Bianca
2024-25 season · AU202425_21U
History
Severe Tropical Cyclone Bianca developed from Tropical Low 21U, which the Bureau of Meteorology designated on 18 February 2025 in the southeastern Indian Ocean. The system gradually organised and strengthened over the following days, reaching its peak intensity on 25 February as a Category 4 severe tropical cyclone on the Australian scale, equivalent to Category 3 on the Saffir-Simpson scale. After achieving peak intensity, Bianca encountered increasing wind shear and cooler sea surface temperatures, which caused it to weaken rapidly. The cyclone dissipated on 27 February 2025 without making landfall. Bianca formed during a notably active period of the 2024–25 Australian region cyclone season, which was the first above-average season in nearly two decades and produced eight severe tropical cyclones in total.
Sources: Bureau of Meteorology report Wikipedia
View full track data (35 observations)
| Date/Time (UTC) | Category | Position | Pressure | Wind |
|---|---|---|---|---|
| 2025-02-19 00:00:00 | 1 | -12.1, 125.3 | 1006 hPa | 10 km/h |
| 2025-02-19 06:00:00 | 1 | -12.4, 124.4 | 1005 hPa | 10 km/h |
| 2025-02-19 12:00:00 | 1 | -12.5, 123.3 | 1005 hPa | 10 km/h |
| 2025-02-19 18:00:00 | 1 | -12.7, 122.2 | 1005 hPa | 13 km/h |
| 2025-02-20 00:00:00 | 1 | -13.1, 121.3 | 1005 hPa | 13 km/h |
| 2025-02-20 06:00:00 | 1 | -13.8, 120.0 | 1005 hPa | 10 km/h |
| 2025-02-20 12:00:00 | 1 | -13.9, 119.2 | 1005 hPa | 13 km/h |
| 2025-02-20 18:00:00 | 1 | -14.0, 118.2 | 1004 hPa | 13 km/h |
| 2025-02-21 00:00:00 | 1 | -14.7, 117.3 | 1006 hPa | 13 km/h |
| 2025-02-21 06:00:00 | 1 | -15.0, 116.2 | 1004 hPa | 13 km/h |
| 2025-02-21 12:00:00 | 1 | -15.1, 115.3 | 1007 hPa | 10 km/h |
| 2025-02-21 18:00:00 | 1 | -15.1, 113.9 | 1006 hPa | 10 km/h |
| 2025-02-22 00:00:00 | 1 | -15.0, 112.5 | 1005 hPa | 13 km/h |
| 2025-02-22 06:00:00 | 1 | -15.2, 111.7 | 1005 hPa | 13 km/h |
| 2025-02-22 12:00:00 | 1 | -15.3, 110.6 | 1005 hPa | 13 km/h |
| 2025-02-22 18:00:00 | 1 | -15.4, 109.6 | 1002 hPa | 13 km/h |
| 2025-02-23 00:00:00 | 1 | -16.0, 108.3 | 1000 hPa | 15 km/h |
| 2025-02-23 06:00:00 | 1 | -16.6, 107.3 | 997 hPa | 18 km/h |
| 2025-02-23 12:00:00 | 1 | -17.2, 106.1 | 995 hPa | 21 km/h |
| 2025-02-23 18:00:00 | 1 | -17.7, 105.3 | 993 hPa | 23 km/h |
| 2025-02-24 00:00:00 | 1 | -18.2, 104.6 | 991 hPa | 26 km/h |
| 2025-02-24 06:00:00 | 1 | -19.0, 103.6 | 989 hPa | 31 km/h |
| 2025-02-24 12:00:00 | 1 | -19.6, 103.1 | 980 hPa | 33 km/h |
| 2025-02-24 18:00:00 | 1 | -20.1, 102.9 | 975 hPa | 41 km/h |
| 2025-02-25 00:00:00 | 1 | -21.1, 102.5 | 954 hPa | 49 km/h |
| 2025-02-25 06:00:00 | 1 | -21.9, 102.1 | 967 hPa | 46 km/h |
| 2025-02-25 12:00:00 | 1 | -22.9, 102.1 | 967 hPa | 44 km/h |
| 2025-02-25 18:00:00 | 1 | -23.8, 102.2 | 972 hPa | 33 km/h |
| 2025-02-26 00:00:00 | 1 | -24.7, 102.4 | 991 hPa | 28 km/h |
| 2025-02-26 06:00:00 | 1 | -25.7, 102.9 | 993 hPa | 26 km/h |
| 2025-02-26 12:00:00 | 1 | -26.4, 103.8 | 1000 hPa | 21 km/h |
| 2025-02-26 18:00:00 | 1 | -26.6, 104.4 | 1002 hPa | 18 km/h |
| 2025-02-27 00:00:00 | 1 | -26.5, 103.9 | 1002 hPa | 18 km/h |
| 2025-02-27 06:00:00 | 1 | -25.8, 102.5 | 1008 hPa | 15 km/h |
| 2025-02-27 12:00:00 | 1 | -25.0, 101.8 | 1012 hPa | 13 km/h |