Description

Between April 17 and 20, tornadic activity was concentrated across portions of Nebraska, Kansas, Oklahoma, Texas, Iowa, and Missouri. During this four-day period, at least 69 tornadoes were confirmed, including four EF-U (unknown intensity), 28 EF-0, 32 EF-1, four EF-2, and one EF-3 tornado. Two long-lived and powerful supercells traversed parts of eastern Nebraska and western Iowa on April 17, producing at least six tornadoes. The strongest tornado of the day was rated EF-3 and impacted the Bennington/Fort Calhoun, Nebraska area, north of Omaha, Nebraska.