Illinois Weather Trivia for May 12th
- A tornado, which peaked at F4 intensity, touched down in Vermilion County near Armstrong, and passed between Alvin and Rossville before moving into Indiana. At least 5 houses were destroyed, two of which were totally swept away. Three people were killed. Five other strong tornadoes occurred across Illinois that day: two near Mt. Carroll, one near Odell, one near Jacksonville, and one in Iroquois County.
- A severe thunderstorm spawned a tornado which moved across 31 miles of Macoupin and Montgomery Counties. The tornado touched down near Shipman and lifted northeast of Farmersville, causing $245,000 damage. Later, a second tornado moved through Decatur, damaging 43 residences and 3 mobile homes.
- Severe thunderstorms procued hail up to 2.5 inches in diameter from Eureka to Roanoke (Woodford County), causing $300,000 damage to 100 cars. This was part of a cluster of severe thunderstorms, producing hail in a large area from the Illinois River to the Indiana border. Weak tornadoes were also procued near Hartsburg (Logan County) and Dawson (Sangamon County).
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