Posted by Joe Cimoch [104.22.105.47] on Friday, June 26, 2026 at 08:52:09 :

From the University of Idaho Library site
This 1954 photograph depicts a mobile unit for "Project Sky Fire," a U.S. Forest Service research initiative aimed at seeding thunderstorms to prevent lightning-caused wildfires.
The research was conducted near Gisborne Mountain Lookout and the Priest River Experimental Forest in Idaho.
The mobile unit itself is a modified truck equipped with atmospheric monitoring instruments to study the relationship between thunderclouds and lightning.
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