FAA FAA-E-2806 REV B CHG NOTICE 5 PDF

Purpose. The primary mission of the TDWR is to enhance the safety of air travel through the timely detection and reporting of hazardous wind shear (6.2.23) in and near the terminal approach and departure zones of an airport. Specific sources of the hazardous wind shear which are to be detected are microbursts and gust fronts (6.2.22). The secondary mission to be met by the TDWR is to improve the management of air traffic in the terminal area through the forecast of gust front induced wind shifts (6.2.51) at the airport, detection of precipitation, and ultimately the detection of other hazardous weather phenomena including turbulence and tornadoes.