HONOLULU (HawaiiNewsNow) - A northwest swell and westerly winds will produce rough surf along most north and west shores of the Hawaiian islands, according to the National Weather Service. A High Surf Advisory is in effect until 6 a.m. Sunday for north- and west-facing shores of Kauai, Oahu, Molokai and Niihau, and for north-facing shores of Maui.
Surf – which will rise Thursday and peak Friday -- is expected to reach between 12 to 16 feet along north shores, and 8 to 12 feet along west shores.
Forecasters said strong breaking waves, shore break and strong longshore and rip currents will make swimming difficult and dangerous. Beachgoers should heed all advice given by Ocean Safety officials.