A weak tropical cyclone, Blossom formed on November 8 to the northwest of Cocos Islands.

It soon developed to become Cyclone Diane, before crossing to the South-West Indian Ocean basin on January 9.

About 80% of buildings in the mainland centres of Shute Harbour, Airlie Beach and Cannonvale were severely damaged.

[3] Like Tropical Cyclone Tracy that devastated Darwin on Christmas Eve 1974, Ada was small in diameter (estimated width 30 km) and damage from her path was limited to a comparatively small geographical area.

Before degenerating into a rainstorm Cyclone Ada travelled further inland to the Cathu State Forest (83 km north-west of Mackay behind the small Bruce Highway township of Calen) and caused extensive damage to the eucalypts, rainforest and pine plantations in that area.

It crossed the coast near Carnarvon, Western Australia on an unknown date, causing severe agricultural damage.

Peaking as a Category 1- equivalent hurricane, it executed a small counterclockwise loop before it was last noted on February 24.

Cyclone Dawn formed on February 10 in the Gulf of Carpentaria, before moving inland.

It caused flooding around the Pilbara region; however, it was unknown if there are reports of fatalities attributed to the cyclone.