TROPICAL CYCLONES IN 2003
TABLE 4.4
FREQUENCY AND TOTAL DURATION OF DISPLAY OF TROPICAL CYCLONE WARNING SIGNALS : 1956-2003
| 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 |
| Total | 309 | 275 | 19 | 26 | 53 | 40 | 17 | 12 | 13217 59 |
| Mean | 6.4 | 5.7 | 0.4 | 0.5 | 1.1 | 0.8 | 0.4 | 0.3 | 275 22 |
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