Typhoon TracksHome › Western North Pacific 1973
Iris (1973, Western North Pacific)
Lowest pressure970 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind–10-min
Duration14.2 days1973-08-06 – 1973-08-20
Strength rank in 19737 / 21by lowest pressure
All-time rank921 / 19431951–2025
Central pressure over time (hPa)
Compared with other 1973 storms (lowest pressure)
895 hPa
915 hPa
940 hPa
960 hPa
965 hPa
970 hPa
970 hPa
975 hPa
975 hPa
975 hPa
980 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1973-08-06 12:00 | 17.3 | 142.3 | – | – |
| 1973-08-06 18:00 | 17.4 | 141.4 | – | 1,008 |
| 1973-08-07 00:00 | 17.3 | 140.6 | – | 1,008 |
| 1973-08-07 06:00 | 17.2 | 140.0 | – | 1,004 |
| 1973-08-07 12:00 | 17.0 | 139.0 | – | 1,004 |
| 1973-08-07 18:00 | 16.8 | 138.0 | – | 1,004 |
| 1973-08-08 00:00 | 16.7 | 137.0 | – | 1,004 |
| 1973-08-08 06:00 | 16.7 | 136.1 | – | 1,004 |
| 1973-08-08 12:00 | 16.7 | 135.0 | – | 1,004 |
| 1973-08-08 18:00 | 16.8 | 133.9 | – | 1,004 |
| 1973-08-09 00:00 | 17.2 | 132.7 | – | 1,004 |
| 1973-08-09 06:00 | 17.9 | 132.1 | – | 1,004 |
| 1973-08-09 12:00 | 18.7 | 131.7 | – | 1,004 |
| 1973-08-09 18:00 | 19.5 | 131.3 | – | 1,002 |
| 1973-08-10 00:00 | 20.4 | 131.1 | – | 1,000 |
| 1973-08-10 06:00 | 21.4 | 130.9 | – | 1,000 |
| 1973-08-10 12:00 | 22.1 | 130.9 | – | 1,000 |
| 1973-08-10 18:00 | 22.8 | 130.9 | – | 994 |
| 1973-08-11 00:00 | 23.2 | 130.8 | – | 985 |
| 1973-08-11 06:00 | 23.4 | 130.9 | – | 990 |
| 1973-08-11 12:00 | 23.2 | 130.8 | – | 985 |
| 1973-08-11 18:00 | 23.2 | 130.7 | – | 980 |
| 1973-08-12 00:00 | 23.2 | 130.8 | – | 980 |
| 1973-08-12 06:00 | 23.1 | 130.8 | – | 975 |
| 1973-08-12 12:00 | 23.0 | 131.1 | – | 975 |
| 1973-08-12 18:00 | 23.2 | 131.4 | – | 975 |
| 1973-08-13 00:00 | 23.3 | 131.7 | – | 975 |
| 1973-08-13 06:00 | 23.4 | 132.0 | – | 975 |
| 1973-08-13 12:00 | 23.6 | 132.3 | – | 970 |
| 1973-08-13 18:00 | 24.1 | 132.4 | – | 970 |
| 1973-08-14 00:00 | 24.8 | 132.1 | – | 970 |
| 1973-08-14 06:00 | 25.4 | 131.7 | – | 970 |
| 1973-08-14 12:00 | 26.2 | 131.1 | – | 970 |
| 1973-08-14 18:00 | 27.3 | 130.3 | – | 970 |
| 1973-08-15 00:00 | 28.1 | 129.5 | – | 975 |
| 1973-08-15 06:00 | 28.8 | 128.7 | – | 975 |
| 1973-08-15 12:00 | 29.2 | 127.8 | – | 975 |
| 1973-08-15 18:00 | 29.7 | 126.9 | – | 975 |
| 1973-08-16 00:00 | 30.3 | 126.1 | – | 975 |
| 1973-08-16 06:00 | 31.1 | 125.5 | – | 975 |
| 1973-08-16 12:00 | 32.3 | 125.0 | – | 975 |
| 1973-08-16 18:00 | 33.7 | 124.9 | – | 975 |
| 1973-08-17 00:00 | 35.1 | 125.4 | – | 980 |
| 1973-08-17 06:00 | 37.0 | 126.1 | – | 985 |
| 1973-08-17 12:00 | 38.8 | 127.7 | – | 990 |
| 1973-08-17 18:00 | 40.4 | 129.8 | – | 992 |
| 1973-08-18 00:00 | 41.7 | 132.4 | – | 992 |
| 1973-08-18 06:00 | 42.8 | 135.7 | – | 990 |
| 1973-08-18 12:00 | 43.6 | 139.9 | – | 990 |
| 1973-08-18 18:00 | 43.9 | 145.2 | – | 992 |
| 1973-08-19 00:00 | 43.9 | 149.8 | – | 992 |
| 1973-08-19 06:00 | 44.0 | 153.4 | – | 994 |
| 1973-08-19 12:00 | 44.0 | 156.9 | – | 996 |
| 1973-08-19 18:00 | 44.0 | 160.9 | – | 996 |
| 1973-08-20 00:00 | 44.1 | 165.0 | – | 998 |
| 1973-08-20 06:00 | 44.5 | 168.9 | – | 1,000 |
| 1973-08-20 12:00 | 45.4 | 173.0 | – | 1,000 |
| 1973-08-20 18:00 | 46.5 | 176.6 | – | 1,000 |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).