Skip Content

Tropical Cyclones in 2021 > Table 4.8.2

TROPICAL CYCLONES IN 2021

Table 4.8.2    Ten wettest tropical cyclones in Hong Kong (1884 - 1939, 1947 - 2021)

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
2016 10 Sarika 195.6 223.2 223.2 295.7+ 491.3
1995 8 Helen 241.4 146.2 235.2 239.5 480.9

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.
+ 72.5 mm of rainfall overlapped with the rainfall of SuperT. Haima.