On a Sunday afternoon, a violent thunderstorm, with high winds between 75 and 80 mph, collapsed a tower crane and killed one innocent person and injured many others. The tower crane collapse extensive property damage to an apartment complex near the 5 story, concrete parking garage construction site. The construction company and owner claimed the tower crane was properly stowed for the weekend. The tower crane had been in service at the construction site for 15 months prior to the failure event. OSHA cited the company with numerous safety violations. Why did the tower crane collapse during the thunderstorm?