The weather bureau issued a red alert for extreme rainfall.
Tips
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In China's official meteorological grading, 24-hour rainfall breaks into 小雨 (light) < 中雨 (moderate) < 大雨 (heavy) < 暴雨 (rainstorm) < 大暴雨 (severe rainstorm) < 特大暴雨 (torrential). 特大暴雨 means more than 250 mm in 24 hours — the top tier.