City: Thrall / Montana United States
Time: 00:25 +/- 1 min
Land use: Land
First of two simultaneous tornadoes. Six homes sustained major roof damage outside of town, one of which consisted of a metal building system that had its roof purlins buckled. Minor damage to buildings occurred in Thrall, and power poles were snapped at the local high school. Twelve railroad cars east of town were blown off their tracks and may have also been affected by straight-line winds up to 138 mph (222 km/h).
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