I fly with the Western Kansas Weather Modification Program, (Weather Mod), more commonly known as "cloud seeding" We inject silver iodide into the cloud bases of thunderstorms to suppress hail and enhance rainfall. This is done by flying below the bases of the thunderstorm, and burning the silver iodide using acetone as a burn agent. There has to be updrafts (in-flow) into the storm to lift the chemical into the cloud. Optimum in-flow is 500 to 1000 feet per minute. Altitude can be maintained up to about 2400 feet per minute. Depending on the severity of the inflow we fly anywhere from 100 feet to 1000 feet below the bases.
These are some pictures I took out of the airplane during these operations. I hope you enjoy them.