Typhoon TracksHome › Western North Pacific 2017
Sonca (2017, Western North Pacific)
Lowest pressure994 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind35 kt (18 m/s)10-min
Duration9.0 days2017-07-20 – 2017-07-29
Strength rank in 201720 / 27by lowest pressure
All-time rank1707 / 19431951–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 2017 storms (lowest pressure)
985 hPa
985 hPa
985 hPa
990 hPa
990 hPa
994 hPa
994 hPa
998 hPa
1000 hPa
1000 hPa
1002 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 2017-07-20 12:00 | 16.1 | 116.0 | – | – |
| 2017-07-20 18:00 | 16.9 | 115.3 | – | – |
| 2017-07-21 00:00 | 17.4 | 114.6 | – | 1,006 |
| 2017-07-21 06:00 | 17.6 | 113.9 | – | 1,006 |
| 2017-07-21 12:00 | 17.8 | 113.2 | – | 1,006 |
| 2017-07-21 18:00 | 17.8 | 112.8 | – | 1,004 |
| 2017-07-22 00:00 | 17.8 | 112.4 | – | 1,004 |
| 2017-07-22 06:00 | 17.8 | 112.1 | – | 1,002 |
| 2017-07-22 12:00 | 17.7 | 111.8 | – | 1,002 |
| 2017-07-22 18:00 | 17.6 | 111.6 | – | 1,002 |
| 2017-07-23 00:00 | 17.6 | 111.5 | 35 | 1,000 |
| 2017-07-23 06:00 | 17.5 | 111.4 | 35 | 1,000 |
| 2017-07-23 12:00 | 17.4 | 111.4 | 35 | 1,000 |
| 2017-07-23 18:00 | 17.2 | 111.4 | 35 | 998 |
| 2017-07-24 00:00 | 17.1 | 111.2 | 35 | 998 |
| 2017-07-24 06:00 | 17.0 | 110.8 | 35 | 996 |
| 2017-07-24 12:00 | 16.9 | 110.3 | 35 | 996 |
| 2017-07-24 18:00 | 17.0 | 109.6 | 35 | 994 |
| 2017-07-25 00:00 | 17.1 | 108.7 | 35 | 994 |
| 2017-07-25 06:00 | 17.1 | 107.4 | 35 | 994 |
| 2017-07-25 12:00 | 16.8 | 106.3 | – | 998 |
| 2017-07-25 18:00 | 16.5 | 105.1 | – | 998 |
| 2017-07-26 00:00 | 16.2 | 104.2 | – | 998 |
| 2017-07-26 06:00 | 16.1 | 103.7 | – | 998 |
| 2017-07-26 12:00 | 16.2 | 103.3 | – | 998 |
| 2017-07-26 18:00 | 16.2 | 103.0 | – | 998 |
| 2017-07-27 00:00 | 16.5 | 103.2 | – | 998 |
| 2017-07-27 06:00 | 16.7 | 103.5 | – | 998 |
| 2017-07-27 12:00 | 16.9 | 103.8 | – | 1,000 |
| 2017-07-27 18:00 | 17.2 | 104.1 | – | 1,000 |
| 2017-07-28 00:00 | 17.4 | 104.1 | – | 1,002 |
| 2017-07-28 06:00 | 17.6 | 104.1 | – | 1,002 |
| 2017-07-28 12:00 | 17.6 | 103.8 | – | 1,002 |
| 2017-07-28 18:00 | 17.7 | 103.6 | – | 1,004 |
| 2017-07-29 00:00 | 17.7 | 103.6 | – | 1,004 |
| 2017-07-29 06:00 | 17.9 | 103.8 | – | 1,002 |
| 2017-07-29 12:00 | 18.0 | 103.6 | – | 1,002 |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).