2024 tropical cyclone season · western North Pacific
Typhoon Shanshan Shanshan · WP112024
Typhoon Shanshan was tracked in the western North Pacific from 2024-08-20 to 2024-09-01 (13 days), peaking at 115 kt (H4) with a minimum pressure of 935 hPa. 198 archived forecasts from ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF, 107 km off on average.
- ATCF ID
- WP112024
- Basin
- western North Pacific
- Tracked
- 2024-08-20 → 2024-09-01 (13 days)
- Peak wind
- 115 kt · 59 m/s · H4
- Minimum pressure
- 935 hPa
- Archived forecasts
- 198
- Sources
- ECMWF · ECMWF ENS · GFS · GEFS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 63 (41) | 107 (37) | 158 (33) | 521 (12) |
| ECMWF ENS | 60 (41) | 116 (37) | 183 (33) | 597 (25) |
| GFS | 68 (39) | 135 (36) | 281 (32) | 806 (24) |
| GEFS | 70 (40) | 133 (36) | 265 (32) | 921 (24) |
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 |
|---|---|---|---|---|
| 2024-08-20 18Z | 15.2°N 145.5°E | 20 | 1007 | TD |
| 2024-08-21 00Z | 15.5°N 144.4°E | 20 | 1007 | TD |
| 2024-08-21 06Z | 16.2°N 143.5°E | 25 | 1003 | TD |
| 2024-08-21 12Z | 16.9°N 142.6°E | 35 | 998 | TS |
| 2024-08-21 18Z | 16.9°N 142.0°E | 35 | 997 | TS |
| 2024-08-22 00Z | 16.9°N 141.4°E | 40 | 995 | TS |
| 2024-08-22 06Z | 17.0°N 141.1°E | 45 | 994 | TS |
| 2024-08-22 12Z | 17.2°N 140.9°E | 50 | 993 | TS |
| 2024-08-22 18Z | 17.5°N 141.0°E | 55 | 991 | TS |
| 2024-08-23 00Z | 17.8°N 141.2°E | 55 | 990 | TS |
| 2024-08-23 06Z | 17.9°N 141.2°E | 60 | 988 | TS |
| 2024-08-23 12Z | 18.1°N 141.1°E | 65 | 985 | H1 |
| 2024-08-23 18Z | 18.7°N 141.4°E | 65 | 985 | H1 |
| 2024-08-24 00Z | 20.0°N 141.3°E | 65 | 985 | H1 |
| 2024-08-24 06Z | 21.4°N 141.0°E | 65 | 983 | H1 |
| 2024-08-24 12Z | 22.7°N 140.7°E | 65 | 982 | H1 |
| 2024-08-24 18Z | 24.0°N 140.0°E | 65 | 980 | H1 |
| 2024-08-25 00Z | 24.9°N 138.9°E | 65 | 979 | H1 |
| 2024-08-25 06Z | 25.8°N 137.9°E | 70 | 975 | H1 |
| 2024-08-25 12Z | 26.5°N 136.6°E | 75 | 974 | H1 |
| 2024-08-25 18Z | 26.9°N 135.0°E | 75 | 971 | H1 |
| 2024-08-26 00Z | 27.3°N 133.7°E | 70 | 976 | H1 |
| 2024-08-26 06Z | 27.5°N 132.8°E | 80 | 972 | H1 |
| 2024-08-26 12Z | 27.7°N 131.9°E | 90 | 966 | H2 |
| 2024-08-26 18Z | 28.0°N 131.1°E | 100 | 948 | H3 |
| 2024-08-27 00Z | 28.2°N 130.7°E | 105 | 943 | H3 |
| 2024-08-27 06Z | 28.4°N 130.5°E | 110 | 938 | H3 |
| 2024-08-27 12Z | 28.6°N 130.3°E | 115 | 935 | H4 |
| 2024-08-27 18Z | 29.0°N 130.1°E | 110 | 936 | H3 |
| 2024-08-28 00Z | 29.3°N 130.0°E | 110 | 936 | H3 |
| 2024-08-28 06Z | 30.0°N 130.0°E | 100 | 945 | H3 |
| 2024-08-28 12Z | 30.6°N 130.0°E | 95 | 949 | H2 |
| 2024-08-28 18Z | 31.3°N 130.0°E | 85 | 957 | H2 |
| 2024-08-29 00Z | 31.9°N 130.2°E | 75 | 966 | H1 |
| 2024-08-29 06Z | 32.7°N 130.5°E | 60 | 976 | TS |
| 2024-08-29 12Z | 33.3°N 130.8°E | 45 | 988 | TS |
| 2024-08-29 18Z | 33.5°N 131.1°E | 40 | 990 | TS |
| 2024-08-30 00Z | 33.7°N 131.4°E | 40 | 990 | TS |
| 2024-08-30 06Z | 33.9°N 132.2°E | 35 | 991 | TS |
| 2024-08-30 12Z | 34.1°N 133.1°E | 30 | 993 | TD |
| 2024-08-30 18Z | 34.1°N 134.4°E | 30 | 993 | TD |
| 2024-08-31 00Z | 33.6°N 135.5°E | 30 | 993 | TD |
| 2024-08-31 06Z | 33.4°N 136.3°E | 25 | 995 | TD |
| 2024-08-31 12Z | 33.1°N 137.2°E | 25 | 996 | TD |
| 2024-08-31 18Z | 33.0°N 137.1°E | 25 | 997 | TD |
| 2024-09-01 00Z | 33.2°N 136.8°E | 25 | 997 | TD |
| 2024-09-01 06Z | 33.9°N 136.9°E | 25 | 999 | TD |
| 2024-09-01 12Z | 35.0°N 136.4°E | 20 | 1000 | TD |
| 2024-09-01 18Z | 35.8°N 136.5°E | 15 | 1001 | TD |