2025 tropical cyclone season · Southern Hemisphere
Cyclone Tam Tam · SH302025
Cyclone Tam was tracked in the Southern Hemisphere from 2025-04-14 to 2025-04-19 (5 days), peaking at 51 kt (TS) with a minimum pressure of 984 hPa. 51 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track.
- ATCF ID
- SH302025
- Basin
- Southern Hemisphere
- Tracked
- 2025-04-14 → 2025-04-19 (5 days)
- Peak wind
- 51 kt · 26 m/s · TS
- Minimum pressure
- 984 hPa
- Archived forecasts
- 51
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 86 (4) | — | — | — |
| ECMWF ENS | 85 (3) | — | — | — |
| GFS | 65 (4) | — | — | — |
| GEFS | 67 (4) | — | — | — |
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 |
|---|---|---|---|---|
| 2025-04-14 06Z | 15.1°S 168.4°E | 35 | 999 | TS |
| 2025-04-14 12Z | 16.4°S 168.4°E | 39 | 998 | TS |
| 2025-04-14 18Z | 18.0°S 168.9°E | 39 | 996 | TS |
| 2025-04-15 00Z | 19.0°S 169.6°E | 45 | 994 | TS |
| 2025-04-15 06Z | 20.7°S 171.1°E | 45 | 988 | TS |
| 2025-04-15 12Z | 23.1°S 171.7°E | 51 | 986 | TS |
| 2025-04-15 18Z | 25.1°S 173.2°E | 51 | 986 | TS |
| 2025-04-16 00Z | 28.8°S 173.1°E | 51 | 984 | TS |