Atmospheric conditions have become unstable, especially in the coastal areas of the Kanto and Tohoku regions, due to the effects of developing low pressure systems.
The Japan Meteorological Agency is wary of storms and high waves, and is calling for careful attention to local heavy rains, lightning strikes, and gusts such as tornadoes around noon on the 26th.
According to the Japan Meteorological Agency, the atmospheric condition has become unstable due to the influence of the low pressure system moving northeastward near the Izu Islands, and rain clouds that have developed slightly mainly in the coastal areas of the Kanto region and the Pacific Ocean side of the Tohoku region are shining.
In the hour before 4 am, it rained 36 mm in heavy rain in Tomioka Town, Fukushima Prefecture.
In addition, the wind is strong mainly on the sea, and the maximum instantaneous wind speed of 19.8 meters is observed in Choshi City, Chiba Prefecture by 5 am.
The maximum wind speeds expected on the 26th are 25 meters in the Kanto region, 20 meters in the Tokai region, and 18 meters in the Tohoku region, and the Japan Meteorological Agency is calling for caution against storms and high waves.
In addition, in the Kanto and Tohoku regions, atmospheric instability is expected to continue around noon, and heavy rain may occur locally.
You need to be careful about strong gusts such as lightning strikes and tornadoes, as well as "hail".
If there are signs that a developed cumulonimbus cloud is approaching, such as a sudden cold wind, move to a sturdy building to ensure safety.