While doing some research on the tornado that struck the Wilson farm on September 18, 1986, I came across the following information directly from the National Oceanic and Atmospheric Administration (NOAA) website.
– September 18, 1986
Webster County. A tornado touched down six miles south of Inavale, NE and moved northeast for two miles. The tornado destroyed a barn, downed power lines and trees, and damaged several outbuildings.
September Tornadoes – South Central Nebraska and North Central Kansas
Data from January, 1950 – December 2010
The source states that the tornado touched down six miles south of Inavale, when in fact it was six miles north of Inavale.