B787-800
Flight Attendant Current
Flight Attendant Airline Total 49; Flight Attendant Number Of Acft Qualified On 6; Flight Attendant Total 49; Flight Attendant Type 100
Distraction; Situational Awareness
Flight Deck / Cabin / Aircraft Event Other / Unknown; Inflight Event / Encounter Weather / Turbulence
Environment - Non Weather Related; Weather; Human Factors
I was the purser and was in the forward cabin. Approximately 30 minutes before landing; the Captain advised we would be entering an area of some turbulence. The seatbelt sign went on and I announced for passengers to take their seats and fasten seat belts. The Flight Attendant's in the main cabin were finishing up their service and galley Flight Attendants were stowing carts. Suddenly; we had severe turbulence and then a lightning strike and loud bang. I ran for my seat and made another PA. The Flight Attendant's in the back galley were thrown around and the carts flew up also. The serve turbulence lasted several minutes.  After we smoothed out; the Flight Attendant's got up and continued to put away galley equipment. There were no serious injuries; but the main cabin Flight Attendant's did get tossed up in the air and back. No passengers complained of any injury. The main cabin Flight Attendants could give a better description of the chaos in the back galley.
Flight Attendant reported a lightning strike and severe turbulence.