本轮华北强降雨为何如此极端？专家解读→

Core Insights - The extreme rainfall in North China is characterized by prolonged duration and significant localized precipitation, with areas like Beijing experiencing rainfall exceeding 500 to 600 millimeters in just 3 to 4 days, which is equivalent to the annual rainfall for the same period [1] - The occurrence of this extreme weather is attributed to the northward movement of the subtropical high pressure, which continuously transports moisture to the northern regions, compounded by geographical factors that enhance rainfall intensity [1] - The current weather pattern reflects a typical flood season in China, where strong rainfall coincides with high temperatures, leading to challenges in agricultural production, particularly for crops like corn that are in critical growth stages [1] Weather Impact - The strong rainfall process in North China is gradually weakening, with the core rainfall expected to conclude, although short-term thunderstorms and showers may still occur in the next two days [2] - The transition from dry to wet conditions has created a scenario of "drought-flood rapid transition," posing risks to agricultural production, necessitating vigilance against flooding and pest issues [1]