Cloud Seeding Programs! The List for North American Continent

NORTH AMERICAN WEATHER CONSULTANTS OPERATIONAL CLOUD SEEDING PROGRAMS

Partial Listing (through April 2011)

Project Area: Gunnison County, Colorado

Sponsor: Gunnison County

Technique: Ground based silver iodide seeding

Time Period: 2003-present

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Little Cottonwood Canyon, Utah

Sponsor: Alta and Snowbird Ski Areas

Technique: Ground based silver iodide seeding

Time Period: 1996 – present

Goal: Enhanced winter snowfall for skiing

Project Area: Wellsville and Wasatch Mountains of Northern

Utah

Sponsor: Utah Division of Water Resources and Cache

County

Technique: Ground based silver iodide seeding

Time Period: 1997 – 2000, 2002-present

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Upper Ogden River and Lost Creek

Watersheds, Utah

Sponsor: Weber Basin Water Conservancy District and Utah

Division of Water Resources

Technique: Ground based and airborne silver iodide seeding

Time Period: 1991 – 1993

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Upper San Joaquin River Drainage, Southern

Sierra Nevada of California

Sponsor: Southern California Edison Company

Technique: Ground based and airborne silver iodide seeding

with radar surveillance

Time Period: 1951 – 1987 and 1990 – 1992

Goal: Enhanced winter and summer precipitation for

hydroelectric power production

Project Area: Mountain Watersheds in Central and Southern

Utah

Sponsor: Utah Water Resources Development Corporation

Utah Division of Water Resources, 13 Utah

Counties

Technique: Airborne and ground based silver iodide seeding

Time Period: 1973 – 1983, 1987, 1988-present

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Bear Lake Drainage, Smith & Thomas Forks,

Southwestern Wyoming and Southeastern

Idaho

Sponsor: Utah Power and Light Company

Technique: Ground based silver iodide seeding

Time Period: 1954 – 1970; 1979 – 1982, 1989 – 1990

Goal: Enhanced winter precipitation for hydroelectric

power production

Project Area: Santa Barbara County, California

Sponsor: Santa Barbara County Water Agency

Technique: Ground based and airborne silver iodide seeding

with radar surveillance; ground-based flare

seeding

Time Period: 1950-1953; 1955; 1956-1960; 1978; 1982 – 1997;

2002-2007; 2008-present

Goal: Enhanced winter precipitation for municipal and

agricultural water supplies

Project Area: Grouse Creek, Raft River, Wellsville and

Wasatch Mountains of Northern Utah

Sponsor: Utah Water Resources Development

Corporation,Utah Division of Water Resources,

and Cache and Box Elder Counties

Technique: Ground based silver iodide seeding

Time Period: 1989 – 1997, 2001-present

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Provo and Weber River Drainages in Western

Uinta Mountains of Utah

Sponsor: Utah Water Resources Development Corporation,

Utah Division of Water Resources, Provo River

Water Users Association and Weber Basin Water

Conservancy District

Technique: Ground based silver iodide seeding

Time Period: 1989 – 1995, 2000-present

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Wasatch Mountains in Eastern Salt Lake

County, Utah

Sponsor: Utah Water Resources Development Corporation;

Utah Division of Water Resources; Salt Lake City

Water Division; and Alta, Brighton, and Snowbird

Ski Areas

Technique: Ground based silver iodide seeding

Time Period: 1989 – 1996

Goal: Enhanced winter precipitation for municipal water

supplies

Project Area: Upper Kings River Drainage in the Southern

Sierra Nevada of California

Sponsor: Kings River Conservation District and Kings River

Water Users Association

Technique: Airborne and ground based silver iodide seeding

with radar surveillance

Time Period: 1989 – 1993, 2007-present

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Upper Feather River Drainage in the Northern

Sierra Nevada of California

Sponsor: California Department of Water Resources

Technique: Airborne silver iodide seeding with radar

surveillance

Time Period: 1989

Goal: Enhanced winter precipitation for municipal and

irrigation water supplies

Project Area: Grand Mesa and West Elk Mountains of

Western Colorado

Sponsor: Grand Mesa Water Users Association

Technique: Ground based silver iodide seeding

Time Period: 1990 – 1991

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: San Gabriel Mountains, California

