Subsequently , the storm Catastrophe began Process_start to undergo rapid deepening ; the small storm reached Arriving intense tropical cyclone status the next day before peaking in intensity .

Tracking generally west-southwestward , the storm entered Arriving a stage of rapid deepening on August 10 , despite forecasts of an only marginally favorable environment .

It became Becoming a tropical storm Catastrophe over the following day , and subsequently underwent Change rapid deepening Cause_change_of_strength to attain Getting hurricane Catastrophe status .

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 .

Favorable conditions allowed Preventing_or_letting Imbudo to intensify Cause_change_of_strength , gradually at first before undergoing rapid deepening on July 19 .

Late on August 5 , Genevieve re-intensified Cause_change_of_strength into a tropical storm Catastrophe , and intensified Cause_change_of_strength into a Category 1 hurricane on the next day when undergoing rapid deepening Cause_change_of_strength because of favorable conditions .

On October 18 , the hurricane began Process_start undergoing rapid deepening Cause_change_of_strength and , on the next day , reached an estimated peak intensity of 165 mph ( 270 km/h ) .

After starting Process_start a phase of rapid deepening Cause_change_of_strength , Kalunde attained Getting cyclone intensity the next day .