Technically, it’s called a “derecho.”
As the system passed through the northern Des Moines metro area at 3:30am, it rapidly intensified and accelerated eastward. Over the next hour and a half the storm plowed eastward through Story, Marshall, and Tama Counties, blasting the area with winds of up to 105 mph, the equivalent of an EF1 tornado.
There was widespread damage in Tama and Marshall counties and beyond. Part of the Traer Manufacturing building got ripped apart, potentially having long-term implications for attempts to get something there in the future.