Track map & timeline · Eastern Pacific · August 27–31, 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 Irwin (1981) was a tropical storm of the 1981 Eastern Pacific season. It formed on August 27, 1981, 133 mi SW of Ciudad Lázaro Cárdenas, Michoacán, Mexico, reached its peak of 52 mph (83 km/h) on August 28, 1981, and never made landfall. The storm lasted 3.5 days and travelled about 876 miles (1,409 km).
02 · Intensity
03 · Timeline
| Date · UTC | Status | Wind | Pressure | Position | Nearest place |
|---|---|---|---|---|---|
| Aug 27 18:00 | TD | 35 mph | — | 16.5°N 103.5°W | 133 mi SW of Ciudad Lázaro Cárdenas, Michoacán, Mexico |
| Aug 28 00:00 | TD | 35 mph | — | 17.2°N 103.9°W | 119 mi S of Tecomán, Colima, Mexico |
| Aug 28 06:00 | TD | 35 mph | — | 17.7°N 104.4°W | 91 mi SSW of Tecomán, Colima, Mexico |
| Aug 28 12:00 | TD | 35 mph | — | 18.4°N 104.9°W | 62 mi SW of Manzanillo, Colima, Mexico |
| Aug 28 18:00 | TS | 52 mph | — | 19.1°N 105.5°W | 62 mi W of Cihuatlán, Jalisco, Mexico |
| Aug 29 00:00 | TS | 52 mph | — | 19.8°N 106.1°W | 80 mi SW of Puerto Vallarta, Jalisco, Mexico |
| Aug 29 06:00 | TS | 40 mph | — | 20.5°N 106.7°W | 95 mi W of Puerto Vallarta, Jalisco, Mexico |
| Aug 29 12:00 | TS | 40 mph | — | 21.3°N 107.2°W | 124 mi W of San Blas, Nayarit, Mexico |
| Aug 29 18:00 | TS | 40 mph | — | 22.0°N 107.7°W | 118 mi SW of Mazatlán, Sinaloa, Mexico |
| Aug 30 00:00 | TD | 35 mph | — | 22.5°N 108.5°W | 86 mi ESE of San José del Cabo, Baja California Sur, Mexico |
| Aug 30 06:00 | TD | 35 mph | — | 23.1°N 109.2°W | 32 mi E of San José del Cabo, Baja California Sur, Mexico |
| Aug 30 12:00 | TD | 35 mph | — | 23.5°N 110.1°W | 40 mi NW of San José del Cabo, Baja California Sur, Mexico |
| Aug 30 18:00 | TD | 35 mph | — | 23.9°N 110.0°W | 26 mi SE of La Paz, Baja California Sur, Mexico |
| Aug 31 00:00 | TD | 35 mph | — | 24.0°N 112.0°W | 74 mi SSW of Ciudad Constitución, Baja California Sur, Mexico |
| Aug 31 06:00 | TD | 23 mph | — | 24.2°N 113.0°W | 102 mi SW of Ciudad Constitución, Baja California Sur, Mexico |
⬇ Download track data (CSV) · public-domain NOAA best track
Questions
No — the NOAA best-track record shows no landfall for Irwin.
At its peak on August 28, 1981, Irwin was a tropical storm with maximum sustained winds of 52 mph (83 km/h).
3.5 days, from August 27, 1981 to August 31, 1981. It travelled about 876 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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