A tropical low was identified in the southern Gulf of Carpentaria on 1 December, moving steadily northwest.

Late on 4 December, the low reached tropical cyclone status, receiving the name Amelia as it moved west-southwest through the Timor Sea.

At 1400 UTC on 20 December, it made landfall near Gove at its peak intensity with winds of 85 km/h (55 mph) and a minimum pressure of 990 hPa.

Over the next few days, Chris moved generally westwards as it steadily deepened, steered by a strong anticyclone located south of the storm.

[3] The system would later become the strongest tropical cyclone on record in the South-West Indian Ocean at the time, with an estimated pressure of 898 hPa (mbar).

Despite moving over land, the system continued to organise and reached cyclone intensity at 18:00 UTC on 15 January, while the centre was located near Wadeye.

The storm, now named Bruno, continued to develop over the Joseph Bonaparte Gulf and reached an initial peak intensity with winds of 90 km/h (55 mph) and an estimated central pressure of 989 hPa (mbar) late on the 15th.

Bruno made another landfall again at about 07:00 UTC on 16 January, turning towards the southwest and steadily weakening, although it continued to produce gale-force winds as it moved through the West Kimberley.

Bruno reached its ultimate peak intensity at 15:00 UTC on 19 January, with winds of 90 km/h (55 mph) and an estimated central pressure of 980 hPa (mbar).

A weakened Bruno moved out to sea again the next day but the system made its final landfall south of Perth on January 22 and dissipated soon after.

Errol slowly intensified over the coming days, reaching its peak intensity on 15 January with winds of 100 km/h (60 mph) and an estimated central pressure of 980 hPa (mbar) as it recurved towards the southeast.

Abigail reached its highest intensity in the Australian region on 1 February with winds of 120 km/h (75 mph) and an estimated central pressure of 975 hPa (mbar), moving out of the basin immediately after.

Early on January 31, the low moved out to sea and quickly redeveloped before once again turning to the southwest and nearing the coast.

Just before it made its second landfall near Port Hedland, Graham peaked with winds of 100 km/h (60 mph) and a minimum central pressure of 980 hPa (mbar).