TROPICAL CYCLONES IN 2008

Table 4.6

Duration of tropical cyclone warning signals issued in Hong Kong : 1956 - 2008

Signal	Number of occasions	Duration of each occasion						Total duration per year
		Mean		Maximum		Minimum		Mean		Maximum		Minimum
		h	min	h	min	h	min	h	min	h	min	h	min
1 or higher	328	43	16	161	0	4	30	267	44	570	15	36	35
				(Tilda, 1964)		(T.D., 2000)				(1964)		(1959)
3 or higher	218	30	11	124	15	4	30	124	9	306	35	15	5
				(Mary, 1960)		(T.D., 2000)				(1974)		(2004)
8 or higher	77	15	12	66	50	2	40	22	5	100	55	0	0
				(Mary, 1960)		(Wynne, 1984)				(1964)
8 NW	22	5	58	15	45	1	30	2	28	18	0	0	0
8 SW	30	4	54	10	45	2	0	2	47	16	10	0	0
8 NE	57	7	50	35	35	2	0	8	26	40	20	0	0
8 SE	42	7	19	21	45	0	20	5	48	31	15	0	0
9 or higher	19	7	14	12	25	2	0	2	36	19	25	0	0
				(York, 1999)		(Dujuan, 2003)				(1964)
10	12	6	34	11	0	2	30	1	29	12	10	0	0
				(York, 1999)		(Alice, 1961)				(1964)

Note: ( ) are the years and the names of the tropical cyclones which created the record.

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