British Airways flight BA89 experienced moderate turbulence around 15 minutes before landing at Beijing Daxing Airport due to radar observations of convective weather. A serious injury to one crew member was reported after landing, prompting a review of the incident. The incident was resolved with the pilots taking action to avoid the weather, resulting in a turbulence event sufficient to cause injuries to unsecured cabin crew. Weather forecasts generally predict turbulence but cannot accurately predict specific instances, leading to the incident.British Airways flight BA89 experienced moderate turbulence around 15 minutes before landing at Beijing Daxing Airport due to radar observations of convective weather. A serious injury to one crew member was reported after landing, prompting a review of the incident. The incident was resolved with the pilots taking action to avoid the weather, resulting in a turbulence event sufficient to cause injuries to unsecured cabin crew. Weather forecasts generally predict turbulence but cannot accurately predict specific instances, leading to the incident.