Typhoon Warling (Seyana)

Typhoon Warling was the largest and most intense tropical cyclone ever recorded, surpassing Typhoon Tip from 1979. Developing into the ninth named tropical storm of the north-west Pacific Ocean and impacting the Eastern portion of the Federated States of Micronesia on July 3, Warling strengthened into the fifth typhoon of this season and underwent extremely rapid intensification the next day, due to favourable environmental conditions.

By the time the storm reached the Northern Mariana Islands, Warling was at its peak, having sustained winds of 435 km/h (270 mph). At its peak strength, Warling was the largest tropical cyclone on record, with a wind diameter of 2,420 km (1,503 mi). The typhoon made landfall in the Kantō region of Japan on July 9th, with sustained winds being around 370 (230 mph). The Typhoon dissipated on July 15th in Kamchatka.

The Typhoon caused widespread flooding in Southern Japan, and led to over 10,000 deaths with an additional 5,000 gone missing.