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Ivy (1977, Western North Pacific)
Lowest pressure940 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind80 kt (41 m/s)10-min
Duration9.5 days1977-10-18 – 1977-10-27
Strength rank in 19775 / 21by lowest pressure
All-time rank441 / 19431951–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 1977 storms (lowest pressure)
905 hPa
920 hPa
920 hPa
925 hPa
940 hPa
945 hPa
950 hPa
965 hPa
965 hPa
965 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1977-10-18 00:00 | 7.0 | 148.0 | – | 1,008 |
| 1977-10-18 06:00 | 7.7 | 147.3 | – | 1,006 |
| 1977-10-18 12:00 | 8.6 | 146.5 | – | 1,006 |
| 1977-10-18 18:00 | 9.5 | 145.8 | – | 1,006 |
| 1977-10-19 00:00 | 10.7 | 145.7 | – | 1,004 |
| 1977-10-19 06:00 | 11.6 | 145.8 | – | 1,004 |
| 1977-10-19 12:00 | 12.5 | 146.0 | – | 1,004 |
| 1977-10-19 18:00 | 13.2 | 146.1 | – | 1,004 |
| 1977-10-20 00:00 | 13.8 | 146.3 | – | 1,004 |
| 1977-10-20 06:00 | 14.6 | 146.5 | – | 1,002 |
| 1977-10-20 12:00 | 15.3 | 146.9 | – | 1,000 |
| 1977-10-20 18:00 | 15.9 | 147.3 | – | 1,000 |
| 1977-10-21 00:00 | 16.3 | 147.5 | – | 998 |
| 1977-10-21 06:00 | 16.6 | 147.4 | – | 998 |
| 1977-10-21 12:00 | 17.0 | 147.2 | – | 998 |
| 1977-10-21 18:00 | 17.2 | 146.6 | – | 996 |
| 1977-10-22 00:00 | 17.4 | 146.0 | – | 990 |
| 1977-10-22 06:00 | 17.1 | 145.6 | 40 | 990 |
| 1977-10-22 12:00 | 16.9 | 145.7 | 40 | 985 |
| 1977-10-22 18:00 | 17.3 | 146.1 | 45 | 980 |
| 1977-10-23 00:00 | 17.8 | 146.7 | 50 | 980 |
| 1977-10-23 06:00 | 18.4 | 147.3 | 55 | 975 |
| 1977-10-23 12:00 | 19.3 | 148.0 | 60 | 970 |
| 1977-10-23 18:00 | 20.3 | 149.1 | 60 | 965 |
| 1977-10-24 00:00 | 21.2 | 150.3 | 65 | 965 |
| 1977-10-24 06:00 | 22.0 | 151.5 | 70 | 960 |
| 1977-10-24 12:00 | 23.2 | 152.6 | 70 | 955 |
| 1977-10-24 18:00 | 24.2 | 153.5 | 70 | 950 |
| 1977-10-25 00:00 | 25.4 | 154.2 | 80 | 950 |
| 1977-10-25 06:00 | 26.4 | 154.9 | 80 | 945 |
| 1977-10-25 12:00 | 27.4 | 155.4 | 80 | 940 |
| 1977-10-25 18:00 | 28.2 | 155.9 | 80 | 940 |
| 1977-10-26 00:00 | 29.1 | 156.5 | 75 | 945 |
| 1977-10-26 06:00 | 30.3 | 157.3 | 75 | 945 |
| 1977-10-26 12:00 | 31.9 | 158.5 | 75 | 950 |
| 1977-10-26 18:00 | 34.1 | 160.3 | 70 | 955 |
| 1977-10-27 00:00 | 38.0 | 163.8 | 50 | 965 |
| 1977-10-27 06:00 | 42.8 | 171.4 | – | 980 |
| 1977-10-27 12:00 | 46.0 | 178.1 | – | 984 |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).