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Roy (1984, Western North Pacific)
Lowest pressure996 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind40 kt (21 m/s)10-min
Duration5.0 days1984-10-09 – 1984-10-14
Strength rank in 198425 / 27by lowest pressure
All-time rank1762 / 19431951–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 1984 storms (lowest pressure)
985 hPa
985 hPa
990 hPa
992 hPa
994 hPa
996 hPa
996 hPa
998 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1984-10-09 00:00 | 8.8 | 138.9 | – | – |
| 1984-10-09 06:00 | 9.0 | 139.9 | – | 1,006 |
| 1984-10-09 12:00 | 9.3 | 140.5 | – | 1,006 |
| 1984-10-09 18:00 | 9.9 | 140.6 | – | 1,004 |
| 1984-10-10 00:00 | 10.2 | 141.0 | – | 1,004 |
| 1984-10-10 06:00 | 10.7 | 141.7 | – | 1,004 |
| 1984-10-10 12:00 | 11.3 | 142.4 | – | 1,006 |
| 1984-10-10 18:00 | 12.0 | 143.0 | – | 1,004 |
| 1984-10-11 00:00 | 12.7 | 143.3 | – | 1,000 |
| 1984-10-11 06:00 | 13.6 | 143.2 | 35 | 1,000 |
| 1984-10-11 12:00 | 14.3 | 143.2 | 35 | 1,000 |
| 1984-10-11 18:00 | 14.8 | 143.2 | 40 | 998 |
| 1984-10-12 00:00 | 15.3 | 143.3 | 40 | 998 |
| 1984-10-12 06:00 | 16.2 | 143.5 | 40 | 996 |
| 1984-10-12 12:00 | 17.3 | 143.8 | 40 | 998 |
| 1984-10-12 18:00 | 18.5 | 144.1 | 40 | 998 |
| 1984-10-13 00:00 | 19.8 | 144.8 | – | 1,000 |
| 1984-10-13 06:00 | 21.0 | 145.8 | – | 1,000 |
| 1984-10-13 12:00 | 22.6 | 146.8 | – | 1,004 |
| 1984-10-13 18:00 | 24.2 | 147.8 | – | 1,004 |
| 1984-10-14 00:00 | 26.0 | 149.0 | – | 1,004 |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).