The Central Pacific Hurricane Center (CPHC) failed to issue tropical cyclone warnings and watches 24 hours in advance.
[1] Upon its formation, the depression had a ragged area of convection, and the National Hurricane Center anticipated minimal strengthening over the subsequent few days.
[2][3][4] On September 6, the depression crossed 140° W, entering the area of warning responsibility of the Central Pacific Hurricane Center (CPHC).
On September 8, the CPHC upgraded the depression to tropical storm status, giving it the name Iniki, which is Hawaiian for a sharp and piercing wind.
On September 9, Iniki strengthened into a hurricane, and the next day it passed about 300 miles (480 km) south of Ka Lae, the southernmost point of the Big Island of Hawaii.
On September 10, a reconnaissance aircraft flew into Iniki, observing sustained winds of 115 mph (185 km/h), which is a major hurricane, or a Category 3 on the Saffir-Simpson scale.
Iniki weakened slightly after its peak, and its eye made landfall on the southern coast of Kauai near Waimea with winds of 140 mph (230 km/h), making it the strongest hurricane on record to strike Hawaii.
That day, Iniki transitioned into an extratropical cyclone as it integrated with an approaching cold front about halfway between Hawaii and Alaska.
For several days before the disaster, the CPHC and the news media forecast Iniki to remain well south of the island chain.
[4] Early on September 11, less than 24 hours before Iniki made landfall, the CPHC issued a hurricane watch for Kauaʻi, Niihau, and the northwestern Hawaiian islands to the French Frigate Shoals.
Had it hit there, Iniki, along with Hurricane Andrew and Typhoon Omar, would have struck each of the three National Weather Service offices responsible for tropical cyclone warnings within a two-month period.
[4] Based on the island's damage patterns, meteorologist Ted Fujita estimated there were as many as 26 microbursts, sudden downdrafts of wind capable of reaching 200 mph (320 km/h).
[16] In addition to its strong winds, Iniki lashed the southern Kauaʻi coastline with a 4 to 6 m (13 to 20 ft) storm surge, or rise in water.
[18] Hurricane Iniki's making landfall during daylight hours, combined with the popularity of camcorders, led many Kauaʻi residents to record much of the damage as it occurred.
The winds destroyed tender tropical plants like bananas and papayas and uprooted or damaged fruit and nut trees.
[4] Among those on Kauaʻi was filmmaker Steven Spielberg, who was preparing for the final day of on-location shooting of the film Jurassic Park.
[21][22] According to Spielberg, "every single structure was in shambles; roofs and walls were torn away; telephone poles and trees were down as far as the eye could see."
[21] East of the hurricane's landfall, Oʻahu received tropical storm-force winds during Iniki's passage along its southwestern coast, with an island-wide peak gust of 82 mph (132 km/h) in Waianae.
[4] Prolonged periods of high waves severely eroded and damaged the southwestern coast of Oʻahu, with the areas most affected being Barbers Point through Kaʻena.
[1] High swells affected the southwestern coasts of Maui and the Big Island, which damaged boats, harbors, and coastal structures.
[25] Immediately after the storm, many were relieved to have survived the worst of the hurricane; their complacency turned to apprehensiveness due to lack of information, as every radio station was out and no news was available for several days.
In addition, entertainers from all of Hawaiʻi, including Graham Nash (who owns a home on the north shore of Kauaʻi) and the Honolulu Symphony, gave free concerts for the victims.
[18] Three days after Iniki struck Hawaii, the NOAA Assistant Administrator for Weather Services directed that a disaster survey team investigate the warnings and responsiveness to the hurricane.
A group from the Army Corps of Engineers, who experienced the looting during Hurricane Andrew just weeks before, were surprised at the overall calmness and lack of violence on the island.
Kauaʻi citizens remained hopeful for monetary aid from the government or insurance companies, but after six months they felt annoyed by the lack of help.
[1] Amateur radio proved extremely helpful during the three weeks after the storm, with volunteers coming from neighboring islands as well as from around the Pacific to assist in the recovery.
To combat this, Governor John D. Waihee III enacted the Hurricane Relief Fund in 1993 to help unprotected Hawaiʻi residents.
[37] Due to the storm's impact, the World Meteorological Organization retired the name Iniki after the 1992 season; it will never again be used for a Central Pacific tropical cyclone.