Unnamed Hurricane, AL04 1971
Aug 3, 12:00 PM UTC – Aug 11, 6:00 PM UTC (8.3 days)
- Peak
- Hurricane, Category 1
- Max sustained wind
- 85 mph (75 kt)
- Lowest pressure
- 998 mb
- Landfalls
- 0
Track
- Hurricane
- Tropical Storm
- Tropical Depression
- Other
- Large white-ringed dots: landfall
Every track point (34)
| UTC | Status | Position | Wind kt | mb | Note |
|---|---|---|---|---|---|
| 1971-08-03 12:00 | TD | 31.0°N 63.5°W | 25 | — | |
| 1971-08-03 18:00 | TD | 31.5°N 64.0°W | 30 | — | |
| 1971-08-04 00:00 | TD | 32.0°N 64.5°W | 30 | 1015 | |
| 1971-08-04 06:00 | TD | 32.6°N 64.9°W | 30 | 1015 | |
| 1971-08-04 12:00 | TD | 33.5°N 65.0°W | 30 | 1015 | |
| 1971-08-04 18:00 | TD | 34.6°N 64.6°W | 30 | — | |
| 1971-08-05 00:00 | TD | 36.0°N 63.5°W | 30 | 1013 | |
| 1971-08-05 06:00 | TS | 37.5°N 62.0°W | 35 | — | |
| 1971-08-05 12:00 | TS | 39.0°N 60.5°W | 40 | — | |
| 1971-08-05 18:00 | TS | 40.5°N 58.5°W | 50 | 998 | |
| 1971-08-06 00:00 | TS | 41.7°N 56.0°W | 60 | — | |
| 1971-08-06 06:00 | HU | 44.0°N 52.6°W | 70 | — | |
| 1971-08-06 12:00 | EX | 46.7°N 49.3°W | 75 | — | |
| 1971-08-06 18:00 | EX | 50.0°N 47.0°W | 75 | — | |
| 1971-08-07 00:00 | EX | 54.0°N 44.5°W | 70 | — | |
| 1971-08-07 06:00 | EX | 56.8°N 43.0°W | 70 | — | |
| 1971-08-07 12:00 | EX | 58.3°N 41.9°W | 70 | — | |
| 1971-08-07 18:00 | EX | 59.5°N 40.0°W | 70 | — | |
| 1971-08-08 00:00 | EX | 60.8°N 36.0°W | 65 | — | |
| 1971-08-08 06:00 | EX | 62.0°N 31.0°W | 60 | — | |
| 1971-08-08 12:00 | EX | 63.2°N 26.0°W | 55 | — | |
| 1971-08-08 18:00 | EX | 64.5°N 21.0°W | 55 | — | |
| 1971-08-09 00:00 | EX | 66.0°N 16.0°W | 50 | — | |
| 1971-08-09 06:00 | EX | 67.3°N 12.0°W | 50 | — | |
| 1971-08-09 12:00 | EX | 67.8°N 8.0°W | 45 | — | |
| 1971-08-09 18:00 | EX | 68.0°N 4.0°W | 45 | — | |
| 1971-08-10 00:00 | EX | 67.8°N 0.0°E | 40 | — | |
| 1971-08-10 06:00 | EX | 67.4°N 4.0°E | 40 | — | |
| 1971-08-10 12:00 | EX | 67.0°N 8.0°E | 35 | — | |
| 1971-08-10 18:00 | EX | 66.7°N 10.0°E | 35 | — | |
| 1971-08-11 00:00 | EX | 66.6°N 11.0°E | 30 | — | |
| 1971-08-11 06:00 | EX | 66.8°N 9.0°E | 30 | — | |
| 1971-08-11 12:00 | EX | 67.0°N 6.0°E | 30 | — | |
| 1971-08-11 18:00 | EX | 67.2°N 2.0°E | 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.