High Surf Advisory issued December 18 at 3:17PM HST until December 20 at 6:00AM HST by NWS
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU AND KAUAI AND NORTH FACING SHORES OF OAHU MOLOKAI AND MAUI... ...HIGH SURF ADVISORY IN EFFECT UNTIL 6 AM HST FRIDAY…