Sponsor: Los Angeles County Flood Control District

Technique: Ground based silver iodide seeding

Time Period: 1959 – 1973, 1991 – 1993, 1997-2001

Goal: Enhanced winter precipitation for municipal water

supplies

Project Area: Bannock, Portneuf and Bear River Mountain

Ranges of Southeastern Idaho

Sponsor: Bear River RC&D and Bannock, Bear Lake,

Caribou, Franklin, and Oneida Counties

Technique: Ground based silver iodide seeding

Time Period: 1988 – 1989, 1992, 1993

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Uinta Mountains of Northeastern Utah

Sponsor: Uinta County, Duchesne County and

Utah Division of Water Resources

Technique: Airborne and ground based silver iodide seeding

Time Period: 1977, 1989, 2003-present

Goal: Increased winter spring, and summer precipitation

for irrigation water supplies

Project Area: Boise River Drainage, Idaho

Sponsor: Boise Project Board of Control

Technique: Ground based silver iodide seeding

Time Period: 1992 – 1996, 2002-2005, 2007-present

Goal: Enhanced winter precipitation for irrigation water

supplies and hydroelectric power production

Project Area: Willow Creek Drainage, Colorado

Sponsor: Northern Colorado Water Conservancy District

Technique: Ground based silver iodide seeding

Time Period: 1992 – 1995

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Higher Elevation Watersheds of Nine Eastern

Idaho Counties and One Western Wyoming

County

Sponsor: High Country RC&D

Technique: Ground based silver iodide seeding

Time Period: 1993, 1995

Goal: Enhanced winter precipitation for irrigation water

supplies

Project Area: Santa Clara County, California

Sponsor: Santa Clara Valley Water District

Technique: Airborne silver iodide seeding with radar

surveillance

Time Period: 1992

Goal: Enhanced winter precipitation for municipal water

supplies

Project Area: Mornos River Drainage, Greece

Sponsor: Greater Athens Water Authority

Technique: Airborne silver iodide seeding with radar

surveillance

Time Period: 1992, 1993

Goal: Enhanced winter precipitation for municipal water

supplies

Project Area: Chixoy River Drainage, Guatemala, C. A.

Sponsor: Empresa Electrica and Instituto Nacional de

Electrificacion

Technique: Airborne and ground based silver iodide seeding

with radar surveillance

Time Period: 1991, 1992, 1994

Goal: Enhanced summer precipitation for hydroelectric

power production

Project Area: El Cajon Drainage Basins, Honduras, C. A.

Sponsor: Empresa Nacional De Energia Electrica

Technique: Airborne and ground based silver iodide seeding

with radar surveillance

Time Period: 1993, 1994, 1995, 1997

Goal: Enhanced summer precipitation for hydroelectric

power production

Project Area: Tsengwen Dam Drainage, Taiwan

Sponsor: Taiwan Central Weather Bureau

Technique: Ground based silver iodide seeding

Time Period: 1992, 1994

Goal: Enhanced summer precipitation for irrigation water

supplies

Project Area: West Central Texas Near San Angelo

Sponsor: City of San Angelo, Texas

Technique: Airborne silver iodide seeding with radar

surveillance

Time Period: 1985, 1986, 1987, 1988

Goal: Enhanced summer precipitation for municipal

water supplies

Project Area: Edwards Plateau Northwest of San Antonio

Sponsor: Edwards Underground Water District, San

Antonio, Texas

Technique: Airborne silver iodide seeding with radar

surveillance

Time Period: 1985, 1986

Goal: Enhanced summer precipitation for municipal

water supplies

Project Area: South Central Texas North of Corpus Christi

Sponsor: City of Corpus Christi, Texas

Technique: Airborne silver iodide seeding with radar

surveillance

Time Period: 1985

Goal: Enhanced summer precipitation for municipal

water supplies

Project Area: Pine Valley Mountains in Southwestern Utah

Sponsor: Washington County Water Conservancy District

and Utah Division of Water Resources

Technique: Ground based silver iodide seeding

Time Period: 1985-1987

Goal: Enhanced winter precipitation for municipal and

irrigation water supplies

Project Area: Southern Delaware

Sponsor: Delaware Department of Agriculture

Technique: Airborne silver iodide seeding with radar

surveillance

Time Period: 1985

Goal: Enhanced summer precipitation for agricultural

Water supplies

Source : http://www.nawcinc.com/NAWC%20Operational%20Programs.pdf

Website :  North American Weather Consultants, Inc.

   http://www.nawcinc.com/aq.html

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