HONOLULU, Hawaii (HawaiiNewsNow) - The largest swell so far this winter surf season brought waves into the 40 to 50-foot range Saturday for some north facing shores, with surf expected to remain dangerously high as another swell rolls in.
The National Weather Service has extended a high surf warning until 6 a.m. Tuesday for the north and west shores of Niihau, Kauai, Oahu and Molokai, and the north shores of Maui.
Surf on north shores will be in the 20 to 30 foot face range Sunday, with west shores at 15 to 20 feet.
Waves will likely diminish below warning levels Sunday afternoon, but will rise again to 30 to 45 feet along north shores of Kauai Sunday night into Monday morning.
The large swell will then move on to Oahu, Molokai and Maui through the day Monday, producing another round of warning level surf.
A high surf advisory also remains in effect for the north and west shores of the Big Island until 6 a.m. Tuesday. Surf is forecast at 12 to 16 feet for north shores, and 7 to 10 feet for west-facing shores, declining late Sunday, and then rising again on Monday.
Waves this large will occasionally sweep across normally-dry beach areas, with very strong breaking waves and strong long shore and rip currents. Anyone entering the water faces significant injury or death.
Beach goers should avoid any areas where there is wet sand or rocks.
This story will be updated.