EF1 tornado in Warren County, Iowa

The tornado began in eastern Warren county east of Liberty Center. It tracked northeast for approximately 15 miles, ending in western Marion County just south of Pleasantville. Based on eyewitness accounts and video evidence, its likely this tornado was intermittent, and not a fully continuous path. This portions of the path is in Warren county with a separate entry for Marion county portion of the path.

Damage along the tornado path occurred to several homes, outbuildings, and farm equipment. The most intense damage occurred to a home and garage which suffered significant damage to exterior walls and roofing structure. However, the home appeared to suffer a garage door failure and broken windows, which allowed the structure to pressurize and blow outward. Additionally, minor to moderate tree and shelter belt damage, along with several downed power poles occurred along the path.

A trough across the Rockies underwent lee cyclogenesis, pulling a warm front north into Iowa in the afternoon. While a few storms developed along the warm front, most development was along the later cold front that moved across the area in the evening. These storms were frequent hail producers, with many reports of baseball sized hail or larger. A tornado also occurred which resulted in damage to a few homes, out buildings, and trees.