An approaching trough weakened the cyclone and turned it to the southeast, and on 8 April, Inigo dissipated after making landfall on Western Australia, as a minimal tropical storm.

On 29 March, a low-level circulation was visible, though significant tropical development was prevented due to wind shear and land interaction with islands in the Indonesian archipelago.

On 1 April, wind shear decreased as the system crossed into the Savu Sea, and the storm developed into a tropical cyclone to the northeast of Sumba.

[2] At 1200 UTC on 1 April, the Joint Typhoon Warning Center (JTWC) issued its first advisory on the system, classifying it as Tropical Cyclone 26S.

At 0000 UTC on 2 April, the Bureau of Meteorology (BOM) warning centre in Perth classified the system as Tropical Cyclone Inigo.

An eye featured gradually organised,[2] and early on 3 April, the BOM classified Inigo as a severe tropical cyclone, with winds of 80 mph (130 km/h).

Late on 4 April, an approaching upper-level trough increased wind shear over the system, which caused a steady weakening trend.

[2] 905 hPa (26.72 inHg) The precursor tropical disturbance dropped heavy rainfall in eastern Indonesia;[3] on the island of Flores, Larantuka recorded 223 mm (8.8 in) in a 24-hour period.

The Indonesian representative to the Tropical Cyclone Committee of the World Meteorological Organization in 2004 reported the death toll related to the disaster in Indonesia as 58 fatalities.

[2] Inigo moved ashore on Australia as a weak tropical cyclone, though several locations reported winds near gale force.