Shanghai issues high temperature yellow warning signal] the Shanghai Central Meteorological Observatory issued a high temperature yellow warning signal at 13:35 today: affected by the warm air mass, the temperature in the city is rising rapidly. It is expected that the highest temperature in Baoshan, the central city, Jiading, Minhang, Qingpu, Songjiang and other places will reach 35 ℃ today. Please pay attention to the safety of fire and electricity and do a good job in heat prevention and sun prevention.