AirAsia flight disappears during approach to Singapore . Pilot requested evacuation due to bad weather . ` ` Bad weather per se does not bring down aircraft , '' said CNN 's Richard Nelson . Thunderstorms may have been too high for plane to fly over .
AirAsia flight disappears during journey to Singapore . Pilots requested diversion due to bad weather . `` Bad weather per se does not bring down aircraft , '' says CNN 's Richard Quest . Thunderstorms could have been too high for plane to fly over .