2026 tropical cyclone season · Southern Hemisphere
Cyclone Grant Grant · SH092026
Cyclone Grant was tracked in the Southern Hemisphere from 2025-12-14 to 2026-01-07 (24 days), peaking at 119 kt (H4) with a minimum pressure of 944 hPa. 151 archived forecasts from ECMWF, ECMWF ENS are verified against its best track; at 48 hours the closest was ECMWF ENS, 97 km off on average.
- ATCF ID
- SH092026
- Basin
- Southern Hemisphere
- Tracked
- 2025-12-14 → 2026-01-07 (24 days)
- Peak wind
- 119 kt · 61 m/s · H4
- Minimum pressure
- 944 hPa
- Archived forecasts
- 151
- Sources
- ECMWF · ECMWF ENS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 74 (6) | 114 (4) | 197 (2) | 395 (1) |
| ECMWF ENS | 63 (71) | 97 (68) | 141 (64) | 284 (57) |
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 |
|---|---|---|---|---|
| 2025-12-18 06Z | 12.2°S 110.4°E | 35 | 1001 | TS |
| 2025-12-18 12Z | 12.4°S 110.1°E | 35 | 1000 | TS |
| 2025-12-18 18Z | 12.2°S 109.2°E | 35 | 999 | TS |
| 2025-12-19 00Z | 12.5°S 108.9°E | 35 | 999 | TS |
| 2025-12-19 06Z | 12.5°S 107.8°E | 35 | 999 | TS |
| 2025-12-19 12Z | 12.2°S 108.1°E | 35 | 999 | TS |
| 2025-12-19 18Z | 12.1°S 107.5°E | 35 | 1000 | TS |
| 2025-12-20 00Z | 12.0°S 107.1°E | 39 | 997 | TS |
| 2025-12-20 06Z | 12.2°S 106.0°E | 39 | 997 | TS |
| 2025-12-20 12Z | 12.3°S 105.3°E | 39 | 997 | TS |
| 2025-12-20 18Z | 12.4°S 104.7°E | 35 | 999 | TS |
| 2025-12-21 00Z | 12.4°S 104.4°E | 45 | 994 | TS |
| 2025-12-21 06Z | 12.3°S 104.2°E | 45 | 994 | TS |
| 2025-12-21 12Z | 12.2°S 103.2°E | 45 | 994 | TS |
| 2025-12-21 18Z | 12.0°S 102.6°E | 39 | 997 | TS |
| 2025-12-22 00Z | 12.0°S 102.3°E | 39 | 996 | TS |
| 2025-12-22 06Z | 12.3°S 102.0°E | 39 | 996 | TS |
| 2025-12-22 12Z | 12.8°S 101.2°E | 35 | 997 | TS |
| 2025-12-22 18Z | 13.1°S 100.5°E | 39 | 997 | TS |
| 2025-12-23 00Z | 12.6°S 100.0°E | 39 | 997 | TS |
| 2025-12-23 06Z | 12.5°S 99.7°E | 45 | 995 | TS |
| 2025-12-23 12Z | 12.2°S 99.1°E | 39 | 997 | TS |
| 2025-12-23 18Z | 12.3°S 98.9°E | 35 | 998 | TS |
| 2025-12-24 00Z | 12.1°S 98.2°E | 39 | 997 | TS |
| 2025-12-24 06Z | 12.0°S 97.8°E | 39 | 997 | TS |
| 2025-12-24 12Z | 11.9°S 97.8°E | 39 | 996 | TS |
| 2025-12-24 18Z | 11.9°S 97.3°E | 39 | 996 | TS |
| 2025-12-25 00Z | 11.9°S 96.5°E | 45 | 995 | TS |
| 2025-12-25 06Z | 12.4°S 95.6°E | 45 | 995 | TS |
| 2025-12-25 12Z | 12.3°S 95.0°E | 45 | 995 | TS |
| 2025-12-25 18Z | 12.6°S 94.4°E | 45 | 995 | TS |
