Twelve people died from the Fargo tornado on June 20, 1957. In Fergus Falls, 57 people were killed by twin tornadoes on June 22, 1919. Thirteen died during the Fridley, Minn., tornado outbreak of May 6, 1965. The biggest outbreak of tornadoes on record in this region happened just ten years ago on June 17, 2010. There were 76 tornadoes that day; 22 in North Dakota, 48 in Minnesota, and three each in Iowa and Wisconsin. The 48 in Minnesota is the record number of tornadoes for a single day.

Wadena, Minn., took a direct hit and was heavily damaged. Two were killed and nine injured across the region, but the casualty list would have been much higher had the tornadoes formed over more populated territory. This remains the biggest outbreak of tornadoes on record for the summer months. Most high-count tornado outbreaks happen in spring.

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