>>3477830 (lb)

For those interested in some of the origins of cloud seeding in the US..........

sauce: https://journalofweathermodification.org/index.php/JWM/article/view/55/39

Also some other digable links I've come across:

http://journalofweathermodification.org/index.php/JWM/article/viewFile/385/424

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.689.9325&rep=rep1&type=pdf

https://www.newspapers.com/clip/22984669/weather_modification_1957/