TABLE 4.8.2 Ten wettest tropical cyclones in Hong Kong (1884 - 1939, 1947 - 2015)
Tropical Cyclone
Rainfall at the Hong Kong Observatory (mm)
Year
Month
Name
(i)
within 600 km of Hong Kong (T1 T2)
(ii)
24-hour period after T2
(iii)
48-hour period after T2
(iv)
72-hour period after T2
(i) + (iv)
Total T1 (T2 +
72 hours)
1999
8
Sam
368.1
178.9
248.1
248.4
616.5
1926
7
T.C.
34.8#
534.0#
561.1#
562.2#
597.0
1916
6
T.C.
494.8#
27.9#
59.4#
67.2#
562.0
1965
9
Agnes
404.6
8.9
64.3
126.1
530.7
1978
7
Agnes
502.4
12.3
12.3
16.6
519.0
1976
8
Ellen
90.7
394.2
421.0
425.4
516.1
1993
9
Dot
459.6
37.9
37.9
37.9
497.5
1982
8
Dot
41.2
322.5
403.1
450.5
491.7
1995
8
Helen
241.4
146.2
235.2
239.5
480.9
1904
8
T.C.
446.5#
0.0#
3.7#
26.7#
473.2
T1 -
The time when a tropical cyclone was first centred within 600 km of Hong Kong.
T2 -
The time when a tropical cyclone was dissipated within or moved outside 600 km of Hong Kong.
#
For years prior to 1961, column (i) is the sum of daily rainfall on those days when a tropical cyclone was centred within 600 km of Hong Kong, columns (ii) to (iv) show respectively the accumulated daily rainfall on the following one to three days.
T2)