Japan is facing a dual threat of extreme heat and heavy rainfall. Record-high temperatures exceeding 40 degrees Celsius were recorded in Gifu and Aichi prefectures, marking the first "extremely hot day" since the Japan Meteorological Agency began its current observation system. Similar scorching conditions are forecast for the Kanto and Tokai regions on June 22nd, prompting urgent heatstroke warnings. Simultaneously, northeastern Japan is bracing for intense rainfall accompanied by thunder and lightning. Authorities are warning of potential landslides and urging residents to exercise extreme caution. The public is advised to take necessary precautions against heatstroke and be aware of the risk of severe weather events. This challenging weather pattern requires heightened vigilance nationwide.