Topic summary

Typhoon Forrest

Typhoon Forrest

Typhoon Forrest, known as Typhoon Ising by PAGASA, was the fifth-most intense tropical cyclone on record and the fastest-deepening tropical cyclone worldwide. Its minimum barometric pressure dropped 100mbar (3.0inHg) from September 22 to September 23, in less than a day. Forrest formed from a tropical disturbance far from land in the western Pacific Ocean. On September20, the system was classified as a tropical storm, and thereafter began to intensify. The next day, Forrest reached typhoon status, and the intensification process accelerated. The storm prudently strengthened on September22, and the following morning, attained peak intensity following a pressure drop of 100mbar (3.0inHg) in slightly less than 24 hours. Thereafter, Forrest began to weaken slowly as it moved northwest. Approaching Japan, Super Typhoon Forrest first hit Okinawa on September27. Nearby, a tornado hit Inza Island, destroying 26 homes and injuring 26people. Forrest then moved north, striking the Japanese archipelago before transitioning into an extratropical cyclone on September28, before eventually dissipating on October4 out at sea.

The torrential rainfall caused by the typhoon triggered deadly landslides and flooding across Japan. In all, the typhoon killed at least 21people, left 17listed as missing, and injured 86. Forrest flooded 46,000homes in muddy water, over 100dwellings were destroyed, and 2,560people were rendered as homeless. Seven flights were called off and 27,000people were stranded. In addition, 67 bridges and 818 roads were damaged. Total damages were estimated to be at US$339million.