Track map & timeline · Eastern Pacific · October 4–7, 1977
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
Hurricane Heather (1977) was a Category 1 hurricane of the 1977 Eastern Pacific season. It formed on October 4, 1977, 324 mi SW of Manzanillo, Colima, Mexico, reached its peak of 86 mph (139 km/h) on October 5, 1977, and never made landfall. It rapidly intensified by 46 mph in 24 hours (to 86 mph on October 5, 1977). The storm lasted 3.5 days and travelled about 1,150 miles (1,851 km).
02 · Intensity
03 · Timeline
| Date · UTC | Status | Wind | Pressure | Position | Nearest place |
|---|---|---|---|---|---|
| Oct 4 00:00 | TD | 35 mph | — | 15.3°N 107.2°W | open ocean |
| Oct 4 06:00 | TS | 40 mph | — | 15.8°N 108.2°W | open ocean |
| Oct 4 12:00 | TS | 40 mph | — | 16.4°N 109.1°W | open ocean |
| Oct 4 18:00 | TS | 52 mph | — | 17.0°N 110.0°W | open ocean |
| Oct 5 00:00 | TS | 63 mph | — | 17.9°N 111.1°W | open ocean |
| Oct 5 06:00 | Cat 1 | 75 mph | — | 18.8°N 112.1°W | open ocean |
| Oct 5 12:00 | Cat 1 | 86 mph | — | 20.0°N 113.2°W | open ocean |
| Oct 5 18:00 | Cat 1 | 86 mph | — | 20.5°N 114.0°W | open ocean |
| Oct 6 00:00 | Cat 1 | 75 mph | — | 20.9°N 114.3°W | open ocean |
| Oct 6 06:00 | Cat 1 | 75 mph | — | 22.4°N 114.8°W | open ocean |
| Oct 6 12:00 | Cat 1 | 75 mph | — | 23.7°N 115.8°W | open ocean |
| Oct 6 18:00 | TS | 52 mph | — | 24.8°N 116.8°W | open ocean |
| Oct 7 00:00 | TS | 52 mph | — | 25.9°N 117.0°W | open ocean |
| Oct 7 06:00 | TS | 40 mph | — | 27.0°N 116.8°W | 181 mi WSW of Guerrero Negro, Baja California Sur, Mexico |
| Oct 7 12:00 | TD | 29 mph | — | 27.9°N 116.4°W | 143 mi W of Guerrero Negro, Baja California Sur, Mexico |
⬇ Download track data (CSV) · public-domain NOAA best track
Questions
No — the NOAA best-track record shows no landfall for Heather.
At its peak on October 5, 1977, Heather was a Category 1 hurricane with maximum sustained winds of 86 mph (139 km/h).
3.5 days, from October 4, 1977 to October 7, 1977, including 36 hours at hurricane strength. It travelled about 1,150 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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