A low that formed off the Top End on 27 January moved to the west southwest and developed, reaching cyclone intensity on 28 January. On 31 January Dean began to track to the south southeast crossing the Pilbara coast about 50 km east of Port Hedland as an intense cyclone on the morning of 1 February. This followed the crossing of Severe TC Amy east of Port Hedland just three weeks earlier.
Two men were lost overboard from a Taiwanese fishing boat west of Broome.
Extensive damage resulted at Port Hedland, while Goldsworthy, Marble Bar and Mt Newman all suffered wind damage. Flooding between Port Hedland and Mt Newman caused damage to the roads and the railway line. Total damage and industrial losses due to Dean were estimated to be about $20 million.
For more details see the TC Dean Report (pdf)