Severe Tropical Cyclone Wallace

Western Australian Regional Office



Track of Tropical Cyclone Wallace

A low formed about 600 kilometres to the north of Darwin on the 3rd of April and moved towards the southwest. The low developed on the 4th and a Tropical Cyclone Watch was issued for coastal parts between Kalumburu and Cockatoo Island at 9:25am AWST on the 4th of April. The low continued to develop on the 5th and a Tropical Cyclone Warning was issued for coastal parts between Kalumburu and Cockatoo Island at 9am AWST on the 5th of April. The Tropical Cyclone Watch was extended to Beagle Bay, not including Derby.

The low was named Tropical Cyclone Wallace at 2am AWST on the 6th of April when it was located about 340 kilometres to the north northwest of Kalumburu. Wallace intensified slowly as it continued on a steady west southwest track.

As Wallace tracked away from the Western Australia coastline, Tropical Cyclone Advices were cancelled at 9am AWST on the 6th of April.

Wallace reached category 2 intensity at 5am AWST on the 7th of April and then briefly intensified to category three intensity from late evening on the 8th of April until early morning on the 9th of April. Wallace then began to weaken in an unfavourable environment and was below tropical cyclone intensity at 8 am AWST on the 10th of April, when it was located about 600 kilometres north north-northwest of Exmouth.

The remnant tropical low continued to track towards the west over open waters.

Severe Tropical Cyclone Wallace was the eighth tropical cyclone in the Australian region and the third off the northwest Western Australia coast for the 2018/19 season.

**All information relating to intensity and track is preliminary information based on operational estimates and subject to change following post analysis.**



Extreme values during cyclone event (estimated)
Note that these values may be changed on the receipt of later information
Maximum Category: 3
Maximum sustained wind speed: 120 km/h
Maximum wind gust: 170 km/h
Lowest central pressure: 980 hPa