今年我国江南江淮地区入梅偏早

Group 1 - The core viewpoint of the articles is that the Meiyu season in China has started earlier than usual this year, with significant rainfall expected in various regions, which may alleviate drought conditions in some areas [1][2] - The Meiyu season began on June 7 in the Jiangnan and the middle and lower reaches of the Yangtze River, which is earlier by 2 and 7 days compared to the average, respectively [1] - The climate center predicts that the rain belt will shift northward, with heavy rainfall expected in the Huanghuai, North China, and southern Northeast regions in July [1] Group 2 - The climate center warns that the northward shift of the main flood season rain belt does not indicate a weakening of the Meiyu, but rather an increased risk of extreme precipitation events [2] - After the onset of Meiyu, strong convective weather such as short-term heavy rainfall, thunderstorms, and hail is expected to occur frequently, necessitating preparedness for flood prevention and geological disaster management [2] - The onset of the Meiyu season is expected to alleviate drought conditions in the eastern Southwest and Huanghuai regions, while drought in the southeastern Northwest is likely to persist due to weaker rainfall [2]