2025 tropical cyclone season · eastern North Pacific
Hurricane Alvin Alvin · EP012025
Hurricane Alvin was tracked in the eastern North Pacific from 2025-05-28 to 2025-06-01 (4 days), peaking at 50 kt (TS) with a minimum pressure of 999 hPa. 87 archived forecasts from NHC, ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track.
- ATCF ID
- EP012025
- Basin
- eastern North Pacific
- Tracked
- 2025-05-28 → 2025-06-01 (4 days)
- Peak wind
- 50 kt · 26 m/s · TS
- Minimum pressure
- 999 hPa
- Archived forecasts
- 87
- Sources
- NHC · ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| NHC | 53 (6) | 95 (2) | — | — |
| ECMWF | 68 (6) | 94 (2) | — | — |
| ECMWF ENS | 62 (6) | 118 (2) | — | — |
| GFS | 72 (6) | 163 (2) | — | — |
| GEFS | 48 (6) | 91 (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 |
|---|---|---|---|---|
| 2025-05-28 18Z | 11.5°N 104.4°W | 30 | 1006 | TD |
| 2025-05-29 00Z | 12.4°N 104.9°W | 30 | 1006 | TD |
| 2025-05-29 06Z | 13.0°N 105.6°W | 30 | 1005 | TD |
| 2025-05-29 12Z | 13.7°N 106.2°W | 40 | 1003 | TS |
| 2025-05-29 18Z | 14.6°N 106.9°W | 50 | 999 | TS |
| 2025-05-30 00Z | 15.4°N 107.6°W | 50 | 999 | TS |
| 2025-05-30 06Z | 16.1°N 108.3°W | 45 | 1000 | TS |
| 2025-05-30 12Z | 16.9°N 108.7°W | 45 | 1001 | TS |
| 2025-05-30 18Z | 17.7°N 108.9°W | 45 | 1001 | TS |
| 2025-05-31 00Z | 18.7°N 109.0°W | 40 | 1003 | TS |
| 2025-05-31 06Z | 19.6°N 109.2°W | 35 | 1005 | TS |
| 2025-05-31 12Z | 20.4°N 109.5°W | 30 | 1006 | TD |
| 2025-05-31 18Z | 21.1°N 109.7°W | 30 | 1006 | TD |
| 2025-06-01 00Z | 21.8°N 109.7°W | 25 | 1007 | TD |
| 2025-06-01 06Z | 22.4°N 109.4°W | 25 | 1007 | TD |