What is happening
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI THROUGH FRIDAY AFTERNOON... ..A large, long period north-northwest swell will slowly decline through tonight. * WHAT...Surf heights of 16 to 22 feet along north-facing shores, 10 to 16 feet along west-facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu and Molokai and the north facing shores of Maui. * WHEN...Until 6 PM HST this evening. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
Official instructions
Heed all advice from ocean safety officials. When in doubt, don't go out.
