AgI Seeding of Clouds Impact Investigation (ASCII) was one project in a series of multi-season field campaigns, all part of the Wyoming Weather Modification Pilot Program, aimed at studying randomized cloud seeding.  ASCII was conducted over the Sierra Madre mountain range in Southern Wyoming, and employed the use of the Wyoming King Air Aircraft, equipped with both a cloud radar and a cloud lidar, a dual-polarization Doppler on Wheels (DOW) scanning radar, a profiling Micro-Rain Radar (MRR), and a NCAR GPS Advanced Upper-Air Sounding  (GAUS) radiosonde system.