Shenzhen Meteorological Observatory at 17:52 on Aug 22 upgraded a localized
heavy-rain warning from yellow to orange for parts of Longgang and Longhua
districts after strong rainfall in the past hour in Pinghu, Longcheng, Henggang
and Yuanshan (Longgang) and Guanhu, Fucheng and Guanlan (Longhua). Another 20–40
mm of rain is expected over the next 1–2 hours; elevated risk of urban
inundation, flash floods from mountain torrents, landslides and debris flows in
the affected areas; city on heavy-rain alert.