Super Typhoon Usagi

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

At Cheung Chau, start time when strong wind speed was reached: 1:57 p.m. 22 Sep;
end time when strong wind speed was reached : 5:33 a.m. 23 Sep;
At Cheung Chau, start time when gale force wind speed was reached: 6:17 p.m. 22 Sep;
end time when gale force wind speed was reached : 11:47 p.m. 22 Sep;

At the Hong Kong International Airport, start time when strong wind speed was reached: 3:47 p.m. 22 Sep; 
end time when strong wind speed was reached : 5:48 a.m. 23 Sep;
At the Hong Kong International Airport, start time when gale force wind speed was reached: 8:26 p.m. 22 Sep;
end time when gale force wind speed was reached : 01:34 a.m. 23 Sep;

At Kai Tak, start time when  strong wind speed was reached: 5:08 p.m. 22 Sep; 
end time when strong wind speed was reached : 11:20 p.m. 22 Sep;

At Lau Fau Shan, start time when  strong wind speed was reached: 5:02 p.m.  22 Sep; 
end time when strong wind speed was reached : 4:15 a.m.  23 Sep;
At Lau Fau Shan, start time when gale force wind speed was reached: 7:31 p.m. 22 Sep;
end time when gale force wind speed was reached : 01:11 a.m. 23 Sep;

At Tsing Yi Shell Oil Depot, start time when  strong wind speed was reached: 8:03 p.m. 22 Sep; 
end time when strong wind speed was reached : 00:39 a.m. 23 Sep;

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

Strong winds: 10-minute mean wind speed of 41- 62 km/h
Gale force winds:  10-minute mean wind speed of 63- 87 km/h

Note: The table gives the start and end time when strong or gale force winds were recorded. Note that the winds might fluctuate above or below the specified wind speeds in between the times indicated.