Strong convection is an important weather phenomenon impacting flight safety,and frequently causes sudden changes in meteorological elements.AMDAR data have high spatial and temporal resolution,which can provide vital information for the nowcasting of severe weather in airport terminal areas.This paper extracts the three-dimensional wind vector and temperature profiles,and produces the wind shear warning analysis diagram in the horizontal and vertical directions,using AMDAR data from the Baiyun Airport Terminal Area.The case study involves the strong convection on April 17,2011 in Guangdong Province,and the AMDAR data,together with multi-source information such as Doppler weather radar,satellite and sounding,are analyzed.The study results show that the three-dimensional early warning indication on the wind vector-time height profile of the AMDAR data has a guiding significance for nowcasting strong convection at the airport.When strong wind shear occurs below 1 km,the threat to aircraft take-off and landing is serious,and the vertical distribution of the horizontal wind direction from the AMDAR data is very serious.In addition,the echo characteristics in the strong divergence region of the Doppler weather radar are confirmed.The high spatial and temporal resolution ADMAR wind speed and temperature disturbance can reveal the wind shear and turbulence in the atmosphere.The real-time and intensive vertical observation information provided by the AMDAR data is helpful to develop the products of nowcasting and early warning,and to compensate for the shortage of sounding data.