST Surf Forecast - Hawaii 5 Day Surf Forecast Forecast Updated:   Thursday, July 16, 2026 1:40 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 7/17 Down E 15 No swell of interest forecast 2 ft or less --- Saturday 7/18 Down E 15+ No swell of interest forecast 2 ft or less --- Sunday 7/19 Down E 15 No swell of interest forecast 2 ft or less --- Monday 7/20 Down E 10+ No swell of interest forecast 2 ft or less --- Tuesday 7/21 Down ENE 15 No swell of interest forecast 2 ft or less --- Extended Outlook Down --- No swell producing weather systems of interest are forecast. --- --- 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 7/17 Up some maybe ENE 15 Background swell 1.7 ft @ 16-17 secs later 2.5-3.0 ft 205 degrees Saturday 7/18 Down some ENE 15+ Background swell 1.0 ft @ 13-15 secs 1.5 ft 200 degrees Sunday 7/19 Down some ENE 15 Background swell 1.2 ft @ 13-14 secs early 1.5 ft 190 degrees Monday 7/20 Up some ENE 10 Central S. Pacific swell building to 2.4 ft @ 15-16 secs later 3.5 ft 180 degrees Tuesday 7/21 Down some ENE 10+ Central S. Pacific swell 2.7 ft @ 14-15 secs early 3.5-4.0 ft 182 degrees Extended Outlook Up maybe --- A cutoff gale developed over the Central S. Pacific Mon-Tues (7/14) with 32 ft seas aimed mostly north-northwest. Swell arrival on Mon (7/20). A storm was pushing well under New Zealand Thurs-Fri (7/17) with up to 52 ft seas aimed east, then fading. Secondary swell is to build from its remnants lifting northeast Sat-Mon (7/20) with seas to 37 ft aimed northeast. --- --- 20423

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