Rollin' Over

The very photogenic shelf cloud finally arrived over the position seen above at 6:08 pm CDT, Friday, September 9, 2016.  My vehicle is in the parking lot of Ross Veterinary Clinic on North Marion Road, about .1-mile north of County Home Road. The camera looks southwest.

A minute later and same location, but looking northeast. This area of the gust front produced very little wind, very little rain and virtually no lightning. Nikon D7200 DSLR camera.

NEXRAD radar map of Iowa showing the more intense areas which created the shelf cloud at 3:00 pm (upper) and 6:00 pm (lower). These areas are outlined in white. The white target icon shows my position during these moments.