
China’s National Emergency Broadcast and the Central Meteorological Observatory warned on 27 September that large swathes of the country will face heavy rain, thunderstorms, strong winds and localised hail from 27–30 September—just as millions prepare for National Day journeys. Rain belts will linger from eastern Sichuan through Jiangsu, with cumulative precipitation of 60–120 mm and pockets in the Sichuan Basin topping 200 mm. Thunderstorm-hail risk extends to Liaoning, Shanghai, Zhejiang and Guangxi, while a powerful cold front descending from Lake Baikal could drop temperatures in North and Northeast China to post-summer lows. The weather bureau urged travellers to avoid low-lying roads, monitor airline and railway notices, and be alert for flash-flood-induced landslides when driving to mountain resorts. Carriers have already signalled the possibility of short-notice flight cancellations at Shanghai Hongqiao, Chengdu Tianfu and Chongqing Jiangbei airports. For mobility managers the advisory means activating emergency-communication protocols: push SMS alerts to travelling staff, reconfirm insurance coverage for weather-related delays, and ensure expatriates in second-tier cities know the 24-hour hotline of their local foreign affairs office. Companies operating outdoor team-building events during the holiday should have contingency indoor venues and review their liability waivers for extreme-weather clauses.