OLIVIA

History

Severe Tropical Cyclone Olivia developed in early April 1996 from a convective area associated with the monsoon trough, initially identified as a low-pressure system north of Darwin on 2 April. The Bureau of Meteorology designated it Tropical Cyclone Olivia on 5 April as it tracked westward and then southwestward toward Western Australia. Olivia intensified rapidly, reaching a peak central pressure of 925 hPa with 10-minute sustained winds of 195 km/h by 9 April, classified as a Category 4 cyclone by the BOM.

On 10 April, while passing over Barrow Island at peak intensity, the cyclone produced a wind gust of 408 km/h — the highest non-tornadic wind gust ever recorded worldwide. Shortly afterward, Olivia made landfall near Mardie on the Pilbara coast, roughly 75 kilometres north-northwest of Pannawonica. The storm weakened rapidly over land and dissipated over the Great Australian Bight on 12 April.

Impacts were widespread. Offshore, large swells up to 21 metres toppled an oil drilling structure and damaged multiple platforms, disrupting roughly 800,000 barrels of oil production. In Pannawonica, 55 of 82 homes lost their roofs, ten people were injured overall, and the town lost power for several days. At Port Lincoln, sediment stirred by Olivia's remnants killed 60,000 farmed tuna worth approximately A$60 million. The name Olivia was subsequently retired from the Australian cyclone naming list.

Sources: Bureau of Meteorology report Wikipedia