2025 tropical cyclone season · Southern Hemisphere
Cyclone Courtney Courtney · SH272025
Cyclone Courtney was tracked in the Southern Hemisphere from 2025-03-22 to 2025-04-03 (12 days), peaking at 128 kt (H4) with a minimum pressure of 932 hPa. 136 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF, 60 km off on average.
- ATCF ID
- SH272025
- Basin
- Southern Hemisphere
- Tracked
- 2025-03-22 → 2025-04-03 (12 days)
- Peak wind
- 128 kt · 66 m/s · H4
- Minimum pressure
- 932 hPa
- Archived forecasts
- 136
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 39 (20) | 60 (20) | 88 (19) | 256 (7) |
| ECMWF ENS | 48 (27) | 66 (23) | 75 (20) | 272 (13) |
| GFS | 67 (29) | 108 (25) | 117 (21) | 267 (13) |
| GEFS | 71 (29) | 115 (25) | 147 (21) | 338 (13) |
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 |
|---|---|---|---|---|
| 2025-03-24 12Z | 16.6°S 111.0°E | 35 | 995 | TS |
| 2025-03-24 18Z | 16.6°S 110.5°E | 35 | 998 | TS |
| 2025-03-25 00Z | 16.7°S 110.0°E | 35 | 995 | TS |
| 2025-03-25 06Z | 16.8°S 109.1°E | 39 | 993 | TS |
| 2025-03-25 12Z | 17.0°S 108.2°E | 39 | 993 | TS |
| 2025-03-25 18Z | 17.3°S 106.8°E | 45 | 993 | TS |
| 2025-03-26 00Z | 17.8°S 105.3°E | 54 | 990 | TS |
| 2025-03-26 06Z | 18.0°S 104.1°E | 60 | 986 | TS |
| 2025-03-26 12Z | 17.7°S 103.1°E | 64 | 984 | H1 |
| 2025-03-26 18Z | 17.4°S 102.2°E | 70 | 980 | H1 |
| 2025-03-27 00Z | 17.0°S 101.1°E | 70 | 980 | H1 |
| 2025-03-27 06Z | 16.8°S 100.0°E | 80 | 973 | H1 |
| 2025-03-27 12Z | 16.8°S 99.1°E | 80 | 973 | H1 |
| 2025-03-27 18Z | 16.8°S 98.2°E | 84 | 969 | H2 |
| 2025-03-28 00Z | 16.8°S 97.3°E | 80 | 972 | H1 |
| 2025-03-28 06Z | 16.8°S 95.5°E | 80 | 972 | H1 |
| 2025-03-28 12Z | 17.2°S 94.6°E | 109 | 949 | H3 |
| 2025-03-28 18Z | 17.4°S 93.0°E | 115 | 948 | H4 |
| 2025-03-29 00Z | 17.7°S 91.9°E | 115 | 947 | H4 |
| 2025-03-29 06Z | 18.0°S 91.0°E | 119 | 942 | H4 |
| 2025-03-29 12Z | 18.7°S 90.1°E | 128 | 932 | H4 |
| 2025-03-29 18Z | 19.5°S 89.3°E | 124 | 939 | H4 |
| 2025-03-30 00Z | 20.2°S 88.9°E | 115 | 946 | H4 |
| 2025-03-30 06Z | 21.1°S 88.3°E | 99 | 961 | H3 |
| 2025-03-30 12Z | 22.0°S 88.0°E | 84 | 970 | H2 |
| 2025-03-30 18Z | 22.7°S 87.9°E | 70 | 980 | H1 |
| 2025-03-31 00Z | 23.1°S 88.2°E | 60 | 986 | TS |
| 2025-03-31 06Z | 24.0°S 88.5°E | 64 | 982 | H1 |
| 2025-03-31 12Z | 24.7°S 88.9°E | 60 | 984 | TS |
| 2025-03-31 18Z | 24.8°S 88.8°E | 54 | 986 | TS |
| 2025-04-01 00Z | 24.9°S 88.8°E | 51 | 988 | TS |
| 2025-04-01 06Z | 25.0°S 88.4°E | 45 | 993 | TS |
| 2025-04-01 12Z | 24.9°S 88.5°E | 39 | 998 | TS |