Typhoon TracksHome › Western North Pacific 1973
Joan (1973, Western North Pacific)
Lowest pressure992 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind–10-min
Duration6.0 days1973-08-17 – 1973-08-23
Strength rank in 197318 / 21by lowest pressure
All-time rank1586 / 19431951–2025
Central pressure over time (hPa)
Compared with other 1973 storms (lowest pressure)
980 hPa
980 hPa
980 hPa
985 hPa
990 hPa
992 hPa
992 hPa
998 hPa
1000 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1973-08-17 00:00 | 20.1 | 133.6 | – | – |
| 1973-08-17 06:00 | 19.9 | 132.9 | – | – |
| 1973-08-17 12:00 | 19.5 | 132.2 | – | – |
| 1973-08-17 18:00 | 19.2 | 131.4 | – | – |
| 1973-08-18 00:00 | 19.2 | 130.5 | – | 1,002 |
| 1973-08-18 06:00 | 19.4 | 129.4 | – | 1,002 |
| 1973-08-18 12:00 | 19.7 | 128.1 | – | 1,002 |
| 1973-08-18 18:00 | 20.3 | 126.7 | – | 1,000 |
| 1973-08-19 00:00 | 21.0 | 125.6 | – | 998 |
| 1973-08-19 06:00 | 21.3 | 124.6 | – | 996 |
| 1973-08-19 12:00 | 21.4 | 123.5 | – | 994 |
| 1973-08-19 18:00 | 21.3 | 122.3 | – | 992 |
| 1973-08-20 00:00 | 21.3 | 121.2 | – | 994 |
| 1973-08-20 06:00 | 21.3 | 119.4 | – | 996 |
| 1973-08-20 12:00 | 21.2 | 117.5 | – | 998 |
| 1973-08-20 18:00 | 21.4 | 115.7 | – | 998 |
| 1973-08-21 00:00 | 21.4 | 113.7 | – | 998 |
| 1973-08-21 06:00 | 21.3 | 112.3 | – | 998 |
| 1973-08-21 12:00 | 21.1 | 111.2 | – | 998 |
| 1973-08-21 18:00 | 20.8 | 110.0 | – | 998 |
| 1973-08-22 00:00 | 20.4 | 108.9 | – | 998 |
| 1973-08-22 06:00 | 20.0 | 107.2 | – | 998 |
| 1973-08-22 12:00 | 19.9 | 105.0 | – | – |
| 1973-08-22 18:00 | 19.5 | 103.5 | – | – |
| 1973-08-23 00:00 | 18.2 | 102.4 | – | – |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).