A combination of big north-northwest swells are expected to arrive this weekend, prompting the National Weather Service in Honolulu to issue a High Surf Advisory for the north and west shores of Kauai, Niihau, Oahu and Molokai and the north shores of Maui and the Big Island of Hawaii.
The advisory is in effect through 6 p.m. Sunday.
Forecasters said the swells are coming from a series of low pressure systems in the North Pacific, resulting in a combination of swells from the north and northwest. The mixed direction and surf heights are expected to create chaotic and unpredictable surf conditions through the weekend.
Waves of 15 to 20 feet are possible along north facing shores and 8 to 12 feet along west facing shores.
Surf is expected to build quickly Saturday and reach dangerous levels by afternoon. The surf is forecast to peak overnight Saturday into Sunday morning, decreasing slowly into Sunday afternoon.
Beachgoers can expect strong breaking waves and shore break, along with strong long shore and rip currents that will make swimming difficult and dangerous. Beachgoers, swimmers and surfers should heed all advice from ocean safety officials and exercise caution.
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