On 7 January 2023, a fully secured passenger on a Boeing 737-800 very close to active convective cloud it was about to enter was forced against the arm rest of their seat during a momentary encounter with strong turbulence. Although feeling pain on the side of their body involved, they did not consider it indicated a significant consequence but when the pain subsequently continued, they sought a medical assessment which found two broken lower ribs at the impact site and attributed this serious injury to a change in lateral acceleration due to translational movement and yawing of the aircraft.