|
|
| TABLE 4.4 |
FREQUENCY AND TOTAL DURATION OF DISPLAY
OF TROPICAL CYCLONE WARNING SIGNALS : 1956-2006 |
| 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 |
| Total |
325 |
281 |
20 |
27 |
54 |
40 |
17 |
12 |
13756 9 |
| Mean |
6.4 |
5.5 |
0.4 |
0.5 |
1.1 |
0.8 |
0.3 |
0.2 |
269 44 |
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