Tropical Cyclones in 2024 > Table 4.6
Table 4.6 Duration of tropical cyclone warning signals issued in Hong Kong: 1956 – 2024
| Signal | Number of occasions | Duration of each occasion | Total duration per year | ||||
|---|---|---|---|---|---|---|---|
| Mean (h min) |
Maximum (h min) |
Minimum (h min) |
Mean (h min) |
Maximum (h min) |
Minimum (h min) |
||
| 1 or higher | 424 | 43 20 | 161 0 (Tilda, 1964) |
4 30 (T.D., 2000) |
266 15 | 570 15 (1964) |
36 35 (1959) |
| 3 or higher | 285 | 29 30 | 124 15 (Mary, 1960) |
4 5 (T.D., 2006) |
121 52 | 306 35 (1974) |
15 5 (2004) |
| 8 or higher | 109 | 14 54 | 66 50 (Mary, 1960) |
2 40 (Wynne, 1984) |
23 33 | 100 55 (1964) |
0 0 |
| 8 NW | 31 | 6 10 | 15 45 | 1 30 | 2 46 | 18 0 | 0 0 |
| 8 SW | 35 | 4 58 | 10 45 | 2 0 | 2 31 | 16 10 | 0 0 |
| 8 NE | 75 | 8 0 | 35 35 | 1 35 | 8 42 | 40 20 | 0 0 |
| 8 SE | 60 | 7 57 | 22 0 | 0 20 | 6 55 | 31 30 | 0 0 |
| 9 or higher | 26 | 7 3 | 12 25 (York, 1999) |
2 0 (Dujuan, 2003) |
2 39 | 19 25 (1964) |
0 0 |
| 10 | 16 | 6 30 | 11 0 (York, 1999) |
2 30 (Alice, 1961) |
1 30 | 12 10 (1964) |
0 0 |
Note: ( ) are the years and the names of the tropical cyclones which created the record.