From the Pella PD:
At approximately 4:15 pm, July 19, 2018 Pella emergency services responded to a reported tornado touchdown at Vermeer Manufacturing, Pella IA.
At this time, Vermeer Manufacturing sustained significant physical damage to the east end of the manufacturing mile. The amount of building damage is unknown. The number of employees
inside the facilities is unknown when the severe weather impacted Vermeer Manufacturing. There were injured people however the number and extent of injury is unknown at this time. Many surrounding area ambulance, fire, and law enforcement personnel and resources responded to help with incident. Rescue and fire operation continues at this time.