Ione was a Cat 4 Atlantic tropical cyclone that existed from September 10 to September 27, 1955 (18 days). It reached peak winds of 138 mph (120 kt) and a minimum central pressure of 938 mb. The storm made one landfall on September 19 at 34.7°N, 76.7°W.
| Time (UTC) | Status | Lat | Lon | Winds (kt) | Pressure (mb) | Record |
|---|---|---|---|---|---|---|
| 1955-09-10 06:00 | TD | 13.60 | -41.40 | 25 | ||
| 1955-09-10 12:00 | TS | 14.00 | -43.00 | 35 | ||
| 1955-09-10 18:00 | TS | 14.40 | -44.60 | 35 | ||
| 1955-09-11 00:00 | TS | 14.80 | -46.20 | 35 | ||
| 1955-09-11 06:00 | TS | 15.10 | -47.80 | 35 | ||
| 1955-09-11 12:00 | TS | 15.20 | -49.30 | 35 | ||
| 1955-09-11 18:00 | TS | 14.90 | -50.80 | 35 | ||
| 1955-09-12 00:00 | TS | 14.60 | -52.10 | 35 | ||
| 1955-09-12 06:00 | TS | 14.30 | -53.40 | 35 | ||
| 1955-09-12 12:00 | TS | 14.00 | -54.60 | 35 | ||
| 1955-09-12 18:00 | TS | 14.00 | -55.80 | 35 | 1007 | |
| 1955-09-13 00:00 | TS | 14.40 | -56.90 | 35 | ||
| 1955-09-13 06:00 | TS | 14.90 | -58.00 | 35 | ||
| 1955-09-13 12:00 | TS | 15.50 | -58.80 | 35 | ||
| 1955-09-13 18:00 | TS | 16.10 | -59.30 | 40 | ||
| 1955-09-14 00:00 | TS | 16.70 | -59.70 | 45 | ||
| 1955-09-14 06:00 | TS | 17.30 | -60.10 | 45 | ||
| 1955-09-14 12:00 | TS | 17.90 | -60.60 | 50 | 1001 | |
| 1955-09-14 18:00 | TS | 18.50 | -61.40 | 50 | 1000 | |
| 1955-09-15 00:00 | TS | 19.30 | -62.30 | 55 | ||
| 1955-09-15 06:00 | HU | 20.60 | -63.30 | 65 | ||
| 1955-09-15 12:00 | HU | 21.90 | -64.40 | 70 | 990 | |
| 1955-09-15 18:00 | HU | 22.80 | -65.60 | 70 | ||
| 1955-09-16 00:00 | HU | 23.30 | -67.00 | 75 | ||
| 1955-09-16 06:00 | HU | 23.70 | -68.30 | 75 | ||
| 1955-09-16 12:00 | HU | 24.10 | -69.30 | 75 | 985 | |
| 1955-09-16 18:00 | HU | 24.60 | -70.20 | 80 | ||
| 1955-09-17 00:00 | HU | 25.10 | -71.10 | 85 | ||
| 1955-09-17 06:00 | HU | 25.70 | -71.90 | 90 | 971 | |
| 1955-09-17 12:00 | HU | 26.30 | -72.50 | 105 | 950 | |
| 1955-09-17 18:00 | HU | 27.00 | -73.20 | 120 | 938 | |
| 1955-09-18 00:00 | HU | 27.90 | -74.00 | 120 | ||
| 1955-09-18 06:00 | HU | 28.80 | -74.70 | 115 | ||
| 1955-09-18 12:00 | HU | 29.80 | -75.30 | 110 | 943 | |
| 1955-09-18 18:00 | HU | 31.20 | -75.80 | 105 | ||
| 1955-09-19 00:00 | HU | 32.60 | -76.10 | 100 | ||
| 1955-09-19 06:00 | HU | 33.80 | -76.50 | 95 | ||
| 1955-09-19 11:00 | HU | 34.70 | -76.70 | 90 | 955 | Landfall |
| 1955-09-19 12:00 | HU | 34.80 | -76.70 | 90 | 955 | |
| 1955-09-19 18:00 | HU | 35.30 | -76.70 | 75 | ||
| 1955-09-20 00:00 | HU | 36.00 | -76.40 | 65 | ||
| 1955-09-20 06:00 | HU | 36.60 | -75.70 | 65 | 976 | |
| 1955-09-20 12:00 | HU | 37.10 | -74.20 | 70 | ||
| 1955-09-20 18:00 | HU | 38.00 | -72.00 | 75 | 982 | |
| 1955-09-21 00:00 | HU | 39.30 | -68.30 | 80 | 976 | |
| 1955-09-21 06:00 | EX | 41.50 | -64.00 | 80 | ||
| 1955-09-21 12:00 | EX | 45.00 | -59.40 | 75 | ||
| 1955-09-21 18:00 | EX | 48.50 | -55.00 | 75 | ||
| 1955-09-22 00:00 | EX | 50.30 | -54.50 | 70 | ||
| 1955-09-22 06:00 | EX | 50.70 | -54.50 | 70 | ||
| 1955-09-22 12:00 | EX | 51.00 | -53.80 | 65 | ||
| 1955-09-22 18:00 | EX | 52.50 | -51.00 | 65 | ||
| 1955-09-23 00:00 | EX | 53.40 | -46.80 | 60 | ||
| 1955-09-23 06:00 | EX | 53.30 | -43.70 | 55 | ||
| 1955-09-23 12:00 | EX | 53.10 | -40.60 | 50 | ||
| 1955-09-23 18:00 | EX | 54.60 | -35.00 | 45 | ||
| 1955-09-24 00:00 | EX | 57.20 | -29.30 | 45 | ||
| 1955-09-24 06:00 | EX | 60.00 | -22.00 | 45 | ||
| 1955-09-24 12:00 | EX | 62.50 | -15.50 | 45 | ||
| 1955-09-24 18:00 | EX | 65.00 | -14.00 | 40 | ||
| 1955-09-25 00:00 | EX | 67.50 | -11.50 | 40 | ||
| 1955-09-25 06:00 | EX | 69.00 | -9.50 | 35 | ||
| 1955-09-25 12:00 | EX | 70.00 | -8.00 | 35 | ||
| 1955-09-25 18:00 | EX | 70.90 | -7.00 | 35 | ||
| 1955-09-26 00:00 | EX | 71.60 | -7.00 | 35 | ||
| 1955-09-26 06:00 | EX | 72.10 | -9.00 | 35 | ||
| 1955-09-26 12:00 | EX | 72.50 | -12.00 | 35 | ||
| 1955-09-26 18:00 | EX | 72.80 | -14.00 | 30 | ||
| 1955-09-27 00:00 | EX | 73.00 | -15.00 | 30 |
Source: NOAA National Hurricane Center HURDAT2 best-track database (nhc.noaa.gov/data). Data is in the public domain. Best-track positions and intensities are post-storm reanalysis estimates and may differ from real-time advisories.