2026 tropical cyclone season · Southern Hemisphere
Cyclone Unnamed SH18 SH18 · SH182026
Cyclone Unnamed SH18 was tracked in the Southern Hemisphere from 2026-01-28 to 2026-01-29 (2 days), peaking at 54 kt (TS) with a minimum pressure of 988 hPa. 18 archived forecasts from ECMWF, ECMWF ENS are verified against its best track.
- ATCF ID
- SH182026
- Basin
- Southern Hemisphere
- Tracked
- 2026-01-28 → 2026-01-29 (2 days)
- Peak wind
- 54 kt · 28 m/s · TS
- Minimum pressure
- 988 hPa
- Archived forecasts
- 18
- Sources
- ECMWF · ECMWF ENS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 109 (3) | — | — | — |
| ECMWF ENS | 75 (3) | — | — | — |
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 |
|---|---|---|---|---|
| 2026-01-28 06Z | 16.9°S 172.2°E | 35 | 998 | TS |
| 2026-01-28 12Z | 18.9°S 173.7°E | 39 | 998 | TS |
| 2026-01-28 18Z | 21.4°S 173.8°E | 54 | 995 | TS |
| 2026-01-29 00Z | 23.4°S 173.7°E | 54 | 988 | TS |
| 2026-01-29 06Z | 24.9°S 173.0°E | 45 | 991 | TS |
| 2026-01-29 12Z | 26.2°S 172.5°E | 39 | 996 | TS |
| 2026-01-29 18Z | 26.9°S 171.9°E | 35 | 997 | TS |