August’s Derecho Was The United States Most Expensive Thunderstorm In Recent History


Via Flickr

Thomas Robinson | October 20th, 2020

The National Oceanic and Atmospheric Administration (NOAA) has reported that August’s Derecho caused $7.5 billion worth of damages and that the number is still increasing.

The Derecho in August resulted in extensive damage to Iowa and has been identified as the most expensive thunderstorm to hit the US in recent history.  August’s storm comes second only to Hurricane Laura, which had a damage cost of $12 billion, for storm damages for this year.  Cedar Rapids was hit particularly hard, where it is estimated that 90% of all buildings sustained damages from the storm.

A factor for why the storm has cost so much is that the corn crop had grown enough in August to be damaged by the heavy winds.  That damage has resulted in around 850,000 acres of corn crop lost, around 50% more than previously thought.  Unfortunately, grain silos were also affected by the storm where it is estimated that 57 million bushels of stored grain were damaged.

Even now in October, Iowa is still working to recover from the storm.  Some Iowans remain unable to return home after the events and there was a spike in people filing for unemployment benefits after the storm.  Around $4 billion in federal help was asked for by Gov. Kim Reynolds to address the damages to Iowa’s farms.

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