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Cloud Seeding Archives

Vincent Schaefer, Irving Langmuir, and Bernard Vonnegut invent Cloud Seeding

Vincent Schaefer (1906–1993) discovered the principle of cloud seeding in July 1946 through a series of serendipitous events. Following ideas generate [...]

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Project Cirrus, First Hurricane Cloud Seeding Experiment

The energy expended by a tropical hurricane is enough to drive all the machinery in the world for three or four years. Yet the Army, the Navy and Gene [...]

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Irving P. Krick's Ground-based Cloud Seeder

In December 1949 Krick suggested cloud seeding without resorting to airborne devices; his proposal employed ground-based smoke generators dispersing v [...]

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Cloud Seeding Projects in the USA (1952-1965)

Randomized experimentation in weather modification is like the weather itself: many people talk about it, but few actually do it. In the 17 years sinc [...]

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Project Skyfire: Preventing Forest Fires with Cloud Seeding

The Project Skyfire cloud-seeding generator is designed to produce silver iodide nuclei for experiments performed in devising techniques for lightning [...]

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U.S. Navy Creates and Destroys Clouds Using Carbon Black

"We dropped carbon black suspended in liquid, over a track a mile long and produced a solid line of clouds one mile long," Dr. Florence Van Straten to [...]

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National Hail Research Experiment (NHRE)

The National Hail Research Experiment (NHRE) is a scientific field program established to answer the question of whether or not man can modify hailsto [...]

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Project Skywater: Atmospheric Water Resources Management

“to explore, develop and determine the feasibility of applying the technology of weather modification to meet the Nation’s increasing demand for clean [...]

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President Kennedy United Nations Address On Weather Modification

“if the Soviets control space they can control earth, as in past centuries the nation that controlled the seas dominated the continents.” Senator John [...]

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President Lyndon Johnson Approves Weather Warfare

“It lays the predicate and foundation for the development of a weather satellite that will permit man to determine the world's cloud layer and ultimat [...]

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Project Stormfury

Project Stormfury - the ESSA/Navy hurricane research and modification program - will attempt to seed hurricanes massively and repeatedly, to learn whe [...]

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National Cumulus Modification Project

NOAA hurricane mitigation cloud seeding experiments over Carribbean and Florida. The Departement of Commerce's National Oceanic and Amtospheric Admini [...]

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Weather and Climate Modification Reports from 1965-1966

The Honorable Leland J. Haworth Director National Science Foundation Washington, D. C. Dear Dr. Haworth: It is an honor to transmit herewith to the Na [...]

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A Recommended National Program In Weather Modification

MEMORANDUM FOR DR. DONALD F. HORNIG Subject: Weather Modification Program At its meeting of March 29, 1966 the Federal Council asked ICAS to prepare a [...]

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Operation Popeye, Motorpool, Intermediary, Compatriot: Weather Warfare Over Vietnam

Operation Popeye's weather warfare project was conducted from Thailand over Cambodia, Laos, and Vietnam and was allegedly sponsored by Secretary of St [...]

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Great Lakes Snow Redistribution Project

The primary objective of the Great Lakes Snow Redistribution Project is to alleviate the heavy snowfalls which annually hamper Buffalo, New York, and [...]

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CIA Project Nile Blue - Rain Embargo on Cuban Sugar Crops

“But the seeding near Cuba was to cause less rain, not more. It was supposed to squeeze rain out of clouds before they reached the island. You might s [...]

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Weather Modification Reporting Act of 1972

Pubic Law 92–205, §1, Dec. 18, 1971, 85 Stat. 735 [H. R. 6893] [1] CHAPTER 9A-WEATHER MODIFICATION ACTIVITIES OR ATTEMPTS; REPORTING REQUIREMENT §330 [...]

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Weather Modification UAV Drones

In two flights at Edwards Air Force Base in the Southern California desert. The pilotless plane has flown up to 5 hours and 8 minutes and to altitudes [...]

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National Weather Modification Policy Act of 1976

S. 3383 (94th): National Weather Modification Policy Act To authorize and direct the Secretary of Commerce to develop a national policy on weather mod [...]

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