NORTH SHORE, OAHU (HawaiiNewsNow) - The National Weather Service has extended a High Surf Advisory until 6 p.m. Sunday as a new northwest swell arrives in the islands.
The advisory covers the north and west shores of Niihau, Kauai, Oahu and Molokai, and the north shores of Maui and the Big Island.
Surf is expected to rise to 12 to 18 feet overnight and 15 to 20 feet for the north and west shores of Niihau and Kauai and the north shores of Oahu, Molokai and Maui. West shores will rise to 8 to 12 feet overnight and 10 to 15 feet Sunday. North shores of the Big Island will have surf of 10 to 15 feet.
Beachgoers, swimmers and surfers should heed all advice from ocean safety lifeguards and exercise caution. Strong breaking waves and shorebreak, and strong longshore and rip currents will make swimming difficult and dangerous.