Hurricane Iwa produced estimated gusts reaching across
Kauai and
Oahu. The acceleration of the hurricane concentrated the energy of its swells, resulting in high waves and
storm surge across the Hawaiian Islands, though primarily near the path of the center. It is estimated the storm surge reached eight feet (two meters) on the south coast of Kauai. The heaviest rainfall reported from the island chain was from the Intake Wainiha 1086 site, where was measured. Possible tornadoes were reported in association with a rain squall in Oahu. and waves on southern Kauai surpassed in height. During the worst of the storm, 5,800 people were evacuated from shoreline areas of
Kauai to temporary shelters. Strong waves sank or grounded several small vessels on the southwestern coast of Kauai, Highway 56 on the east side of the island was obstructed by fallen telephone poles, forcing residents to drive on the unpaved, red dirt cane roads usually reserved for hauling
sugar cane from the fields. Rising waters washed out multiple roads near the coastline. The strong winds destroyed nearly all
papaya and
banyan trees on the island. The hurricane destroyed or greatly damaged 1,907 homes on the island and caused minor damage to 2,983 others, leaving one-eighth of the island's homes unlivable. on November 24 Rough seas killed a person on the
USS Goldsborough in
Pearl Harbor when the seaman hit a
stanchion, Rough waves destroyed four and damaged two
deep-water communication cables between Oahu and Kauai. Additionally, 418 buildings, including 30 businesses, were destroyed on Oahu. The
last female
Kauaʻi ʻōʻō (
Moho braccatus) was lost in the storm. Her mate was recorded singing in solitary until he went silent and presumably died in 1987, marking the extinction of their species. ==Aftermath==