Severe Tropical Cyclone Catastrophe Gillian was the second most powerful Influence of the 2013–14 Australian region cyclone season and the strongest Influence in the basin in four years .

While moving Motion near Christmas Island , Gillian downed Motion thousands of trees and damaged Damaging the roof of one of the oldest buildings on the island .

Unfavourable wind shear Destroying , land interaction Collaboration , and dry air prevented Preventing_or_letting much restrengthening , and for several days , Gillian was a weak tropical low Cause_change_of_position_on_a_scale .

On 21 March , Gillian again became Becoming a tropical cyclone as it moved Motion away from Indonesia .

On the next day , it passed Motion_directional just southeast of Christmas Island as an intensifying storm , and subsequently Gillian underwent rapid deepening Cause_change_of_strength .

Increased wind shear caused Causation the cyclone Catastrophe to rapidly weaken Cause_change_of_strength , and both BoM and JTWC discontinued Process_end advisories Warning on Gillian on 26 March .