2026/2027 Australian cyclone season

Tropical Low 01U
01U was the first tropical low to be monitored by the Australian Bureau of Meteorology in the 2026/2027 season. A small, and weak low, 01U was formed from a persistent band of cloud cover over Christmas Island on September 30, and moved south. Encountering unfavourable conditions for development, 01U failed to gain strength and dissipated on October 3.

Tropical Cyclone Irvin
Irvin’s precursor low formed fairly close to land; around 100km west of Broome on October 8. The low drifted westerly, gathering strength. The low reached cyclone intensity at approximately noon on October 10, around 450km west of Broome, being called Cyclone Irvin. Irvin began weakening almost immediately as it moved into an area of unfavourable conditions, which ended up causing Irvin to be downgraded to a tropical low on October 11, after only being a cyclone for 18 hours. The now Ex-Tropical Cyclone Irvin drifted onto a more southwesterly path, failing to reintensify into a cyclone and dissipating just offshore of Exmouth on October 14.

Tropical Low 03U
03U was another weak tropical low, and had formed within the Timor Sea on October 19. It lasted just 12 hours as a tropical low and dissipated the following day.

Severe Tropical Cyclone Jade
The Australian Bureau of Meteorology began monitoring a tropical low within the Coral Sea on October 29. The low drifted very slowly southwest, moving into an area of very favourable development for a cyclone on November 2nd. Within the space of the next 36 hours from November 2, the low underwent explosive intensification, not only reaching cyclone intensity (and being named Cyclone Jade in the process), but reaching Category 5 intensity, having done so by noon on Nvember