2023 tropical cyclone season · North Atlantic
Hurricane Unnamed AL21 AL21 · AL212023
Hurricane Unnamed AL21 was tracked in the North Atlantic from 2023-10-23 to 2023-10-24 (1 days), peaking at 25 kt (TD) with a minimum pressure of 1007 hPa. 34 archived forecasts from NHC, ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track.
- ATCF ID
- AL212023
- Basin
- North Atlantic
- Tracked
- 2023-10-23 → 2023-10-24 (1 days)
- Peak wind
- 25 kt · 13 m/s · TD
- Minimum pressure
- 1007 hPa
- Archived forecasts
- 34
- Sources
- NHC · ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
No forecast of this storm has been verified yet.
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 |
|---|---|---|---|---|
| 2023-10-23 12Z | 11.4°N 82.6°W | 25 | 1007 | TD |
| 2023-10-23 18Z | 11.5°N 83.2°W | 25 | 1007 | TD |
| 2023-10-24 00Z | 12.2°N 83.4°W | 25 | 1007 | TD |
| 2023-10-24 06Z | 13.0°N 83.8°W | 25 | 1007 | TD |
| 2023-10-24 12Z | 13.5°N 84.4°W | 20 | 1007 | TD |