However , even though it was determined Deciding that the wing was destroyed Destroying by `` cycles of reverse bending Motion '' or `` flutter '' , the investigation Criminal_investigation failed to determine Deciding how the flutter Motion was caused Causation , and the investigation Criminal_investigation stalled Change_event_time .

This rescheduling Change_event_time was to avoid Preventing_or_letting clashes Hostile_encounter between Ashes series in Australia and the Cricket World Cup , both previously held Hold very close together in their four-year cycles .

Eyewall replacement cycles led to Causation fluctuations in the hurricane 's structure and intensity , but on October 16 , Gonzalo peaked Arriving with maximum sustained winds of 145 mph ( 230 km/h ) .

A violent tornado near Union City , Oklahoma was documented Recording in its entirety by chasers of the Tornado Intercept Project ( TIP ) in 1973 and visual observations led to Causation advancement in understanding of tornado structure and life cycles .

After turning Change northward in response Response to a weakening Cause_change_of_strength subtropical ridge , the typhoon underwent a series of eyewall replacement cycles that caused Causation it to weaken Cause_change_of_strength .

The hurricane moved Motion westward due to a high pressure ridge while undergoing two eyewall replacement cycles : the first was around peak intensity and was completed when the hurricane moved Motion over cooler waters , and the second was a brief cycle shortly after the hurricane began Process_start to weaken Cause_change_of_strength .