Typhoon TracksHome › Western North Pacific 1998
Yanni (1998, Western North Pacific)
Lowest pressure965 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind65 kt (33 m/s)10-min
Duration7.8 days1998-09-24 – 1998-10-02
Strength rank in 19986 / 16by lowest pressure
All-time rank867 / 19431951–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 1998 storms (lowest pressure)
900 hPa
940 hPa
955 hPa
955 hPa
960 hPa
965 hPa
970 hPa
970 hPa
970 hPa
985 hPa
992 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1998-09-24 06:00 | 12.9 | 134.2 | – | – |
| 1998-09-24 12:00 | 13.7 | 133.5 | – | – |
| 1998-09-24 18:00 | 14.6 | 132.8 | – | – |
| 1998-09-25 00:00 | 15.5 | 131.9 | – | – |
| 1998-09-25 06:00 | 16.5 | 130.7 | – | – |
| 1998-09-25 12:00 | 17.5 | 129.5 | – | – |
| 1998-09-25 18:00 | 18.2 | 128.3 | – | – |
| 1998-09-26 00:00 | 18.7 | 127.2 | – | – |
| 1998-09-26 06:00 | 19.1 | 126.4 | – | – |
| 1998-09-26 12:00 | 19.8 | 125.6 | – | 1,002 |
| 1998-09-26 18:00 | 20.4 | 125.3 | – | 1,002 |
| 1998-09-27 00:00 | 21.0 | 124.8 | – | 1,002 |
| 1998-09-27 06:00 | 21.4 | 124.1 | – | 1,002 |
| 1998-09-27 12:00 | 21.8 | 123.1 | – | 1,002 |
| 1998-09-27 18:00 | 22.5 | 122.3 | – | 1,000 |
| 1998-09-28 00:00 | 23.1 | 122.2 | 35 | 998 |
| 1998-09-28 06:00 | 23.8 | 122.2 | 40 | 992 |
| 1998-09-28 12:00 | 24.5 | 122.4 | 45 | 985 |
| 1998-09-28 18:00 | 25.3 | 122.9 | 50 | 980 |
| 1998-09-29 00:00 | 26.1 | 123.4 | 50 | 975 |
| 1998-09-29 06:00 | 27.2 | 124.3 | 60 | 970 |
| 1998-09-29 12:00 | 28.8 | 125.6 | 65 | 965 |
| 1998-09-29 18:00 | 30.9 | 126.6 | 60 | 970 |
| 1998-09-30 00:00 | 33.0 | 126.9 | 55 | 975 |
| 1998-09-30 06:00 | 34.5 | 127.1 | 50 | 980 |
| 1998-09-30 12:00 | 34.7 | 127.3 | – | 994 |
| 1998-09-30 18:00 | 34.7 | 127.7 | – | 996 |
| 1998-10-01 00:00 | 33.9 | 127.9 | – | 998 |
| 1998-10-01 06:00 | 33.1 | 128.2 | – | 1,000 |
| 1998-10-01 12:00 | 32.0 | 128.4 | – | – |
| 1998-10-01 18:00 | 30.9 | 128.6 | – | – |
| 1998-10-02 00:00 | 29.7 | 128.9 | – | – |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).