2024 tropical cyclone season · western North Pacific
Typhoon Ampil Ampil · WP082024
Typhoon Ampil was tracked in the western North Pacific from 2024-08-11 to 2024-08-21 (10 days), peaking at 110 kt (H3) with a minimum pressure of 939 hPa. 121 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF, 78 km off on average.
- ATCF ID
- WP082024
- Basin
- western North Pacific
- Tracked
- 2024-08-11 → 2024-08-21 (10 days)
- Peak wind
- 110 kt · 57 m/s · H3
- Minimum pressure
- 939 hPa
- Archived forecasts
- 121
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 55 (22) | 78 (18) | 91 (14) | 236 (3) |
| ECMWF ENS | 53 (22) | 80 (18) | 106 (14) | 182 (6) |
| GFS | 49 (20) | 96 (16) | 154 (12) | 361 (4) |
| GEFS | 61 (20) | 112 (16) | 190 (12) | 438 (4) |
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 |
|---|---|---|---|---|
| 2024-08-11 18Z | 22.3°N 135.7°E | 20 | 1007 | TD |
| 2024-08-12 00Z | 22.7°N 136.3°E | 25 | 1002 | TD |
| 2024-08-12 06Z | 23.1°N 136.9°E | 35 | 995 | TS |
| 2024-08-12 12Z | 23.6°N 137.5°E | 40 | 994 | TS |
| 2024-08-12 18Z | 24.0°N 137.9°E | 40 | 992 | TS |
| 2024-08-13 00Z | 24.4°N 138.1°E | 45 | 988 | TS |
| 2024-08-13 06Z | 24.9°N 138.6°E | 45 | 989 | TS |
| 2024-08-13 12Z | 25.3°N 139.1°E | 50 | 988 | TS |
| 2024-08-13 18Z | 25.7°N 139.7°E | 55 | 985 | TS |
| 2024-08-14 00Z | 26.1°N 140.3°E | 55 | 985 | TS |
| 2024-08-14 06Z | 26.7°N 141.0°E | 65 | 976 | H1 |
| 2024-08-14 12Z | 27.6°N 141.1°E | 70 | 973 | H1 |
| 2024-08-14 18Z | 28.5°N 141.2°E | 75 | 970 | H1 |
| 2024-08-15 00Z | 29.5°N 141.2°E | 80 | 963 | H1 |
| 2024-08-15 06Z | 30.5°N 141.1°E | 90 | 955 | H2 |
| 2024-08-15 12Z | 31.5°N 140.8°E | 95 | 952 | H2 |
| 2024-08-15 18Z | 32.5°N 140.8°E | 105 | 944 | H3 |
| 2024-08-16 00Z | 33.5°N 140.8°E | 110 | 939 | H3 |
| 2024-08-16 06Z | 34.1°N 141.2°E | 110 | 940 | H3 |
| 2024-08-16 12Z | 35.0°N 141.9°E | 105 | 942 | H3 |
| 2024-08-16 18Z | 35.8°N 142.9°E | 100 | 946 | H3 |
| 2024-08-17 00Z | 36.6°N 143.9°E | 90 | 954 | H2 |
| 2024-08-17 06Z | 37.2°N 145.7°E | 75 | 966 | H1 |
| 2024-08-17 12Z | 37.8°N 147.4°E | 70 | 970 | H1 |
| 2024-08-17 18Z | 38.7°N 149.9°E | 60 | 979 | TS |
| 2024-08-18 00Z | 39.7°N 152.8°E | 55 | 982 | TS |
| 2024-08-18 06Z | 40.6°N 155.5°E | 60 | 980 | TS |
| 2024-08-18 12Z | 42.0°N 158.3°E | 60 | 979 | TS |