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2026

21/05/2026
At 3 a.m. at the Hong Kong Observatory : Air temperature : 26 degrees Celsius Relative Humidity : 93 per cent Special Landslip Advisory: Rain has been particularly heavy in North New Territories; and may cause landslides. Pay special attention to landslide risk and stay away from slopes. If landslide occurs nearby, leave immediately and call the Police under safe conditions. Intense gusts reaching 70 kilometres per hour or above may continue to affect Hong Kong. Members of public should seek safe shelter as soon as possible. Please be reminded that:The Red Rainstorm Warning Signal has been issued.The Thunderstorm Warning has been issued. It will remain effective until 4:30 a.m. today. A few squally thunderstorms are expected to occur over Hong Kong.The Special Announcement of Flooding in Northern New Territories has been issued. The air temperatures at other places were: Hong Kong Observatory26 degrees ; King's Park26 degrees ; Wong Chuk Hang28 degrees ; Ta Kwu Ling24 degrees ; Lau Fau Shan24 degrees ; Tai Po24 degrees ; Sha Tin25 degrees ; Tuen Mun25 degrees ; Tseung Kwan O27 degrees ; Sai Kung25 degrees ; Cheung Chau25 degrees ; Chek Lap Kok26 degrees ; Tsing Yi25 degrees ; Shek Kong24 degrees ; Tsuen Wan Ho Koon24 degrees ; Tsuen Wan Shing Mun Valley25 degrees ; Hong Kong Park26 degrees ; Shau Kei Wan27 degrees ; Kowloon City25 degrees ; Happy Valley28 degrees ; Wong Tai Sin25 degrees ; Stanley27 degrees ; Kwun Tong26 degrees ; Sham Shui Po25 degrees ; Kai Tak Runway Park27 degrees ; Yuen Long Park25 degrees ; Tai Mei Tuk24 degrees . Between 1:45 and 2:45 a.m., lightning was detected over all regions. The rainfall recorded in various regions were: Kwai Tsing48 to 72 mm; Sha Tin32 to 65 mm; Wong Tai Sin2 to 8 mm; Yau Tsim Mong2 to 5 mm; North District2 to 36 mm; Tsuen Wan13 to 70 mm; Tai Po13 to 63 mm; Sham Shui Po11 to 28 mm; Kowloon City1 to 6 mm; Tuen Mun0 to 7 mm; Kwun Tong0 to 4 mm; Sai Kung0 to 34 mm; Islands District0 to 22 mm; Yuen Long0 to 18 mm; Central & Western District0 to 11 mm; Southern District0 to 1 mm.

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