WHHW40 PHFO 211307

CFWHFO



Coastal Hazard Message

National Weather Service Honolulu HI

307 AM HST Sat Mar 21 2026



...HIGH SURF ADVISORY FOR NORTH FACING SHORES OF NIIHAU KAUAI AND

OAHU...



.A northerly swell is building in and will create large surf for

north facing shores peaking Saturday afternoon and then slowly

declining Saturday night.



HIZ001-007-009-029-030-035-220215-

/O.CON.PHFO.SU.Y.0021.260321T1600Z-260322T1600Z/

Niihau-Oahu North Shore-Olomana-Kauai North-Kauai East-

Koolau Windward-

307 AM HST Sat Mar 21 2026



...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING TO

6 AM HST SUNDAY...



* WHAT...Large breaking waves of 12 to 16 feet.



* WHERE...North shores of Niihau, Kauai, and Oahu.



* WHEN...From 6 AM this morning to 6 AM HST Sunday.



* IMPACTS...Moderate. Strong breaking waves and strong currents 

  will make swimming dangerous.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Heed all advice from ocean safety officials. When in doubt, don't

go out.



&&



$$