2025 tropical cyclone season · western North Pacific
Typhoon Co-May Co-May · WP112025
Typhoon Co-May was tracked in the western North Pacific from 2025-07-22 to 2025-08-03 (12 days), peaking at 70 kt (H1) with a minimum pressure of 974 hPa. 171 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was GFS, 130 km off on average.
- ATCF ID
- WP112025
- Basin
- western North Pacific
- Tracked
- 2025-07-22 → 2025-08-03 (12 days)
- Peak wind
- 70 kt · 36 m/s · H1
- Minimum pressure
- 974 hPa
- Archived forecasts
- 171
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 83 (26) | 162 (19) | 227 (16) | 238 (3) |
| ECMWF ENS | 73 (26) | 172 (22) | 211 (17) | 491 (7) |
| GFS | 97 (34) | 130 (29) | 196 (22) | 338 (11) |
| GEFS | 87 (34) | 136 (30) | 162 (23) | 399 (8) |
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 |
|---|---|---|---|---|
| 2025-07-23 00Z | 18.8°N 120.5°E | 29 | 997 | TD |
| 2025-07-23 06Z | 17.9°N 119.6°E | 35 | 997 | TS |
| 2025-07-23 12Z | 17.9°N 118.8°E | 39 | 992 | TS |
| 2025-07-23 18Z | 16.9°N 118.0°E | 60 | 981 | TS |
| 2025-07-24 00Z | 16.2°N 118.6°E | 70 | 975 | H1 |
| 2025-07-24 06Z | 15.9°N 119.3°E | 70 | 974 | H1 |
| 2025-07-24 12Z | 16.1°N 119.5°E | 64 | 976 | H1 |
| 2025-07-24 18Z | 16.7°N 120.2°E | 60 | 980 | TS |
| 2025-07-25 00Z | 17.3°N 120.8°E | 45 | 989 | TS |
| 2025-07-25 06Z | 19.3°N 120.9°E | 45 | 986 | TS |
| 2025-07-25 12Z | 22.0°N 123.5°E | 35 | 997 | TS |
| 2025-07-25 18Z | 23.6°N 124.9°E | 29 | 997 | TD |
| 2025-07-26 00Z | 25.3°N 125.7°E | 25 | 997 | TD |
| 2025-07-26 06Z | 26.3°N 126.5°E | 25 | 994 | TD |
| 2025-07-26 12Z | 26.9°N 126.7°E | 25 | 996 | TD |
| 2025-07-26 18Z | 26.8°N 127.4°E | 25 | 994 | TD |
| 2025-07-27 00Z | 26.6°N 127.8°E | 25 | 993 | TD |
| 2025-07-27 06Z | 26.6°N 129.5°E | 29 | 990 | TD |
| 2025-07-27 12Z | 26.2°N 130.4°E | 39 | 986 | TS |
| 2025-07-27 18Z | 26.5°N 128.8°E | 35 | 986 | TS |
| 2025-07-28 00Z | 26.3°N 127.9°E | 35 | 988 | TS |
| 2025-07-28 06Z | 26.6°N 128.3°E | 35 | 987 | TS |
| 2025-07-28 12Z | 27.2°N 127.4°E | 29 | 992 | TD |
| 2025-07-28 18Z | 27.4°N 125.9°E | 32 | 989 | TD |
| 2025-07-29 00Z | 27.5°N 124.6°E | 35 | 986 | TS |
| 2025-07-29 06Z | 28.1°N 124.1°E | 35 | 984 | TS |
| 2025-07-29 12Z | 28.6°N 123.4°E | 39 | 982 | TS |
| 2025-07-29 18Z | 29.3°N 122.9°E | 39 | 981 | TS |
| 2025-07-30 00Z | 30.0°N 122.3°E | 39 | 980 | TS |
| 2025-07-30 06Z | 30.7°N 121.8°E | 39 | 981 | TS |
| 2025-07-30 12Z | 31.2°N 121.4°E | 35 | 979 | TS |
| 2025-07-30 18Z | 31.2°N 120.4°E | 29 | 988 | TD |
| 2025-07-31 00Z | 31.5°N 119.6°E | 29 | 990 | TD |
| 2025-07-31 06Z | 32.2°N 118.8°E | 25 | 991 | TD |
| 2025-07-31 12Z | 32.1°N 117.8°E | 25 | 993 | TD |
| 2025-07-31 18Z | 31.8°N 117.8°E | 25 | 994 | TD |
| 2025-08-01 00Z | 31.7°N 117.6°E | 25 | 996 | TD |
| 2025-08-01 06Z | 31.7°N 117.4°E | 25 | 996 | TD |
| 2025-08-01 12Z | 32.1°N 117.4°E | 19 | 997 | TD |
| 2025-08-01 18Z | 32.4°N 117.2°E | 19 | 998 | TD |