Thunderstorms frequently bring along strong gusts. Under the influence of a trough of low pressure over southern China, there were heavy rain and squally thunderstorms on 24 April 2007. The Red Rainstorm Warning Signal was issued that day. Peak gust reaching gale force was recorded by Lau Fau Shan AWS at 10:01 a.m. The weather camera captured a small tree being violently swayed by strong winds.

Photo taken at Lau Fau Shan Automatic Weather Station, looking towards the west
Weather Radar Picture

200704240000lfs dir anemometer 

Variation of wind speed recorded by the automatic weather station at Lau Fau Shan on 24 April 2007

 

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