On the northwest Pacific, about thirty typhoon systems form every year. Of these, around eight affect southern Kyushu and Shikoku Island, and about three attack Kansai, Guanzhong, Kantou, and the North Land regions.
Especially the autumn typhoons in August and September—when summer shifts to autumn and the sun moves from north to south—the sea temperatures are warmer, storing up more energy, so the resulting destruction is much greater.
The kind of typhoon that can reach the Owari region is generally this type of autumn typhoon.
And maybe it's because the Little Ice Age is approaching—a catastrophic event that greatly affected Ming Dynasty society is said to have had ominous signs traceable to the early Jiajing period, and became obvious from the thirteenth year of Wanli (1585) onwards.
