Periods during which sustained strong and gale force winds were attained at the eight reference anemometers in the tropical cyclone warning system
when tropical cyclone warning signals for Wipha were in force

At Cheung Chau , start time when strong wind speed was attained: 03:40 PM 30-Jul ;
End time when strong wind speed was attained : 06:22 AM 2-Aug ;

At Cheung Chau , start time when gale force wind speed was attained: 02:17 PM 31-Jul ;
End time when gale force wind speed was attained : 10:08 PM 1-Aug ;

At Hong Kong International Airport , start time when strong wind speed was attained: 11:59 PM 30-Jul ;
End time when strong wind speed was attained : 09:52 AM 1-Aug ;

At Kai Tak , start time when strong wind speed was attained: 02:02 PM 31-Jul ;
End time when strong wind speed was attained : 10:46 AM 1-Aug ;

At Lau Fau Shan , start time when strong wind speed was attained: 02:21 PM 31-Jul ;
End time when strong wind speed was attained : 08:04 AM 1-Aug ;

At Sai Kung , start time when strong wind speed was attained: 12:24 PM 31-Jul ;
End time when strong wind speed was attained : 08:05 AM 1-Aug ;

At Tsing Yi Shell Oil Depot , start time when strong wind speed was attained: 07:36 AM 1-Aug ;
End time when strong wind speed was attained : 07:39 AM 1-Aug ;

The sustained wind speed did not attain strong force at Sha Tin and Ta Kwu Ling.

Strong wind: 10-minute mean wind speed of 41-62 km/h

Gale force wind: 10-minute mean wind speed of 63-87 km/h

Note: The table gives the start and end time of sustained strong or gale force winds. Winds might fluctuate above or below the specified wind speeds in between the times indicated.