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<br />CLOUD SEEDING - 1999 <br />A SUMMARY OF CLOUD SEEDING <br />OPERATIONS BY WATER ENHANCEMENT AUTHORITY <br /> <br />During the winter of 1999, an abbreviated cloud seeding program was conducted <br />by Water Enhancement Authority over Grand Mesa and the West Elk Mountains in <br />Western Colorado. The program was sponsored by the Grand Mesa, Crawford, Fruitland <br />and Colbran Conservancy Districts and Kannah Creek! City of Grand Junction, and Powder <br />Horn Ski Area. Water Enhancement operated under Colorado Weather MOdification <br />Permit No. 90-2. <br /> <br />This cloud seeding program was operated with twelve (12) ground-based <br />generators located around the target area. Generators were filled with a solution of 2% (by <br />weight) of silver iodide and acetone. This mixture was burned with'propane. <br />Approximately six (6) grams of silver iodide were released per hour of operation per <br />generator. <br /> <br />The program started on January 16,1999 and ended on March 25,1999. During <br />this period there were seven (7) seedable storms. Approximately 3864 grams of silver <br />iodide were released. <br />