The work reported included Terminal Doppler Weather Radar (TDWR), Air Surveillance Radar-9, Integrated Terminal Doppler Weather Radar Surveillance Systems (TASS). The staff members of the Weather Sensing Group have documented their studies in four major areas: Operational Systems (TDWR Operational Test and Evaluation results); Radar Operations (future airport weather surveillance requirements, a 'machine intelligent' gust front detection algorithm, microburst asymmetry study results, a shear-based microburst detection algorithm, and a hazard index for TWDR-detected microbursts); Signal Processing (coherent processing across multi-PRI waveforms, clutter filter design for multiple-PRT signals, and identification of anomalous propagation associated with thunderstorm outflows); and Analysis Methods (multiple-single Doppler wind analysis using NEXRAD data, and an adjoint method wind retrieval scheme).