Derecho Devastates Parts Of The Midwest

A powerful storm caused significant damage and power outages across the Midwest, with wind speeds reaching 100 mph, comparable to a major hurricane. Unlike hurricanes or tornadoes, derechos have straight-line winds and can cause widespread damage. They occur about once a year in the Midwest. This storm is compared to the 2009 Super Derecho, which caused extensive damage over a large area.

What is the frequency of day ratios occurring in the Midwest?

What was the estimated damage caused by the 2009 Super Day ratio?