Hurricane Ilsa (1971)
Jul 31, 12:00 AM UTC – Aug 8, 6:00 PM UTC (8.8 days)
- Peak
- Hurricane, Category 3
- Max sustained wind
- 115 mph (100 kt)
- Lowest pressure
- 978 mb
- Landfalls
- 0
Track
- Hurricane
- Tropical Storm
- Tropical Depression
- Other
- Large white-ringed dots: landfall
Every track point (36)
| UTC | Status | Position | Wind kt | mb | Note |
|---|---|---|---|---|---|
| 1971-07-31 00:00 | TD | 11.9°N 98.2°W | 25 | — | |
| 1971-07-31 06:00 | TD | 12.0°N 99.2°W | 25 | — | |
| 1971-07-31 12:00 | TD | 12.1°N 100.1°W | 25 | — | |
| 1971-07-31 18:00 | TD | 12.3°N 101.0°W | 25 | — | |
| 1971-08-01 00:00 | TD | 12.5°N 101.8°W | 25 | — | |
| 1971-08-01 06:00 | TS | 13.4°N 103.7°W | 45 | — | |
| 1971-08-01 12:00 | HU | 14.5°N 105.4°W | 75 | — | |
| 1971-08-01 18:00 | HU | 15.5°N 106.3°W | 75 | — | |
| 1971-08-02 00:00 | HU | 16.2°N 107.2°W | 75 | — | |
| 1971-08-02 06:00 | HU | 16.5°N 108.2°W | 75 | — | |
| 1971-08-02 12:00 | HU | 16.8°N 109.2°W | 75 | — | |
| 1971-08-02 18:00 | HU | 17.1°N 110.1°W | 75 | — | |
| 1971-08-03 00:00 | HU | 17.5°N 110.8°W | 90 | — | |
| 1971-08-03 06:00 | HU | 17.8°N 111.2°W | 100 | — | |
| 1971-08-03 12:00 | HU | 18.2°N 111.5°W | 100 | — | |
| 1971-08-03 18:00 | HU | 18.5°N 111.8°W | 80 | — | |
| 1971-08-04 00:00 | HU | 18.8°N 112.0°W | 65 | 978 | |
| 1971-08-04 06:00 | HU | 19.1°N 112.2°W | 65 | — | |
| 1971-08-04 12:00 | HU | 19.5°N 112.5°W | 65 | — | |
| 1971-08-04 18:00 | HU | 20.1°N 112.8°W | 65 | — | |
| 1971-08-05 00:00 | HU | 20.8°N 113.5°W | 65 | — | |
| 1971-08-05 06:00 | HU | 21.2°N 114.6°W | 65 | — | |
| 1971-08-05 12:00 | HU | 21.6°N 115.8°W | 65 | — | |
| 1971-08-05 18:00 | TS | 22.0°N 117.0°W | 45 | 988 | |
| 1971-08-06 00:00 | TS | 22.5°N 118.2°W | 45 | — | |
| 1971-08-06 06:00 | TS | 22.9°N 119.4°W | 45 | — | |
| 1971-08-06 12:00 | TS | 23.4°N 120.5°W | 45 | — | |
| 1971-08-06 18:00 | TD | 23.8°N 121.7°W | 25 | — | |
| 1971-08-07 00:00 | TD | 23.8°N 122.9°W | 25 | — | |
| 1971-08-07 06:00 | TD | 23.5°N 123.6°W | 25 | — | |
| 1971-08-07 12:00 | TD | 23.1°N 124.2°W | 25 | — | |
| 1971-08-07 18:00 | TD | 22.9°N 124.9°W | 25 | — | |
| 1971-08-08 00:00 | TD | 22.7°N 125.6°W | 25 | — | |
| 1971-08-08 06:00 | TD | 22.5°N 126.3°W | 25 | — | |
| 1971-08-08 12:00 | TD | 22.3°N 127.1°W | 25 | — | |
| 1971-08-08 18:00 | TD | 22.3°N 127.1°W | 25 | — |
From the National Hurricane Center's best-track archive (HURDAT2), its post-season reanalysis; values can differ from the advisories issued at the time. Source: hurdat2-1851-2025-092326.txt, hurdat2-nepac-1949-2025-092926.txt.