Group 1 - The weather in Hangzhou has experienced a dramatic shift from high temperatures to heavy rain, with the highest temperature reaching 37.4°C, a new record for the summer [1] - The city is under yellow warning signals for thunderstorms and strong winds due to the influence of strong convective cloud groups [1] - The recent weather pattern indicates that afternoon thunderstorms will frequently occur, with potential for short-term heavy rain and strong winds [1] Group 2 - The Hangzhou Meteorological Station forecasts that daytime temperatures will remain between 35-36°C for the upcoming week, with some areas reaching 37-39°C [2] - The high temperatures necessitate precautions against heat, including hydration, light meals, and maintaining suitable indoor temperatures [2] - The end of the plum rain season in southern China is anticipated as the subtropical high pressure is expected to extend and control the region, leading to increased high temperatures [2]