What is japan tornado?

As an AI language model, I don't have up-to-date information on the latest Japan tornado. However, in general, Japan is not commonly known for tornadoes. The country does experience occasional tornadoes, but they are usually weaker than tornadoes in other parts of the world. Most tornadoes in Japan occur during the spring and early summer months, with the peak season being in May. Tornadoes in Japan can be caused by the collision of warm and cold air masses, typhoons, and atmospheric disturbances created by steep mountain ranges.