Grant
2025-26 season · AU202526_03U
History
Tropical Cyclone Grant originated in the Australian region before crossing into the South-West Indian Ocean basin on 27 December, entering as a severe tropical storm at 06:00 UTC. Within 24 hours it had intensified to tropical cyclone strength, and by 00:00 UTC on 29 December it had undergone rapid intensification to reach intense tropical cyclone status, equivalent to a Category 3 hurricane on the Saffir-Simpson scale. At that point it was located approximately 1,300 kilometres southeast of Diego Garcia, making it the first major cyclone of the season in the South-West Indian Ocean basin. The Joint Typhoon Warning Center subsequently upgraded Grant to Category 4 intensity. The system tracked through the central part of the basin, remaining far from any landmass throughout its life. Grant dissipated in early January without making landfall and without causing any recorded impacts to populated areas.
Sources: Bureau of Meteorology report Wikipedia
View full track data (46 observations)
| Date/Time (UTC) | Category | Position | Pressure | Wind |
|---|---|---|---|---|
| 2025-12-15 18:00:00 | 1 | -12.4, 113.0 | 1006 hPa | 13 km/h |
| 2025-12-16 00:00:00 | 1 | -11.8, 112.8 | 1006 hPa | 15 km/h |
| 2025-12-16 06:00:00 | 1 | -11.4, 112.5 | 1006 hPa | 15 km/h |
| 2025-12-16 12:00:00 | 1 | -11.3, 113.1 | 1004 hPa | 15 km/h |
| 2025-12-16 18:00:00 | 1 | -11.3, 113.3 | 1004 hPa | 15 km/h |
| 2025-12-17 00:00:00 | 1 | -11.8, 113.1 | 1002 hPa | 15 km/h |
| 2025-12-17 06:00:00 | 1 | -12.1, 113.3 | 1002 hPa | 15 km/h |
| 2025-12-17 12:00:00 | 1 | -12.7, 112.7 | 1002 hPa | 15 km/h |
| 2025-12-17 18:00:00 | 1 | -12.5, 111.8 | 1002 hPa | 15 km/h |
| 2025-12-18 00:00:00 | 1 | -12.0, 110.9 | 998 hPa | 18 km/h |
| 2025-12-18 06:00:00 | 1 | -12.0, 110.2 | 999 hPa | 18 km/h |
| 2025-12-18 12:00:00 | 1 | -12.0, 109.4 | 998 hPa | 18 km/h |
| 2025-12-18 18:00:00 | 1 | -12.0, 108.9 | 999 hPa | 18 km/h |
| 2025-12-19 00:00:00 | 1 | -12.1, 108.3 | 998 hPa | 18 km/h |
| 2025-12-19 06:00:00 | 1 | -12.1, 107.9 | 997 hPa | 18 km/h |
| 2025-12-19 12:00:00 | 1 | -12.2, 107.8 | 997 hPa | 18 km/h |
| 2025-12-19 18:00:00 | 1 | -12.2, 107.6 | 998 hPa | 18 km/h |
| 2025-12-20 00:00:00 | 1 | -12.1, 107.3 | 998 hPa | 18 km/h |
| 2025-12-20 06:00:00 | 1 | -12.0, 106.9 | 998 hPa | 15 km/h |
| 2025-12-20 12:00:00 | 1 | -12.1, 106.3 | 998 hPa | 15 km/h |
| 2025-12-20 18:00:00 | 1 | -12.1, 105.6 | 998 hPa | 15 km/h |
| 2025-12-21 00:00:00 | 1 | -11.8, 104.8 | 999 hPa | 18 km/h |
| 2025-12-21 06:00:00 | 1 | -11.6, 103.8 | 998 hPa | 18 km/h |
| 2025-12-21 12:00:00 | 1 | -11.9, 103.0 | 999 hPa | 18 km/h |
| 2025-12-21 18:00:00 | 1 | -12.1, 102.7 | 997 hPa | 18 km/h |
| 2025-12-22 00:00:00 | 1 | -12.3, 102.4 | 999 hPa | 18 km/h |
| 2025-12-22 06:00:00 | 1 | -12.7, 102.0 | 999 hPa | 18 km/h |
| 2025-12-22 12:00:00 | 1 | -12.8, 101.1 | 998 hPa | 18 km/h |
| 2025-12-22 18:00:00 | 1 | -12.8, 100.7 | 998 hPa | 18 km/h |
| 2025-12-23 00:00:00 | 1 | -12.7, 100.3 | 995 hPa | 21 km/h |
| 2025-12-23 06:00:00 | 1 | -12.5, 99.7 | 996 hPa | 21 km/h |
| 2025-12-23 12:00:00 | 1 | -12.6, 99.3 | 998 hPa | 18 km/h |
| 2025-12-23 18:00:00 | 1 | -12.3, 99.0 | 996 hPa | 13 km/h |
| 2025-12-24 00:00:00 | 1 | -12.1, 98.6 | 995 hPa | 18 km/h |
| 2025-12-24 06:00:00 | 1 | -11.9, 98.2 | 995 hPa | 18 km/h |
| 2025-12-24 12:00:00 | 1 | -11.8, 97.9 | 996 hPa | 18 km/h |
| 2025-12-24 18:00:00 | 1 | -11.9, 97.3 | 996 hPa | 15 km/h |
| 2025-12-25 00:00:00 | 1 | -11.9, 96.7 | 996 hPa | 18 km/h |
| 2025-12-25 06:00:00 | 1 | -12.1, 95.8 | 995 hPa | 18 km/h |
| 2025-12-25 12:00:00 | 1 | -12.1, 94.9 | 994 hPa | 21 km/h |
| 2025-12-25 18:00:00 | 1 | -12.3, 94.3 | 992 hPa | 23 km/h |
| 2025-12-26 00:00:00 | 1 | -12.0, 93.5 | 990 hPa | 26 km/h |
| 2025-12-26 06:00:00 | 1 | -12.0, 92.4 | 990 hPa | 26 km/h |
| 2025-12-26 12:00:00 | 1 | -11.8, 91.7 | 990 hPa | 26 km/h |
| 2025-12-26 18:00:00 | 1 | -11.8, 90.8 | 987 hPa | 26 km/h |
| 2025-12-27 00:00:00 | 1 | -11.8, 90.0 | 987 hPa | 26 km/h |