In PLOWS, we will obtain and analyze detailed, high resolution observations of precipitation substructures using four mobile ground-based observing systems, the University of Alabama at Huntsville Mobile Integrated Profiling System, the Mobile Alabama X-band dual polarization radar, and the NCAR Mobile Integrated Sounding System, and the University of Missouri sounding system, along with the NCAR C-130 Aircraft equipped with microphysical probes and the Wyoming Cloud Doppler Radar and Cloud Lidar. We will also simulate the precipitation substructures using the Weather Research and Forecasting Model at high horizontal and vertical resolution.