The Windsor–Tecumseh Tornado of 1946 was the most powerful tornado to hit Windsor, Ontario, being an F4 in strength, touching down on June 17 of that year. The tornado touched down near River Rouge, Michigan, then crossed the Detroit River and made landfall in the Brighton Beach neighbourhood of Windsor. It then cut across southern Windsor and northern Sandwich West Township, Ontario (now the Municipality of LaSalle, Ontario), along a path 60 kilometres (40 mi) in length. It also cut across Highway 3 before weakening somewhat.