Nature takes simple ingredients like wind, water and temperature and transforms them into something spectacular and powerful. "Wild Weather" reveals exactly how it does it. The only way to truly understand the weather is to get inside it. This program features scientists from around the globe who are creating their own weather in an attempt to examine the secret processes at work. Scientists like Dr. Nigel Tapper of Monash University, Australia tries to create his own massive dust storm so he can examine the microscopic moments when dust particles begin to bounce high into the stratosphere. Engineers Jim Stratton and Craig Zehrung from Purdue University, USA use a high powered "vacuum cannon" to fire homemade hailstones at over 500 mph. It sounds like fun, but their work has a serious purpose: to discover whether hail is actually stronger than ordinary ice.