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TROPICAL CYCLONES IN 2005

SIX-HOURLY POSITION AND INTENSITY DATA OFTYPHOON SONCA (0503)

Month Date Time
(UTC)
Intensity Estimated minimum
central pressure
(hPa)
Estimated maximum
surface winds
(m/s)
Lat.
°N
Long.
°E
Apr 22
0600
T.D.
1000
13
11.6
135.9
1200
T.D.
996
16
11.6
134.4
1800
T.D.
996
16
11.6
133.6
23
0000
T.S.
992
18
11.6
132.7
0600
T.S.
988
21
12.1
131.9
1200
T.S.
984
23
12.6
131.5
1800
S.T.S.
980
28
13.2
131.3
24
0000
S.T.S.
975
31
13.6
130.9
0600
T.
965
36
14.1
130.8
1200
T.
955
41
14.5
130.8
1800
T.
950
43
15.2
131.0
25
0000
T.
950
43
15.9
131.2
0600
T.
950
43
16.6
131.6
1200
T.
950
43
17.4
132.3
1800
T.
955
41
18.7
133.0
26
0000
T.
955
41
20.0
134.0
0600
T.
960
39
21.6
135.7
1200
T.
965
36
23.5
138.1
1800
T.
970
33
24.8
140.2
27
0000
S.T.S.
980
28
25.5
142.7
0600
T.S.
984
23
26.7
145.6
Became Extratropical

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