Speaking of Brandenburg, given that Louisville and Brandenburg came from the same supercell, that may explain why Brandenburg was significantly stronger, due to the winds being confined in a smaller funnel than that of the Louisville tornado, which may have had an effect on the conservation of angular momentum, resulting in higher winds being present in the funnel of Brandenburg than Louisville. The same thing explains why Parkersburg weakened so quickly when it expanded from an EF4-5 to an EF2, and why Bassfield weakened somewhat when it expanded from its 1 miles wide stage, where it was producing significant ground scouring and extreme debarking to around 2 miles wide, where the circulation became less defined and the tornado weakened a bit.