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" (...) During the period January to April 1973, Naval Weapons Center, China Lake will be conducting weather modification experiments over ocean areas in the vicinity of Santa Barbara, California. Timing of specific experiments is contingent upon the existence of satisfactory natural conditions. Last year such conditions existed about 16 times during the four-month period. The existence of satisfactory conditions can usually be predicted 6 hours in advance with about 80% reliability. Tentative decisions to try an experiment are made 40 hours in advance with a Co/Mo decision 24 hours ahead. (...)"

"(...) The purpose of the experiments is to develop effective cloud dispersal techniques, which, if succesful, could have operational application. (...)"
Office of the Chief of Naval Operations, Department of the Navy, Washington, D.C.
https://www.cia.gov/library/readingroom/docs/CIA-RDP76B00734R000100250006-8.pdf