Flights were canceled and Will Rogers World Airport in Oklahoma City was even evacuated twice on Wednesday when severe storms approached the area. Passengers were taken to an underground pedestrian tunnel. A flash flood emergency was declared in Oklahoma City for the first time in history and more than 10,000 outages occurred across the state making the utility companies to confront to an unexpected emergency situation. Flood emergency was also declared for the cities of Moore, Tuttle and Mustang. A tiger safari in Tuttle had been damaged by severe weather. Dozens of homes were destroyed in Amber and Bridge Creek. A multi-vortex tornado that produced at least two twisters in Lincoln County. The severe weather manifestations are linked to the major climate changes that our century confronts.