Operation Snowball (test)

The test allowed verifying predicted properties of shock and blast and determining its effect on a variety of military targets at varied distances from ground zero.

Virtually the entire station was mobilized for the effort and unusual equipment was designed and manufactured at the site's engineering and machine shops.

[2] Columns were drilled 80 feet (24 m) into the ground at the blast site and then back filled with a coloured soil mix to measure the expected horizontal and vertical displacement.

Local residents in Medicine Hat may have seen unusual cargo arriving on rail flatcars including heavy Jupiter and Nike configuration rockets.

Other targets included a minefield, chambers and tunnels, reinforced concrete arches, fibreglass shelters, full-scale troop models exposed and inside vehicles and gas masks.

Many target objects were moved and damaged by the overpressure blast, especially the heavy rockets, and two M113 armoured personnel carriers were flipped on their side.