On the 2nd, the temperature has risen over a wide area from western Japan to northern Japan, and there are places where it has already become a hot day of 35 degrees Celsius or higher.
Since there is a high risk of heat stroke, please take measures such as frequent breaks and hydration.
In the afternoon, there is a risk of heavy thunderstorms in various places, so you need to be careful about flooding of low land and sudden flooding of rivers.
According to the Japan Meteorological Agency, warm air is flowing in from the south of Japan on the 2nd, so the temperature is rising in various places from the morning.
The maximum temperature until 11:30 am is 35.7 degrees in Niigata city, 35.5 degrees in Yonago city in Tottori prefecture and Miyazu city in Kyoto prefecture, 35.1 degrees in Fukushima city in Mitoyo city, Kagawa prefecture, etc. The heat is harsh, with 34.9 degrees in the city, 33.9 degrees in Fukushima, and 33.1 degrees in central Tokyo.
In the afternoon, the temperature rose further, with a maximum temperature of 37 degrees in Fukui, 36 degrees in Tottori, Kyoto, Niigata, Kofu, and Yamagata, and 35 in Takamatsu, Osaka, Nagoya, Nagano, and Kanazawa. In addition to the expected hot days, it is expected to be 34 degrees in Kumamoto City and Kumagaya City, Saitama Prefecture, and 33 degrees in Asahikawa City in Hokkaido and central Tokyo.
As the humidity is high and the risk of heat stroke is expected to be extremely high, "heat stroke warning alerts" have been issued over a wide area from Tohoku to West Japan.
Avoid going out as much as possible, and be wary of heat stroke by diligently hydrating, using the air conditioner indoors, and removing the mask when there is a sufficient distance from people outdoors.
Multiple tropical cyclones and atmospheric instability to the south of Japan
On the other hand, warm and moist air is flowing in from tropical cyclones in the south of Honshu and near the Maejima Islands, so atmospheric conditions are expected to become unstable over a wide area from northern Japan to western Japan.
There is a risk of heavy or very heavy rain, accompanied by local lightning, especially in the afternoon when the temperature rises.
Pay close attention to low land inundation, sudden river flooding, landslides, and heavy gusts such as lightning strikes and tornadoes, as well as "hail".
If there are signs that a developed cumulonimbus cloud is approaching, such as when the sky suddenly darkens, try to ensure safety by moving to a sturdy building.