1971 AL season · AL171971 · Archived
Heidi
Archived record: full track, peak intensity, and the model guidance issued at the time.
Ant Rozetsky, Unsplash
- Peak intensity
- Tropical Storm
- Peak winds
- 63 mph
- Lowest pressure
- 996 mb
- Track points
- 17
Observed track
| Time (UTC) | Position | Winds | Pressure | Stage |
|---|---|---|---|---|
| Sep 15 00:00 | 45.5, -69.0 | 29 mph | 1002 mb | Tropical Depression |
| Sep 14 18:00 | 43.7, -68.7 | 46 mph | 998 mb | Tropical Storm |
| Sep 14 12:00 | 41.6, -68.8 | 58 mph | -- mb | Tropical Storm |
| Sep 14 06:00 | 39.4, -69.3 | 58 mph | -- mb | Tropical Storm |
| Sep 14 00:00 | 37.1, -69.9 | 63 mph | -- mb | Tropical Storm |
| Sep 13 18:00 | 35.3, -70.3 | 58 mph | 996 mb | Tropical Storm |
| Sep 13 12:00 | 33.8, -71.3 | 52 mph | 998 mb | Tropical Storm |
| Sep 13 06:00 | 32.7, -72.0 | 52 mph | -- mb | Tropical Storm |
| Sep 13 00:00 | 31.7, -72.8 | 52 mph | -- mb | Tropical Storm |
| Sep 12 18:00 | 30.8, -73.5 | 52 mph | 998 mb | Tropical Storm |
| Sep 12 12:00 | 30.0, -73.9 | 52 mph | 1001 mb | Tropical Storm |
| Sep 12 06:00 | 29.2, -74.0 | 46 mph | -- mb | Tropical Storm |
| Sep 12 00:00 | 28.6, -73.8 | 35 mph | 1006 mb | Tropical Depression |
| Sep 11 18:00 | 27.9, -73.3 | 35 mph | -- mb | Tropical Depression |
| Sep 11 12:00 | 27.5, -72.8 | 35 mph | -- mb | Tropical Depression |
| Sep 11 06:00 | 27.2, -72.3 | 35 mph | -- mb | Tropical Depression |
| Sep 11 00:00 | 27.1, -72.0 | 35 mph | -- mb | Tropical Depression |