Flight SQ321 emergency landing: Aviation analyst Alvin Lie explains turbulence scenarios

One person has been confirmed dead and multiple others injured, after a Singapore Airlines plane made an emergency landing in Bangkok's Suvarnabhumi Airport. Flight SQ321 was flying from London's Heathrow Airport to Singapore when it encountered severe turbulence and was diverted to the Thai capital. The Boeing plane was carrying 211 passengers and 18 crew. Thai authorities are set to hold a presser to address the incident. Mr Alvin Lie, an independent aviation analyst, shared more about different turbulence scenarios.