Results from a Long-Term Winter Cloud Seeding Program in Utahby Don A. Griffith, North American Weather Consultants, Salt Lake City, United States,
John R. Thompson, North American Weather Consultants, Salt Lake City, United States,
Dan A. Risch, North American Weather Consultants, Salt Lake City, United States,
Abstract: An operational wintertime cloud seeding program has been conducted in portions of Utah since 1974. North American Weather Consultants (NAWC) has conducted this program for a consortium of counties, water conservancy districts, and the State of Utah. The program has been designed to augment the winter snowpack in the higher elevation areas of the participating counties. A network of ground based silver iodide generators are used to seed selected portions of winter storm systems. Precipitation gauge records are used to evaluate the effects of the cloud seeding program. The results of this evaluation indicate an estimated 13.8 percent increase in precipitation in the higher elevation target area.
Subject Headings: Weather modification | Winter | Water conservation | Snow | Storms | Consulting services | Utah | North America | United States
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