Track map, landfall & timeline · Atlantic · September 11–15, 1971
TD TS Cat 1 2 3 4 5 · dashed = post-tropical / remnant low. Click any point or table row to jump there.
01 · The story
Tropical Storm Heidi (1971) was a tropical storm of the 1971 Atlantic season. It formed on September 11, 1971, 328 mi ENE of Nassau, Bahamas, reached its peak of 58 mph (93 km/h) and a minimum pressure of 995 mb on September 13, 1971, and made landfall 17 mi ESE of Belfast, Maine on September 14, 1971 as a tropical storm (46 mph). The storm lasted 3.5 days and travelled about 1,331 miles (2,141 km).
02 · Intensity
03 · Impact
| Landfall (UTC) | Where | Strength | Pressure |
|---|---|---|---|
| September 14, 1971 · 19:00 UTC | 17 mi ESE of Belfast, Maine | TS 46 mph | — |
04 · Timeline
| Date · UTC | Status | Wind | Pressure | Position | Nearest place |
|---|---|---|---|---|---|
| Sep 11 12:00 | TD | 35 mph | — | 27.5°N 72.8°W | open ocean |
| Sep 11 18:00 | TS | 40 mph | — | 27.9°N 73.3°W | open ocean |
| Sep 12 00:00 | TS | 40 mph | 1006 mb | 28.6°N 73.8°W | open ocean |
| Sep 12 06:00 | TS | 46 mph | — | 29.2°N 74.0°W | open ocean |
| Sep 12 12:00 | TS | 46 mph | 1001 mb | 30.0°N 73.9°W | open ocean |
| Sep 12 18:00 | TS | 52 mph | 998 mb | 30.8°N 73.5°W | open ocean |
| Sep 13 00:00 | TS | 52 mph | — | 31.7°N 72.8°W | open ocean |
| Sep 13 06:00 | TS | 52 mph | — | 32.6°N 72.1°W | open ocean |
| Sep 13 12:00 | TS | 52 mph | 998 mb | 33.6°N 71.4°W | open ocean |
| Sep 13 18:00 | TS | 58 mph | 996 mb | 35.2°N 70.6°W | open ocean |
| Sep 14 00:00 | TS | 58 mph | 995 mb | 37.1°N 69.9°W | open ocean |
| Sep 14 06:00 | TS | 58 mph | — | 39.4°N 69.3°W | 163 mi SSE of Harwich, Massachusetts |
| Sep 14 12:00 | TS | 52 mph | — | 41.6°N 68.8°W | 66 mi E of Harwich, Massachusetts |
| Sep 14 18:00 | TS | 46 mph | — | 43.7°N 68.7°W | 65 mi ESE of Brunswick, Maine |
| Sep 14 19:00 | TS LANDFALL | 46 mph | — | 44.3°N 68.7°W | 35 mi S of Bangor, Maine |
| Sep 15 00:00 | TD extratropical | 29 mph | 999 mb | 45.5°N 69.0°W | 50 mi NNW of Bangor, Maine |
⬇ Download track data (CSV) · public-domain NOAA best track
Questions
Heidi made landfall once: 17 mi ESE of Belfast, Maine on September 14, 1971 at 19:00 UTC, as a tropical storm with 46 mph winds.
At its peak on September 13, 1971, Heidi was a tropical storm with maximum sustained winds of 58 mph (93 km/h) and a central pressure of 995 mb. At its first landfall it was a tropical storm.
3.5 days, from September 11, 1971 to September 15, 1971. It travelled about 1,331 miles.
The 6-hourly positions, winds, pressure and wind radii are available as CSV on this page (track.csv) — they come from the NOAA National Hurricane Center's HURDAT2 database and are in the public domain.
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