2025 tropical cyclone season · Southern Hemisphere
Cyclone Ivone Ivone · SH242025
Cyclone Ivone was tracked in the Southern Hemisphere from 2025-03-04 to 2025-03-15 (11 days), peaking at 51 kt (TS) with a minimum pressure of 989 hPa. 108 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF ENS, 113 km off on average.
- ATCF ID
- SH242025
- Basin
- Southern Hemisphere
- Tracked
- 2025-03-04 → 2025-03-15 (11 days)
- Peak wind
- 51 kt · 26 m/s · TS
- Minimum pressure
- 989 hPa
- Archived forecasts
- 108
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 187 (2) | 760 (1) | — | — |
| ECMWF ENS | 86 (18) | 113 (15) | 165 (12) | 347 (6) |
| GFS | 162 (22) | 210 (18) | 282 (14) | 223 (6) |
| GEFS | 140 (22) | 174 (18) | 226 (14) | 178 (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 |
|---|---|---|---|---|
| 2025-03-08 06Z | 11.9°S 84.7°E | 35 | 998 | TS |
| 2025-03-08 12Z | 12.1°S 84.6°E | 35 | 996 | TS |
| 2025-03-08 18Z | 13.1°S 83.9°E | 39 | 996 | TS |
| 2025-03-09 00Z | 13.6°S 83.5°E | 39 | 996 | TS |
| 2025-03-09 06Z | 15.2°S 84.1°E | 45 | 993 | TS |
| 2025-03-09 12Z | 16.0°S 83.9°E | 45 | 993 | TS |
| 2025-03-09 18Z | 17.4°S 83.1°E | 51 | 993 | TS |
| 2025-03-10 00Z | 17.9°S 82.7°E | 51 | 991 | TS |
| 2025-03-10 06Z | 19.2°S 82.2°E | 45 | 993 | TS |
| 2025-03-10 12Z | 20.0°S 81.6°E | 45 | 989 | TS |
| 2025-03-10 18Z | 20.2°S 81.0°E | 45 | 996 | TS |
| 2025-03-11 00Z | 20.2°S 79.9°E | 45 | 998 | TS |
| 2025-03-11 06Z | 20.3°S 79.1°E | 45 | 992 | TS |
| 2025-03-11 12Z | 20.1°S 78.0°E | 45 | 999 | TS |
| 2025-03-11 18Z | 19.8°S 77.0°E | 45 | 990 | TS |
| 2025-03-12 00Z | 19.7°S 75.5°E | 39 | 997 | TS |
| 2025-03-12 06Z | 19.5°S 74.3°E | 39 | 997 | TS |
| 2025-03-12 12Z | 19.7°S 72.9°E | 35 | 999 | TS |
| 2025-03-12 18Z | 20.2°S 71.0°E | 35 | 998 | TS |
| 2025-03-13 00Z | 21.3°S 70.0°E | 35 | 996 | TS |
| 2025-03-13 06Z | 21.8°S 68.4°E | 35 | 996 | TS |
| 2025-03-13 12Z | 22.9°S 67.9°E | 35 | 998 | TS |
| 2025-03-13 18Z | 23.8°S 66.7°E | 35 | 994 | TS |
| 2025-03-14 00Z | 24.3°S 65.9°E | 35 | 993 | TS |
| 2025-03-14 06Z | 24.5°S 65.4°E | 35 | 992 | TS |
| 2025-03-14 12Z | 24.7°S 65.7°E | 35 | 992 | TS |