...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... ...HIGH SURF WARNING FOR WEST FACING SHORES OF THE BIG ISLAND... ...HIGH SURF ADVISORY FOR NORTH FACING SHORES OF THE BIG ISLAND... .An extended period of hazardous surf and beach conditions will persist into Monday along exposed north and west facing shores due to an extra large northwest swell (315-330 degrees). This swell will peak around sunset and then gradually ease tonight through Monday. * WHAT...Surf of 40 to 50 feet along north facing shores of Niihau, Kauai, Oahu, Molokai and Maui. Surf of 25 to 30 feet along west facing shores of Niihau, Kauai, Oahu, and Molokai. Surf of 8 to 12 feet along west facing shores of the Big Island. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai, north facing shores of Maui, and west facing shores of the Big Island. * WHEN...Until 6 AM HST Monday, with a peak expected late this afternoon to sunset. The best chance for coastal impacts to properties and roadways will be during the peak daily high tides during the early morning hours. * IMPACTS...Very High...Expect ocean water surging and sweeping across beaches, coastal benches, and lava flows creating the potential for impacts to coastal properties and infrastructure, including roadways. Powerful longshore and rip currents will be present at most beaches. Large breaking waves and strong currents may impact harbor entrances and channels causing challenging boat handling.

...HIGH SURF WARNING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... ...HIGH SURF WARNING FOR WEST FACING SHORES OF THE BIG ISLAND... ...HIGH SURF ADVISORY FOR NORTH FACING SHORES OF THE BIG ISLAND... .An extended period of hazardous surf and beach conditions will persist into Monday along exposed north and west facing shores due to an extra large northwest swell (315-330 degrees). This swell will peak around sunset and then gradually ease tonight through Monday. * WHAT...Surf of 14 to 18 feet. * WHERE...North facing shores of the Big Island. * WHEN...Until 6 AM HST Monday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.