Group 1 - The first typhoon of the year, "Butterfly," formed on June 11, indicating the official start of the typhoon season, which is notably late this year compared to the average formation date of March 24 from 1991 to 2024, being over two months delayed [2][3] - "Butterfly" is currently classified as a tropical storm, with expectations of intensifying to a strong tropical storm or typhoon level (10-12 scale) due to favorable conditions such as high sea temperatures and moisture from the southwest monsoon [1][2] - The typhoon is projected to bring significant wind and rain impacts to Guangdong, with wind speeds reaching 7-10 levels in various coastal areas and heavy rainfall expected from June 13 to 15, marking the strongest precipitation event since the onset of the flood season [2][3] Group 2 - The delay in the typhoon season is attributed to a larger and stronger subtropical high-pressure system, which has suppressed the necessary convective development for typhoon formation, along with a southward shift in the tropical convergence zone and delayed summer monsoon onset [3]

Group 1 - The arrival of the "Plum Rain" season is imminent, with significant rainfall expected in Zhejiang province starting from June 8, lasting approximately one month [1][2] - The current weather conditions are influenced by a strong subtropical high pressure system, which is broader than in previous years, and cold air systems that may interact with it [2] - The complexity of this year's weather patterns is highlighted, with potential for both "Plum Rain + Typhoon" scenarios or interruptions in the rainy season [2][3] Group 2 - The weather forecast indicates that from June 7 to June 10, Hangzhou may experience several strong rainfall events, coinciding with the annual college entrance examination period [3] - Precautions are advised for students during the examination days due to expected hot and humid conditions, followed by rain, emphasizing the need for hydration and rain gear [3]