Due to the rapidly developing low pressure system and the influence of fronts, the atmospheric condition has become unstable in western Japan, and rain clouds have developed in Kyushu and Shikoku.
After this, the atmospheric condition will become unstable in eastern Japan, and it is expected that it will be rough in northern Japan over the next two days, and the Japan Meteorological Agency is calling for caution against storms and high waves and careful attention to severe gusts such as lightning strikes and tornadoes. increase.
According to the Japan Meteorological Agency, a cyclone in the Sea of Japan is expected to develop rapidly and move northeast over a day, with a front extending from the cyclone passing through the Japanese archipelago.
Due to the low pressure and moist air flowing toward the front, the atmospheric condition becomes unstable in western Japan, rain clouds develop in Kyushu and Shikoku, and the wind is strengthening mainly in the coastal areas.
In the hour until 5 pm, it rained 36 mm on Takarajima, Toshima Village, Kagoshima Prefecture, and in Ikata Town, Ehime Prefecture, the maximum instantaneous wind speed of 25.8 meters was observed after 3 pm.
Over the next day, atmospheric conditions will become unstable in eastern and northern Japan, and there is a risk of heavy rain of 30 mm or more per hour accompanied by local lightning, especially on the Pacific side.
Furthermore, in northern Japan and Hokuriku, where low pressure is approaching, it is expected that the weather will be rough over two days.
The maximum daily wind speed is expected to be 25 meters in Hokkaido, 20 meters in Tohoku and Hokuriku, and Niigata prefecture, and the maximum instantaneous wind speed is expected to be 30 to 35 meters.
In northern Japan, the wind is strong even over two days, with maximum wind speeds of 20 to 24 meters and maximum instantaneous wind speeds of 25 to 40 meters.
Northern Japan, Hokuriku, and Niigata prefectures are expected to continue to suffer great damage over the next two days.
Furthermore, since cold air flows into the sky after the front has passed, heavy snow may occur from 1 to 2 days along the mountains in northern Japan.
The Japan Meteorological Agency is wary of storms and high waves, and is calling for careful attention to heavy local rains, lightning strikes, and tornadoes.
If there are signs that a developed cumulonimbus cloud is approaching, such as a sudden cold wind blowing or the sound of thunder, try to ensure safety by moving to a sturdy building.