Track map & timeline · Eastern Pacific · August 20–30, 1974
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 Ione (1974) was a Category 3 hurricane of the 1974 Eastern Pacific season. It formed on August 20, 1974, reached its peak of 115 mph (185 km/h) on August 24, 1974, and never made landfall. It rapidly intensified by 80 mph in 24 hours (to 115 mph on August 24, 1974). The storm lasted 10.3 days and travelled about 2,242 miles (3,608 km).
02 · Intensity
03 · Timeline
| Date · UTC | Status | Wind | Pressure | Position | Nearest place |
|---|---|---|---|---|---|
| Aug 20 00:00 | TD | 29 mph | — | 13.0°N 124.4°W | open ocean |
| Aug 20 06:00 | TD | 29 mph | — | 13.6°N 126.0°W | open ocean |
| Aug 20 12:00 | TD | 29 mph | — | 14.0°N 127.3°W | open ocean |
| Aug 20 18:00 | TS | 40 mph | — | 14.2°N 128.1°W | open ocean |
| Aug 21 00:00 | TS | 40 mph | — | 14.2°N 129.0°W | open ocean |
| Aug 21 06:00 | TS | 40 mph | — | 14.0°N 130.1°W | open ocean |
| Aug 21 12:00 | TS | 40 mph | — | 13.7°N 131.2°W | open ocean |
| Aug 21 18:00 | TD | 35 mph | — | 13.3°N 132.2°W | open ocean |
| Aug 22 00:00 | TD | 35 mph | — | 13.0°N 133.0°W | open ocean |
| Aug 22 06:00 | TD | 35 mph | — | 12.8°N 133.6°W | open ocean |
| Aug 22 12:00 | TD | 35 mph | — | 12.7°N 134.2°W | open ocean |
| Aug 22 18:00 | TD | 35 mph | — | 12.5°N 134.9°W | open ocean |
| Aug 23 00:00 | TD | 35 mph | — | 12.4°N 135.6°W | open ocean |
| Aug 23 06:00 | TD | 35 mph | — | 12.3°N 136.6°W | open ocean |
| Aug 23 12:00 | TD | 35 mph | — | 12.4°N 137.6°W | open ocean |
| Aug 23 18:00 | Cat 1 | 75 mph | — | 12.5°N 138.4°W | open ocean |
| Aug 24 00:00 | Cat 1 | 86 mph | — | 12.7°N 139.3°W | open ocean |
| Aug 24 06:00 | Cat 3 | 115 mph | — | 12.9°N 140.1°W | open ocean |
| Aug 24 12:00 | Cat 2 | 104 mph | — | 13.2°N 141.0°W | open ocean |
| Aug 24 18:00 | Cat 2 | 104 mph | — | 13.4°N 141.6°W | open ocean |
| Aug 25 00:00 | Cat 2 | 104 mph | — | 13.7°N 142.0°W | open ocean |
| Aug 25 06:00 | Cat 2 | 104 mph | — | 14.0°N 142.4°W | open ocean |
| Aug 25 12:00 | Cat 2 | 104 mph | — | 14.3°N 142.9°W | open ocean |
| Aug 25 18:00 | Cat 2 | 104 mph | — | 14.7°N 143.3°W | open ocean |
| Aug 26 00:00 | Cat 2 | 104 mph | — | 15.3°N 143.8°W | open ocean |
| Aug 26 06:00 | Cat 2 | 104 mph | — | 15.9°N 144.0°W | open ocean |
| Aug 26 12:00 | Cat 2 | 104 mph | — | 16.6°N 144.0°W | open ocean |
| Aug 26 18:00 | Cat 2 | 104 mph | — | 17.5°N 143.7°W | open ocean |
| Aug 27 00:00 | Cat 1 | 81 mph | — | 18.3°N 143.4°W | open ocean |
| Aug 27 06:00 | Cat 1 | 81 mph | — | 18.7°N 143.4°W | open ocean |
| Aug 27 12:00 | Cat 1 | 81 mph | — | 19.0°N 143.5°W | open ocean |
| Aug 27 18:00 | TS | 58 mph | — | 19.3°N 143.5°W | open ocean |
| Aug 28 00:00 | TD | 35 mph | — | 19.5°N 143.6°W | open ocean |
| Aug 28 06:00 | TD | 35 mph | — | 19.4°N 144.4°W | open ocean |
| Aug 28 12:00 | TD | 29 mph | — | 18.8°N 145.1°W | open ocean |
| Aug 28 18:00 | TD | 29 mph | — | 18.3°N 145.5°W | open ocean |
| Aug 29 00:00 | TD | 29 mph | — | 17.9°N 146.1°W | open ocean |
| Aug 29 06:00 | TD | 29 mph | — | 17.4°N 146.8°W | open ocean |
| Aug 29 12:00 | TD | 29 mph | — | 17.1°N 147.7°W | open ocean |
| Aug 29 18:00 | TD | 29 mph | — | 17.0°N 148.6°W | open ocean |
| Aug 30 00:00 | TD | 29 mph | — | 17.0°N 149.5°W | open ocean |
| Aug 30 06:00 | TD | 29 mph | — | 17.8°N 150.7°W | open ocean |
⬇ Download track data (CSV) · public-domain NOAA best track
Questions
No — the NOAA best-track record shows no landfall for Ione.
At its peak on August 24, 1974, Ione was a Category 3 hurricane with maximum sustained winds of 115 mph (185 km/h).
10.3 days, from August 20, 1974 to August 30, 1974, including 96 hours at hurricane strength (6 as a major hurricane). It travelled about 2,242 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.
This site was built by Digital Dynamics Kft.
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