Tropical Storm Calvin (1981)
Jul 4, 6:00 PM UTC – Jul 9, 12:00 AM UTC (4.3 days)
- Peak
- Tropical Storm
- Max sustained wind
- 50 mph (45 kt)
- Lowest pressure
- —
- Landfalls
- 0
Track
- Hurricane
- Tropical Storm
- Tropical Depression
- Other
- Large white-ringed dots: landfall
Every track point (18)
| UTC | Status | Position | Wind kt | mb | Note |
|---|---|---|---|---|---|
| 1981-07-04 18:00 | TD | 13.4°N 102.4°W | 30 | — | |
| 1981-07-05 00:00 | TD | 13.5°N 103.2°W | 30 | — | |
| 1981-07-05 06:00 | TD | 13.6°N 104.1°W | 30 | — | |
| 1981-07-05 12:00 | TS | 13.9°N 104.8°W | 40 | — | |
| 1981-07-05 18:00 | TS | 14.3°N 105.7°W | 45 | — | |
| 1981-07-06 00:00 | TS | 15.0°N 106.0°W | 40 | — | |
| 1981-07-06 06:00 | TS | 15.9°N 106.3°W | 35 | — | |
| 1981-07-06 12:00 | TS | 16.8°N 106.5°W | 35 | — | |
| 1981-07-06 18:00 | TS | 17.6°N 106.9°W | 35 | — | |
| 1981-07-07 00:00 | TS | 18.3°N 107.2°W | 35 | — | |
| 1981-07-07 06:00 | TS | 18.9°N 107.5°W | 35 | — | |
| 1981-07-07 12:00 | TS | 19.4°N 107.7°W | 35 | — | |
| 1981-07-07 18:00 | TS | 19.8°N 108.0°W | 40 | — | |
| 1981-07-08 00:00 | TS | 20.3°N 108.4°W | 40 | — | |
| 1981-07-08 06:00 | TS | 20.8°N 108.7°W | 40 | — | |
| 1981-07-08 12:00 | TS | 21.3°N 109.1°W | 35 | — | |
| 1981-07-08 18:00 | TD | 21.6°N 109.5°W | 30 | — | |
| 1981-07-09 00:00 | TD | 21.6°N 110.3°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.