Summary
A weak tropical low became evident in an active monsoon trough to the north of Western Australia late on 26 December. The tropical low initially drifted west and then moved in a south southwest direction reaching tropical cyclone intensity on 29 December. Mitchell quickly reached a peak intensity of 45 knots (kn) (83 kilometres per hour (km/h)) at 0600 Universal Time Coordinated (1400 AWST=UTC + 8 hours) 29 December which was maintained through until 0600 UTC 29 December. Mitchell continued on a southerly track and weakened below tropical cyclone strength by 0600 UTC 30 December well offshore. Mitchell did not impact the Australian mainland.
For more information see the TC Mitchell Report (pdf).