Irene:Olivia (1971, North Atlantic)
Lowest pressure989 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind60 kt (31 m/s)1-min
Duration8.5 days1971-09-11 – 1971-09-20
Strength rank in 19717 / 14by peak wind
All-time rank536 / 9861950–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 1971 storms (peak wind)
100 kt
75 kt
75 kt
75 kt
60 kt
60 kt
60 kt
60 kt
50 kt
50 kt
50 kt
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1971-09-11 18:00 | 11.0 | -48.5 | 25 | 1,009 |
| 1971-09-12 00:00 | 11.3 | -50.3 | 25 | – |
| 1971-09-12 06:00 | 11.7 | -52.1 | 25 | – |
| 1971-09-12 12:00 | 12.1 | -53.6 | 25 | 1,009 |
| 1971-09-12 18:00 | 12.4 | -55.0 | 25 | – |
| 1971-09-13 00:00 | 12.5 | -56.5 | 25 | – |
| 1971-09-13 06:00 | 12.5 | -57.8 | 25 | – |
| 1971-09-13 12:00 | 12.4 | -58.9 | 25 | – |
| 1971-09-13 18:00 | 12.3 | -59.7 | 25 | – |
| 1971-09-14 00:00 | 12.2 | -60.3 | 25 | – |
| 1971-09-14 06:00 | 12.1 | -60.8 | 25 | – |
| 1971-09-14 12:00 | 12.0 | -61.4 | 25 | 1,007 |
| 1971-09-14 18:00 | 11.9 | -62.1 | 25 | 1,007 |
| 1971-09-15 00:00 | 11.7 | -63.0 | 25 | – |
| 1971-09-15 06:00 | 11.5 | -64.0 | 25 | – |
| 1971-09-15 12:00 | 11.4 | -65.0 | 25 | – |
| 1971-09-15 18:00 | 11.5 | -66.2 | 30 | – |
| 1971-09-16 00:00 | 11.8 | -67.5 | 30 | – |
| 1971-09-16 06:00 | 12.2 | -68.9 | 30 | – |
| 1971-09-16 12:00 | 12.5 | -70.4 | 30 | – |
| 1971-09-16 18:00 | 12.6 | -71.7 | 30 | – |
| 1971-09-17 00:00 | 12.6 | -73.1 | 35 | – |
| 1971-09-17 06:00 | 12.5 | -74.6 | 35 | – |
| 1971-09-17 12:00 | 12.3 | -76.2 | 40 | 1,005 |
| 1971-09-17 18:00 | 12.1 | -77.8 | 40 | 1,004 |
| 1971-09-18 00:00 | 11.9 | -79.2 | 40 | 1,004 |
| 1971-09-18 06:00 | 11.7 | -80.5 | 45 | 1,002 |
| 1971-09-18 12:00 | 11.5 | -81.5 | 55 | 993 |
| 1971-09-18 18:00 | 11.4 | -82.3 | 60 | 989 |
| 1971-09-19 00:00 | 11.4 | -82.9 | 60 | 991 |
| 1971-09-19 06:00 | 11.4 | -83.6 | 60 | 992 |
| 1971-09-19 12:00 | 11.5 | -84.3 | 50 | – |
| 1971-09-19 18:00 | 11.6 | -85.0 | 40 | – |
| 1971-09-20 00:00 | 11.7 | -85.6 | 30 | – |
| 1971-09-20 06:00 | 11.9 | -86.3 | 30 | – |
Winds are NHC 1-minute sustained winds (not directly comparable with 10-minute typhoon winds).