Michigan
As the Palm Sunday storms swept quickly out of the Chicago area across Lake Michigan, they moved towards Michigan's Lower Peninsula. Fourteen tornadoes (highest number of any state reported) would cause massive destruction across the region from Berrien and Mason Counties starting at 12:30 pm, moving northeastward to the Kalamazoo, Lansing, Flint and Saginaw areas, ending after 8:00 pm.
Starting at 4:30 pm, three F4 tornadoes and one long-track F3 tornado would touch down; the latter of which caused a 50 miles (80 km) path of damage from Mulliken to just southeast of Merrill in Saginaw County. This tornado destroyed numerous farms near Wacousta in Clinton County and several factories in St. Johns.
The highest number of casualties came from a violent tornado at 4:30 p.m. that moved from near Gull Lake in Kalamazoo County to Vermontville in Barry County. Another tornado touched down 11 miles (18 km) to the west, just northeast of Orangeville. This storm would kill one and injure another five as it destroyed most of the structures in its path including well-constructed buildings and homes, making it a candidate for being classified as another F4 tornado.
The aforementioned storm may have first touched down near Alamo, in northwestern Kalamazoo County at the same time the Gull Lake tornado was dropping from the sky. Meanwhile, another F4 tornado was descending from the darkening skies over northwestern Steuben County, Indiana, moving quickly into Branch County and killing two and injuring five more people as it moved quickly northeast toward the city of Coldwater before lifting on the outskirts of town.
Read more about this topic: 1920 Palm Sunday Tornado Outbreak