中国气象局：入汛以来 全国累计发生23次强对流过程

Group 1 - The rainy season in China has started earlier than usual, with a total average precipitation of 303.9 mm from March 15 to July 22, which is 6.2% less than the historical average for the same period [1] - The Meiyu season in the Yangtze River region began on June 7, 7 days earlier than the historical average, and ended on June 30, 16 days earlier than usual, with Meiyu rainfall 11.7% below the historical average [1] - The North China rainy season started on July 5, 13 days earlier than the historical average, marking the earliest start since 1961 [1] Group 2 - The average temperature across the country has been high, with an average of 8.5 high-temperature days, the highest for the historical period, and an average temperature of 16.8°C, the second highest historically [2] - Six provinces, including Shaanxi and Henan, recorded their highest historical temperatures, with 45 weather stations reporting daily maximum temperatures exceeding historical extremes [2] - A significant drought affected regions such as South China and the Yangtze River basin, with the maximum area of moderate drought reaching 2.018 million square kilometers on April 18, although most areas have since seen improvements [2] Group 3 - There have been seven typhoons generated in the Northwest Pacific and South China Sea since the start of the rainy season, with three making landfall in China, which is 1.1 more than the historical average [2] - The first typhoon, "Butterfly," formed on June 11, significantly later than the historical average of March 25, and made landfall immediately [2] - Typhoon "Danas" and Typhoon "Wipha" caused significant rainfall and strong winds in regions such as Taiwan and Guangdong, impacting the coastal areas of South China [2] Group 4 - A total of 23 strong convective weather events have occurred since the start of the rainy season, characterized by localized extreme wind and hail events [3] - On April 11-12, 12-level winds were recorded across 23 provinces, with 64 weather stations reporting maximum wind speeds exceeding historical extremes [3] - Severe weather events included hail in Beijing with a maximum diameter of 5 cm and extreme thunderstorm winds in Dongying, Shandong, reaching 47.9 m/s [3]