AREAS AFFECTED : KAUAI SOUTHWEST; WAIANAE COAST; OAHU NORTH SHORE; MAUI WINDWARD WEST; KAUAI NORTH; MOLOKAI WINDWARD; MOLOKAI NORTH; MOLOKAI WEST; MAUI CENTRAL VALLEY NORTH; WINDWARD HALEAKALA; BIG ISLAND EAST; BIG ISLAND NORTH
...HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THURSDAY FOR
EXPOSED NORTH AND WEST FACING SHORES...
...MINOR COASTAL FLOODING DURING HIGH TIDE THIS WEEK FOR LOW
LYING COASTAL AREAS OF ALL ISLANDS...
.A medium to large north-northwest medium period swell will
continue to move across the Hawaiian Islands through Thursday
increasing surf heights to near advisory thresholds along exposed
north and west facing shores of Niihau, Kauai, Oahu, Molokai,
including north facing shores of Maui and the Big Island. Surf
heights will likely fall below advisory thresholds by Thursday
night as the swell energy decreases.
Peak monthly high tides combined with water levels that are
running higher than predicted will lead to minor flooding along
the shoreline and in low-lying coastal areas. Coastal flooding is
possible around the daily peak tide, which will be during the
early morning hours.
* WHAT...For the High Surf Advisory, large breaking waves of 10 to
15 feet along north facing shores and 8 to 12 feet along west
facing shores. For the Coastal Flood Statement, isolated minor
coastal flooding.
* WHERE...For the High Surf Advisory, north and west facing
shores of Niihau, Kauai, Oahu, Molokai, including north facing
shores of Maui and the Big Island. For the Coastal Flood
Statement, low lying coastal areas of Niihau, Kauai, Oahu,
Molokai, Maui, and the Big Island.
* WHEN...For the High Surf Advisory, until 6 PM HST Thursday.
For the Coastal Flood Statement, through late Thursday night.
* IMPACTS...Flooding of beaches that are normally dry, minor
coastal erosion, and saltwater inundation. Moderate. Strong
breaking waves and strong currents will make swimming dangerous.