TROPICAL CYCLONES IN 2008
Table 4.4
Frequency and total duration of display of tropical cyclone warning signals : 1956 - 2008
| Year | Signals | Total duration | ||||||||
| 1 | 3 | 8 NW | 8 SW | 8 NE | 8 SE | 9 | 10 | h | min | |
| 1956 | 5 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 191 | 25 |
| 1957 | 4 | 9 | 1 | 1 | 2 | 2 | 0 | 1 | 295 | 45 |
| 1958 | 4 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 214 | 5 |
| 1959 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 36 | 35 |
| 1960 | 11 | 7 | 0 | 2 | 2 | 2 | 1 | 1 | 432 | 35 |
| 1961 | 6 | 7 | 1 | 2 | 1 | 0 | 1 | 1 | 192 | 55 |
| 1962 | 4 | 3 | 0 | 1 | 1 | 0 | 1 | 1 | 158 | 10 |
| 1963 | 4 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 175 | 50 |
| 1964 | 11 | 14 | 1 | 3 | 5 | 3 | 3 | 2 | 570 | 15 |
| 1965 | 7 | 6 | 0 | 0 | 1 | 1 | 0 | 0 | 239 | 40 |
| 1966 | 6 | 5 | 0 | 0 | 2 | 2 | 0 | 0 | 284 | 40 |
| 1967 | 8 | 6 | 0 | 0 | 2 | 1 | 0 | 0 | 339 | 10 |
| 1968 | 7 | 7 | 0 | 1 | 1 | 0 | 1 | 1 | 290 | 10 |
| 1969 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 110 | 15 |
| 1970 | 6 | 8 | 2 | 1 | 2 | 0 | 0 | 0 | 286 | 45 |
| 1971 | 9 | 10 | 1 | 3 | 2 | 2 | 1 | 1 | 323 | 25 |
| 1972 | 8 | 6 | 0 | 0 | 1 | 1 | 0 | 0 | 288 | 20 |
| 1973 | 8 | 6 | 1 | 1 | 1 | 0 | 1 | 0 | 416 | 50 |
| 1974 | 12 | 10 | 0 | 0 | 2 | 1 | 1 | 0 | 525 | 20 |
| 1975 | 8 | 6 | 1 | 0 | 0 | 1 | 1 | 1 | 292 | 20 |
| 1976 | 6 | 6 | 0 | 0 | 1 | 2 | 0 | 0 | 351 | 30 |
| 1977 | 8 | 6 | 0 | 0 | 1 | 0 | 0 | 0 | 395 | 10 |
| 1978 | 8 | 9 | 1 | 1 | 3 | 2 | 0 | 0 | 462 | 10 |
| 1979 | 5 | 5 | 1 | 0 | 2 | 2 | 1 | 1 | 281 | 15 |
| 1980 | 10 | 8 | 0 | 0 | 1 | 1 | 0 | 0 | 414 | 5 |
| 1981 | 5 | 4 | 0 | 0 | 1 | 1 | 0 | 0 | 202 | 20 |
| 1982 | 7 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 247 | 35 |
| 1983 | 8 | 7 | 0 | 1 | 2 | 2 | 1 | 1 | 289 | 42 |
| 1984 | 6 | 6 | 0 | 0 | 1 | 0 | 0 | 0 | 280 | 2 |
| 1985 | 5 | 4 | 1 | 0 | 0 | 1 | 0 | 0 | 193 | 35 |
| 1986 | 6 | 7 | 0 | 1 | 1 | 0 | 0 | 0 | 305 | 0 |
| 1987 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 165 | 45 |
| 1988 | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 204 | 10 |
| 1989 | 7 | 8 | 0 | 0 | 2 | 2 | 0 | 0 | 306 | 10 |
| 1990 | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 245 | 10 |
| 1991 | 8 | 6 | 0 | 0 | 1 | 1 | 0 | 0 | 349 | 55 |
| 1992 | 5 | 5 | 0 | 0 | 1 | 1 | 0 | 0 | 167 | 5 |
| 1993 | 8 | 9 | 0 | 0 | 2 | 4 | 0 | 0 | 325 | 40 |
| 1994 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 138 | 10 |
| 1995 | 8 | 6 | 2 | 2 | 1 | 1 | 0 | 0 | 348 | 50 |
| 1996 | 7 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 189 | 0 |
| 1997 | 2 | 3 | 0 | 1 | 1 | 0 | 1 | 0 | 97 | 30 |
| 1998 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 188 | 35 |
| 1999 | 10 | 13 | 4 | 3 | 2 | 0 | 2 | 1 | 520 | 0 |
| 2000 | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 329 | 5 |
| 2001 | 6 | 6 | 1 | 1 | 2 | 1 | 0 | 0 | 253 | 35 |
| 2002 | 3 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 144 | 25 |
| 2003 | 4 | 5 | 1 | 1 | 1 | 1 | 1 | 0 | 158 | 0 |
| 2004 | 3 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 77 | 35 |
| 2005 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 142 | 45 |
| 2006 | 10 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 317 | 50 |
| 2007 | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 86 | 50 |
| 2008 | 8 | 9 | 2 | 2 | 3 | 2 | 1 | 0 | 347 | 0 |
| Total | 337 | 293 | 22 | 30 | 57 | 42 | 18 | 12 | 14189 | 59 |
| Mean | 6.4 | 5.5 | 0.4 | 0.6 | 1.1 | 0.8 | 0.3 | 0.2 | 267 | 44 |
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