TROPICAL CYCLONES IN 2011

Table 3.4.2    

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 for Nesat were in force

Station (See Fig. 1.1)	First time strong wind speed* was reached		Last time strong wind speed* was reached		First time gale force wind speed# was reached		Last time gale force wind speed# was reached
	Date/Month	Time	Date/Month	Time	Date/Month	Time	Date/Month	Time
Cheung Chau	28/9	14:29	30/9	06:08	28/9	21:25	29/9	21:51
Hong Kong International Airport	28/9	20:45	29/9	22:07	29/9	03:05	29/9	14:54
Kai Tak	29/9	00:40	29/9	19:11	-
Sai Kung	28/9	20:02	29/9	18:54	29/9	01:27	29/9	02:08

-  not reaching the specified wind speed

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

#  10-minute mean wind speed of 63 - 87 km/h


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