2024 tropical cyclone season · North Atlantic
Hurricane Isaac Isaac · AL102024
Hurricane Isaac was tracked in the North Atlantic from 2024-09-24 to 2024-10-03 (9 days), peaking at 90 kt (H2) with a minimum pressure of 963 hPa. 113 archived forecasts from NHC, ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF, 69 km off on average.
- ATCF ID
- AL102024
- Basin
- North Atlantic
- Tracked
- 2024-09-24 → 2024-10-03 (9 days)
- Peak wind
- 90 kt · 46 m/s · H2
- Minimum pressure
- 963 hPa
- Archived forecasts
- 113
- Sources
- NHC · ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| NHC | 48 (13) | 86 (9) | 185 (5) | — |
| ECMWF | 37 (13) | 69 (9) | 105 (5) | — |
| ECMWF ENS | 40 (14) | 81 (10) | 113 (6) | — |
| GFS | 49 (14) | 88 (10) | 145 (6) | — |
| GEFS | 46 (14) | 78 (10) | 70 (6) | — |
Mean great-circle distance to the best track at each lead time, counted while the system was a tropical or subtropical cyclone; the number of cases is in brackets.
Best track
Six-hourly positions of the US best track (JTWC / NHC, one-minute winds); grades on the Saffir–Simpson scale.
| Time (UTC) | Position | Wind (kt) | Pressure (hPa) | Grade |
|---|---|---|---|---|
| 2024-09-24 12Z | 38.7°N 58.4°W | 40 | 1003 | TS |
| 2024-09-24 18Z | 38.6°N 58.6°W | 40 | 1002 | TS |
| 2024-09-25 00Z | 38.1°N 58.8°W | 45 | 998 | TS |
| 2024-09-25 06Z | 37.3°N 58.5°W | 45 | 998 | TS |
| 2024-09-25 12Z | 37.0°N 57.2°W | 45 | 998 | TS |
| 2024-09-25 18Z | 36.9°N 55.7°W | 45 | 998 | TS |
| 2024-09-26 00Z | 37.0°N 54.5°W | 45 | 997 | TS |
| 2024-09-26 06Z | 37.1°N 53.4°W | 45 | 997 | TS |
| 2024-09-26 12Z | 37.2°N 52.3°W | 45 | 997 | TS |
| 2024-09-26 18Z | 37.3°N 51.2°W | 50 | 992 | TS |
| 2024-09-27 00Z | 37.2°N 50.1°W | 55 | 988 | TS |
| 2024-09-27 06Z | 37.1°N 49.1°W | 60 | 985 | TS |
| 2024-09-27 12Z | 37.1°N 47.7°W | 65 | 981 | H1 |
| 2024-09-27 18Z | 37.5°N 46.2°W | 75 | 976 | H1 |
| 2024-09-28 00Z | 38.0°N 44.4°W | 85 | 965 | H2 |
| 2024-09-28 06Z | 38.8°N 42.3°W | 90 | 963 | H2 |
| 2024-09-28 12Z | 39.7°N 40.4°W | 90 | 963 | H2 |
| 2024-09-28 18Z | 40.6°N 39.1°W | 85 | 965 | H2 |
| 2024-09-29 00Z | 41.5°N 38.0°W | 75 | 967 | H1 |
| 2024-09-29 06Z | 42.3°N 37.0°W | 70 | 969 | H1 |
| 2024-09-29 12Z | 43.0°N 36.1°W | 65 | 971 | H1 |
| 2024-09-29 18Z | 43.7°N 35.1°W | 60 | 973 | TS |
| 2024-09-30 00Z | 44.1°N 33.8°W | 55 | 976 | TS |
| 2024-09-30 06Z | 44.4°N 32.0°W | 55 | 978 | TS |
| 2024-09-30 12Z | 44.7°N 30.1°W | 50 | 980 | TS |
| 2024-09-30 18Z | 45.2°N 28.0°W | 45 | 983 | TS |
| 2024-10-01 00Z | 46.1°N 26.3°W | 45 | 987 | TS |
| 2024-10-01 06Z | 47.0°N 25.1°W | 45 | 991 | TS |
| 2024-10-01 12Z | 47.8°N 24.4°W | 45 | 993 | TS |
| 2024-10-01 18Z | 48.4°N 23.7°W | 40 | 995 | TS |
| 2024-10-02 00Z | 49.1°N 23.0°W | 40 | 996 | TS |
| 2024-10-02 06Z | 49.7°N 22.5°W | 40 | 996 | TS |
| 2024-10-02 12Z | 50.4°N 22.1°W | 40 | 997 | TS |
| 2024-10-02 18Z | 51.2°N 21.6°W | 40 | 997 | TS |
| 2024-10-03 00Z | 51.9°N 21.0°W | 40 | 998 | TS |