TROPICAL CYCLONES IN 2003
SIX-HOURLY POSITION AND INTENSITY DATA OF
TROPICAL STORM YANYAN (0301)
| Month | Date | Time (UTC) |
Intensity | Estimated minimum central pressure (hPa) |
Estimated maximum surface winds (m/s) |
Lat. °N |
Long. °E |
| Jan | 15 | 1800 | T.D. | 1002 | 16 | 7.3 | 161.0 |
| 16 | 0000 | T.D. | 1002 | 16 | 7.8 | 159.4 | |
| 0600 | T.D. | 1002 | 16 | 8.3 | 157.8 | ||
| 1200 | T.D. | 1002 | 16 | 8.8 | 156.3 | ||
| 1800 | T.D. | 1002 | 16 | 9.3 | 154.6 | ||
| 17 | 0000 | T.D. | 1002 | 16 | 10.0 | 152.9 | |
| 0600 | T.D. | 1002 | 16 | 10.9 | 151.1 | ||
| 1200 | T.D. | 1002 | 16 | 11.7 | 149.7 | ||
| 1800 | T.D. | 1002 | 16 | 12.5 | 148.2 | ||
| 18 | 0000 | T.D. | 1002 | 16 | 13.3 | 147.1 | |
| 0600 | T.S. | 998 | 18 | 13.8 | 146.7 | ||
| 1200 | T.S. | 994 | 21 | 14.2 | 146.6 | ||
| 1800 | T.S. | 994 | 21 | 14.7 | 147.1 | ||
| 19 | 0000 | T.S. | 994 | 21 | 14.9 | 148.0 | |
| 0600 | T.S. | 998 | 18 | 15.1 | 148.8 | ||
| 1200 | T.S. | 998 | 18 | 15.4 | 149.8 | ||
| 1800 | T.S. | 998 | 18 | 15.9 | 150.9 | ||
| 20 | 0000 | T.S. | 998 | 18 | 16.4 | 152.1 | |
| 0600 | T.S. | 998 | 18 | 17.0 | 153.4 | ||
| 1200 | T.D. | 1002 | 16 | 17.5 | 154.7 | ||
| Dissipated | |||||||
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