| 2025-12-26 00Z | 12.4°S 93.4°E | 51 | 993 | TS |
| 2025-12-26 06Z | 11.9°S 92.2°E | 51 | 994 | TS |
| 2025-12-26 12Z | 11.9°S 91.4°E | 54 | 993 | TS |
| 2025-12-26 18Z | 11.8°S 90.9°E | 60 | 989 | TS |
| 2025-12-27 00Z | 11.8°S 90.1°E | 60 | 989 | TS |
| 2025-12-27 06Z | 11.9°S 89.2°E | 60 | 989 | TS |
| 2025-12-27 12Z | 12.0°S 88.3°E | 60 | 990 | TS |
| 2025-12-27 18Z | 12.1°S 87.5°E | 64 | 987 | H1 |
| 2025-12-28 00Z | 12.3°S 86.7°E | 64 | 986 | H1 |
| 2025-12-28 06Z | 12.7°S 85.4°E | 74 | 980 | H1 |
| 2025-12-28 12Z | 13.1°S 84.6°E | 74 | 981 | H1 |
| 2025-12-28 18Z | 13.3°S 83.5°E | 80 | 978 | H1 |
| 2025-12-29 00Z | 13.5°S 82.5°E | 105 | 957 | H3 |
| 2025-12-29 06Z | 13.6°S 81.5°E | 115 | 948 | H4 |
| 2025-12-29 12Z | 13.7°S 80.5°E | 119 | 944 | H4 |
| 2025-12-29 18Z | 14.0°S 79.2°E | 115 | 949 | H4 |
| 2025-12-30 00Z | 14.3°S 78.3°E | 109 | 955 | H3 |
| 2025-12-30 06Z | 14.4°S 77.0°E | 119 | 950 | H4 |
| 2025-12-30 12Z | 14.7°S 75.6°E | 119 | 950 | H4 |
| 2025-12-30 18Z | 14.8°S 74.5°E | 109 | 955 | H3 |
| 2025-12-31 00Z | 15.0°S 73.1°E | 105 | 957 | H3 |
| 2025-12-31 06Z | 15.3°S 72.0°E | 99 | 958 | H3 |
| 2025-12-31 12Z | 15.7°S 69.6°E | 99 | 958 | H3 |
| 2025-12-31 18Z | 16.0°S 69.8°E | 80 | 978 | H1 |
| 2026-01-01 00Z | 16.2°S 69.1°E | 70 | 984 | H1 |
| 2026-01-01 06Z | 16.0°S 68.7°E | 60 | 989 | TS |
| 2026-01-01 12Z | 16.0°S 68.2°E | 51 | 993 | TS |
| 2026-01-01 18Z | 15.9°S 67.7°E | 35 | 997 | TS |
| 2026-01-02 00Z | 15.8°S 67.3°E | 35 | 994 | TS |
| 2026-01-02 06Z | 15.5°S 66.7°E | 35 | 998 | TS |
| 2026-01-02 12Z | 15.2°S 66.6°E | 35 | 1000 | TS |
| 2026-01-02 18Z | 15.0°S 66.0°E | 35 | 1001 | TS |
| 2026-01-03 00Z | 14.6°S 65.5°E | 35 | 1001 | TS |
| 2026-01-03 06Z | 14.7°S 64.6°E | 35 | 1002 | TS |
| 2026-01-03 12Z | 14.9°S 63.8°E | 35 | 1002 | TS |
| 2026-01-03 18Z | 15.3°S 63.6°E | 29 | 1002 | TD |
| 2026-01-04 00Z | 15.5°S 62.8°E | 29 | 1002 | TD |
| 2026-01-04 06Z | 15.4°S 61.4°E | 29 | 1006 | TD |
| 2026-01-04 12Z | 16.1°S 59.7°E | 29 | 1006 | TD |
| 2026-01-04 18Z | 16.3°S 58.4°E | 29 | 1005 | TD |
| 2026-01-05 00Z | 16.1°S 57.5°E | 29 | 1005 | TD |
| 2026-01-05 06Z | 16.7°S 56.0°E | 25 | 1005 | TD |
| 2026-01-05 12Z | 16.7°S 55.3°E | 25 | 1005 | TD |
| 2026-01-05 18Z | 16.9°S 54.3°E | 29 | 1005 | TD |
| 2026-01-06 00Z | 17.2°S 53.0°E | 29 | 1005 | TD |
| 2026-01-06 06Z | 17.2°S 52.1°E | 25 | 1007 | TD |
| 2026-01-06 12Z | 17.7°S 51.1°E | 25 | 1006 | TD |