Kanto Koshin became extremely hot on the 9th, but due to the effects of the cold air in the sky, the atmospheric conditions became unstable over the 10th, and there is a risk of extremely heavy rain, especially in the northeastern part of the Kanto region.
Be careful of low land inundation, steep river flooding, as well as lightning strikes, gusts, and "hail".
According to the Japan Meteorological Agency, Kanto Koshin has many sunny days during the day, and the maximum temperature is 34.7 degrees in Kumagaya City, Saitama Prefecture, 33.9 degrees in Nagano City, and 32 degrees in central Tokyo. rice field.
On the other hand, due to the influence of cold air flowing in the sky, rain clouds developed from the Tokai region are flowing into Nagano prefecture and other prefectures.
On the 10th, due to the rise in daytime temperature, the atmospheric conditions are expected to become unstable around the afternoon, and rain clouds are expected to develop locally.
In the southern part of the Kanto region and Koshin, it rains 30 mm per hour, and in the northeastern part of the Kanto region, it may rain 50 mm per hour.
The Japan Meteorological Agency calls for careful attention to low land inundation, sudden river flooding, and sediment disasters.
You need to be careful about lightning strikes, gusts, and hail.