TOKYO, Sep 30 (News On Japan) - Japan's weather is expected to change suddenly from October 1st, with severe conditions such as thunderstorms, gusty winds, and hail likely to develop from Kanto through Hokkaido, even though much of the country saw clear autumn skies on Tuesday.
While warm air is flowing near the ground, colder-than-usual air for this time of year is moving in aloft, creating a large temperature difference that will destabilize the atmosphere and trigger strong convective activity. Thunderclouds are particularly likely in areas from Kanto to Hokkaido, with a higher risk in the afternoon than in the morning. Under these clouds, there is also the possibility of tornadoes, violent gusts, and hail. Residents are advised to take shelter in sturdy buildings if thunderstorms occur.
Meanwhile, regions covered by a high-pressure system such as Kyushu, Chugoku, and Shikoku are expected to see continued sunny skies tomorrow with strong sunlight. Even in October, ultraviolet rays remain intense, so precautions against unexpected sunburn are still necessary.
Cooler air will lower temperatures in Kanto and Tohoku compared with today, bringing conditions closer to seasonal norms at around 20°C during the day, making autumn clothing more suitable. In contrast, western Japan will see midsummer-like heat, with some areas exceeding 30°C, where short sleeves may still be comfortable.
Source: TBS
