Track map & timeline · Eastern Pacific · July 4–9, 1981
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 Calvin (1981) was a tropical storm of the 1981 Eastern Pacific season. It formed on July 4, 1981, 291 mi SW of Acapulco de Juárez, Guerrero, Mexico, reached its peak of 52 mph (83 km/h) on July 5, 1981, and never made landfall. The storm lasted 4.3 days and travelled about 855 miles (1,375 km).
02 · Intensity
03 · Timeline
| Date · UTC | Status | Wind | Pressure | Position | Nearest place |
|---|---|---|---|---|---|
| Jul 4 18:00 | TD | 35 mph | — | 13.4°N 102.4°W | open ocean |
| Jul 5 00:00 | TD | 35 mph | — | 13.5°N 103.2°W | open ocean |
| Jul 5 06:00 | TD | 35 mph | — | 13.6°N 104.1°W | open ocean |
| Jul 5 12:00 | TS | 46 mph | — | 13.9°N 104.8°W | open ocean |
| Jul 5 18:00 | TS | 52 mph | — | 14.3°N 105.7°W | open ocean |
| Jul 6 00:00 | TS | 46 mph | — | 15.0°N 106.0°W | open ocean |
| Jul 6 06:00 | TS | 40 mph | — | 15.9°N 106.3°W | open ocean |
| Jul 6 12:00 | TS | 40 mph | — | 16.8°N 106.5°W | open ocean |
| Jul 6 18:00 | TS | 40 mph | — | 17.6°N 106.9°W | open ocean |
| Jul 7 00:00 | TS | 40 mph | — | 18.3°N 107.2°W | 184 mi WSW of Cihuatlán, Jalisco, Mexico |
| Jul 7 06:00 | TS | 40 mph | — | 18.9°N 107.5°W | open ocean |
| Jul 7 12:00 | TS | 40 mph | — | 19.4°N 107.7°W | 181 mi WSW of Puerto Vallarta, Jalisco, Mexico |
| Jul 7 18:00 | TS | 46 mph | — | 19.8°N 108.0°W | 185 mi WSW of Bucerías, Nayarit, Mexico |
| Jul 8 00:00 | TS | 46 mph | — | 20.3°N 108.4°W | open ocean |
| Jul 8 06:00 | TS | 46 mph | — | 20.8°N 108.7°W | 164 mi SSE of Cabo San Lucas, Baja California Sur, Mexico |
| Jul 8 12:00 | TS | 40 mph | — | 21.3°N 109.1°W | 122 mi SSE of Cabo San Lucas, Baja California Sur, Mexico |
| Jul 8 18:00 | TD | 35 mph | — | 21.6°N 109.5°W | 93 mi SSE of Cabo San Lucas, Baja California Sur, Mexico |
| Jul 9 00:00 | TD | 29 mph | — | 21.6°N 110.3°W | 93 mi SSW of Cabo San Lucas, Baja California Sur, Mexico |
⬇ Download track data (CSV) · public-domain NOAA best track
Questions
No — the NOAA best-track record shows no landfall for Calvin.
At its peak on July 5, 1981, Calvin was a tropical storm with maximum sustained winds of 52 mph (83 km/h).
4.3 days, from July 4, 1981 to July 9, 1981. It travelled about 855 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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