EF0 tornado in Pottawattamie County, Iowa

There is a distinct tornado track through crop fields approximately 40 yards wide at the max. The track begins in a soybean field and then moves into the corn field where the narrow track and convergent flow pattern are most pronounced. It crosses a creek, breaks a few branches, and then through another corn field where there is convergent flow into the center of the track from the edges.

A widespread significant damaging wind storm tracked across nearly all of eastern Nebraska and western Iowa on the morning of July 12. These storms produced widespread winds of 60 to 80 mph, with embedded stronger downbursts with wind speeds up to 100 mph. The strongest measured wind gust was 82 mph in Dodge County NE, but some of the high-end straight line wind damage supports embedded wind speeds up to 100 mph.

This storm also produced a few embedded tornadoes. Some of the tornado tracks were only identified by narrow swaths of damage through mature cornfields, with minimal damage otherwise and peak wind speeds similar to the nearby downburst winds. All but one of the tornadoes was preceded by a Wireless Emergency Alert. There were 0 reported injuries or fatalities.