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10-minute mean wind direction and speed recorded at various stations in Hong Kong at 10 a.m. on 23 July 2017 when the centre of Roke was near the Plover Cove Reservoir and closest to the Hong Kong Observatory Headquarters.
10-minute mean wind direction and speed recorded at various stations in Hong Kong at 10 a.m. on 23 July 2017 when the centre of Roke was near the Plover Cove Reservoir and closest to the Hong Kong Observatory Headquarters.

Note: The 10-minute mean wind speeds recorded at the time at Ngong Ping was 9 km/h.