2026 tropical cyclone season · North Indian Ocean
Cyclone Unnamed IO01 IO01 · IO012026
Cyclone Unnamed IO01 was tracked in the North Indian Ocean from 2026-09-22 to 2026-09-24 (1 days), peaking at 45 kt (TS) with a minimum pressure of 987 hPa. 19 archived forecasts from ECMWF, ECMWF ENS are verified against its best track.
- ATCF ID
- IO012026
- Basin
- North Indian Ocean
- Tracked
- 2026-09-22 → 2026-09-24 (1 days)
- Peak wind
- 45 kt · 23 m/s · TS
- Minimum pressure
- 987 hPa
- Archived forecasts
- 19
- Sources
- ECMWF · ECMWF ENS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 45 (2) | — | — | — |
| ECMWF ENS | 48 (2) | — | — | — |
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 |
|---|---|---|---|---|
| 2026-09-22 18Z | 17.6°N 84.8°E | 35 | 991 | TS |
| 2026-09-23 00Z | 17.6°N 84.9°E | 39 | 990 | TS |
| 2026-09-23 06Z | 17.8°N 84.6°E | 45 | 990 | TS |
| 2026-09-23 12Z | 17.8°N 84.0°E | 45 | 990 | TS |
| 2026-09-23 18Z | 17.8°N 83.7°E | 39 | 995 | TS |
| 2026-09-24 00Z | 18.1°N 83.7°E | 35 | 987 | TS |