Waves of up 14 feet are expected today, prompting a high surf advisory for much of the state.
The National Weather Service advisory remains in effect until 6 a.m. Thursday and calls for wave heights between 8-to-12-feet today with occasional 14-foot sets. Wave heights are expected to diminish to 6-to-9 feet on Thursday.
The advisory covers nearly all Kauai and Niihau shores, southern and Waianae coast shores of Oahu, leeward shores of Maui, and all of Molokai, Lanai and Hawaii island, according to the weather service.
Forecasters warn of strong shore breaks, and rip currents that will make swimming difficult and dangerous. Beachgoers are urged to listen to ocean safety officials and to be cautious.