The following is a list of the costliest tornadoes in the Americas including Canada and the United States.
(average exchange rate for 2024, 1 CAD = 0.742942 USD) Grazulis reported $400 million (or $565,757,420, adjusted) in damages.
These tornadoes significantly contributed to the process of predicting severe weather events.
He also mentions a total of $3.8 million in damages in Pennsylvania but only with regard to trucks and other vehicles at a few different locations.
He makes no mention of total damages in Pennsylvania and there are no resources available that provide that information.