The National Weather Service issued a high surf advisory for most isles until 6 p.m. this evening.
The high surf advisory is in effect for north- and west-facing shores of Niihau, Kauai, Oahu and Molokai, with waves and for the north-facing shores of Maui and Hawaii island, with waves of 10 to 18 feet. For the west-facing shores of Oahu, waves are expected to reach 7 to 12 feet.
A northwest swell will continue to decline gradually today. Expect strong, breaking waves, shore break and strong rip currents, making swimming difficult and dangerous, weather officials said.
A small craft advisory for windward Maui and Hawaii island is also in effect until 6 p.m. today.