The Hong Kong Observatory on Saturday afternoon issued the typhoon signal No 1 as tropical cyclone Bailu came within 800km of the city as it sped towards Taiwan and mainland China.The Guangdong region, including Hong Kong, experienced very hot weather under the influence of the tropical cyclone, with maximum temperatures exceeding 36 degrees in parts of the New Territories.Visibility in Victoria Harbour fell to around 3,000 metres with the city blanketed in haze. The air quality health index…
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