Typhoon Ida (1945) · Lablypedia

In a nutshell

Typhoon Ida, known in Japan as Makurazaki Typhoon (枕崎台風), was a powerful and very deadly typhoon that formed over the western Pacific Ocean and struck Japan in September 1945, shortly after the Japanese surrender in World War II, causing over 2,000 deaths. The storm struck parts of Kyushu and Ryukyu which had already been ravaged by the war and compounded the effects of the atomic bombing of Hiroshima, which had occurred only one month prior, resulting in further devastation to the already destroyed city. The typhoon likely had much higher wind speeds than were recorded at the time, with current estimates of the storm's minimum pressure as low as 917 millibars, though meteorologists are uncertain of the storm's true intensity. The typhoon remains one of the deadliest in Japanese history and is one of only a few storms to be known by a separate name in Japanese.

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Meteorological history

A tropical depression formed in the West Pacific on September 10 and intensified before being designated as Typhoon Ida. Ida continued to slowly move westwards, and after beginning to curve north rapidly intensified into a powerful typhoon. The storm made landfall near Makurazaki in Kagoshima Prefecture on the Japanese mainland on September 17. Ida was at the time the strongest typhoon to hit Kyushu on record, with a minimum sea-level pressure of 916.1 hPa (27.05 inHg) and a maximum wind gust of 62.7 metres per second (140 mph), which was recorded at a weather station in Makurazaki. This reading makes the storm responsible for the second-lowest atmospheric pressure ever recorded in mainland Japan, after the 1934 Muroto typhoon. After passing over Japan, Ida turned northeast and weakened, eventually becoming extratropical and dissipating near the western Aleutian Islands on September 20.

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