TROPICAL CYCLONES IN 2011
SIX-HOURLY POSITION AND INTENSITY DATA OF SEVERE TYPHOON ROKE (1115)
| Month | Date | Time (UTC) |
Intensity | Estimated minimum central pressure (hPa) |
Estimated maximum surface winds (m/s) |
Lat. °N |
Long. °E |
| SEP | 13 | 1200 | T.D. | 999 | 13 | 22.2 | 138.0 |
| 1800 | T.D. | 998 | 16 | 23.8 | 137.9 | ||
| 14 | 0000 | T.D. | 998 | 16 | 24.3 | 137.5 | |
| 0600 | T.D. | 1000 | 13 | 24.6 | 136.8 | ||
| 1200 | T.D. | 999 | 13 | 25.4 | 135.5 | ||
| 1800 | T.D. | 998 | 13 | 25.5 | 134.0 | ||
| 15 | 0000 | T.S. | 995 | 18 | 25.5 | 133.0 | |
| 0600 | T.S. | 990 | 18 | 25.7 | 131.5 | ||
| 1200 | T.S. | 990 | 18 | 25.9 | 131.0 | ||
| 1800 | T.S. | 990 | 18 | 26.1 | 130.4 | ||
| 16 | 0000 | T.S. | 990 | 18 | 26.2 | 130.2 | |
| 0600 | T.S. | 988 | 21 | 26.3 | 130.0 | ||
| 1200 | T.S. | 988 | 21 | 26.1 | 129.6 | ||
| 1800 | T.S. | 985 | 23 | 25.7 | 129.5 | ||
| 17 | 0000 | T.S. | 985 | 23 | 25.3 | 129.6 | |
| 0600 | S.T.S. | 980 | 25 | 25.1 | 129.9 | ||
| 1200 | S.T.S. | 975 | 28 | 24.8 | 130.2 | ||
| 1800 | S.T.S. | 975 | 28 | 24.8 | 130.5 | ||
| 18 | 0000 | S.T.S. | 975 | 28 | 25.2 | 131.0 | |
| 0600 | S.T.S. | 975 | 28 | 25.9 | 130.8 | ||
| 1200 | S.T.S. | 975 | 28 | 26.2 | 130.4 | ||
| 1800 | S.T.S. | 975 | 28 | 26.4 | 130.3 | ||
| 19 | 0000 | S.T.S. | 972 | 31 | 26.7 | 130.3 | |
| 0600 | S.T.S. | 972 | 31 | 27.7 | 130.4 | ||
| 1200 | T. | 970 | 33 | 28.2 | 130.2 | ||
| 1800 | T. | 965 | 36 | 28.2 | 130.6 | ||
| 20 | 0000 | T. | 960 | 39 | 28.9 | 131.6 | |
| 0600 | T. | 955 | 41 | 29.3 | 132.3 | ||
| 1200 | S.T. | 950 | 43 | 30.3 | 133.6 | ||
| 1800 | S.T. | 950 | 43 | 31.8 | 134.6 | ||
| 21 | 0000 | S.T. | 950 | 43 | 33.1 | 136.0 | |
| 0600 | T. | 955 | 41 | 34.9 | 137.8 | ||
| 1200 | T. | 965 | 36 | 37.1 | 140.7 | ||
| 1800 | T. | 975 | 33 | 40.5 | 143.6 | ||
| 22 | 0000 | S.T.S. | 980 | 31 | 42.7 | 146.6 | |
| Became Extratropical | |||||||
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