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.

Ida continued to slowly move westwards, and after beginning to curve north rapidly intensified into a powerful typhoon.

[3] This reading makes the storm responsible for the second-lowest atmospheric pressure ever recorded in mainland Japan, after the 1934 Muroto typhoon.

[2][1][4] After passing over Japan, Ida turned northeast and weakened, eventually becoming extratropical and dissipating near the western Aleutian Islands on September 20.

More than 2,000 people were killed in the Hiroshima Prefecture after heavy rains brought by a weakening Ida caused severe landslides.