2024 tropical cyclone season · North Indian Ocean
Cyclone Asna Asna · IO022024
Cyclone Asna was tracked in the North Indian Ocean from 2024-08-25 to 2024-09-03 (9 days), peaking at 40 kt (TS) with a minimum pressure of 987 hPa. 89 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF, 52 km off on average.
- ATCF ID
- IO022024
- Basin
- North Indian Ocean
- Tracked
- 2024-08-25 → 2024-09-03 (9 days)
- Peak wind
- 40 kt · 21 m/s · TS
- Minimum pressure
- 987 hPa
- Archived forecasts
- 89
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 53 (10) | 52 (6) | 67 (2) | — |
| ECMWF ENS | 74 (18) | 94 (15) | 147 (10) | 142 (4) |
| GFS | 46 (11) | 118 (7) | 275 (3) | — |
| GEFS | 53 (11) | 117 (7) | 207 (3) | — |
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 |
|---|---|---|---|---|
| 2024-08-27 12Z | 24.3°N 70.3°E | 30 | 1000 | TD |
| 2024-08-27 18Z | 24.3°N 70.1°E | 30 | 1000 | TD |
| 2024-08-28 00Z | 24.3°N 69.9°E | 30 | 1000 | TD |
| 2024-08-28 06Z | 24.1°N 69.9°E | 30 | 999 | TD |
| 2024-08-28 12Z | 23.9°N 69.9°E | 30 | 998 | TD |
| 2024-08-28 18Z | 23.8°N 69.7°E | 30 | 997 | TD |
| 2024-08-29 00Z | 23.8°N 69.5°E | 30 | 996 | TD |
| 2024-08-29 06Z | 23.6°N 69.5°E | 30 | 992 | TD |
| 2024-08-29 12Z | 23.5°N 69.4°E | 35 | 989 | TS |
| 2024-08-29 18Z | 23.3°N 69.0°E | 35 | 989 | TS |
| 2024-08-30 00Z | 23.1°N 68.5°E | 40 | 987 | TS |
| 2024-08-30 06Z | 23.2°N 68.0°E | 40 | 987 | TS |
| 2024-08-30 12Z | 23.3°N 67.1°E | 40 | 988 | TS |
| 2024-08-30 18Z | 23.5°N 66.4°E | 40 | 991 | TS |
| 2024-08-31 00Z | 23.4°N 65.6°E | 40 | 990 | TS |
| 2024-08-31 06Z | 23.3°N 64.8°E | 35 | 995 | TS |
| 2024-08-31 12Z | 23.3°N 64.0°E | 40 | 992 | TS |
| 2024-08-31 18Z | 23.2°N 63.3°E | 40 | 993 | TS |
| 2024-09-01 00Z | 23.0°N 62.6°E | 40 | 992 | TS |
| 2024-09-01 06Z | 22.7°N 62.2°E | 40 | 992 | TS |
| 2024-09-01 12Z | 22.2°N 61.9°E | 30 | 991 | TD |
| 2024-09-01 18Z | 21.6°N 61.6°E | 25 | 989 | TD |
| 2024-09-02 00Z | 21.2°N 61.4°E | 25 | 989 | TD |
| 2024-09-02 06Z | 20.6°N 61.1°E | 25 | 990 | TD |
| 2024-09-02 12Z | 20.2°N 61.0°E | 25 | 990 | TD |
| 2024-09-02 18Z | 19.7°N 60.9°E | 20 | 993 | TD |
| 2024-09-03 00Z | 19.8°N 60.8°E | 15 | 995 | TD |
| 2024-09-03 06Z | 19.9°N 60.7°E | 15 | 995 | TD |