2023 tropical cyclone season · North Indian Ocean
Cyclone Hamoon Hamoon · IO062023
Cyclone Hamoon was tracked in the North Indian Ocean from 2023-10-20 to 2023-10-25 (5 days), peaking at 90 kt (H2) with a minimum pressure of 970 hPa. 53 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF ENS, 208 km off on average.
- ATCF ID
- IO062023
- Basin
- North Indian Ocean
- Tracked
- 2023-10-20 → 2023-10-25 (5 days)
- Peak wind
- 90 kt · 46 m/s · H2
- Minimum pressure
- 970 hPa
- Archived forecasts
- 53
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 124 (5) | 202 (1) | — | — |
| ECMWF ENS | 119 (12) | 208 (8) | 326 (4) | — |
| GFS | 105 (5) | 93 (1) | — | — |
| GEFS | 102 (5) | 168 (1) | — | — |
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 |
|---|---|---|---|---|
| 2023-10-20 06Z | 12.4°N 88.6°E | 15 | 1010 | TD |
| 2023-10-20 12Z | 12.7°N 88.4°E | 15 | 1010 | TD |
| 2023-10-20 18Z | 12.8°N 88.0°E | 15 | — | TD |
| 2023-10-21 00Z | 13.2°N 87.5°E | 15 | — | TD |
| 2023-10-21 06Z | 13.6°N 87.1°E | 20 | 1008 | TD |
| 2023-10-21 12Z | 14.6°N 86.0°E | 25 | 1005 | TD |
| 2023-10-21 18Z | 15.2°N 85.9°E | 25 | 1001 | TD |
| 2023-10-22 00Z | 15.5°N 86.2°E | 30 | 999 | TD |
| 2023-10-22 06Z | 15.7°N 86.4°E | 30 | 999 | TD |
| 2023-10-22 12Z | 15.9°N 86.9°E | 30 | 997 | TD |
| 2023-10-22 18Z | 16.0°N 87.0°E | 30 | 997 | TD |
| 2023-10-23 00Z | 16.8°N 87.0°E | 30 | 997 | TD |
| 2023-10-23 06Z | 17.5°N 87.0°E | 45 | 999 | TS |
| 2023-10-23 12Z | 18.5°N 87.5°E | 45 | 997 | TS |
| 2023-10-23 18Z | 19.3°N 88.4°E | 55 | 994 | TS |
| 2023-10-24 00Z | 19.7°N 89.1°E | 75 | 982 | H1 |
| 2023-10-24 06Z | 20.4°N 90.4°E | 75 | 981 | H1 |
| 2023-10-24 12Z | 21.1°N 91.5°E | 90 | 970 | H2 |
| 2023-10-24 18Z | 20.1°N 90.0°E | 60 | 990 | TS |
| 2023-10-25 00Z | 22.2°N 92.1°E | 35 | 1004 | TS |
| 2023-10-25 06Z | 22.7°N 92.2°E | 25 | 1007 | TD |