Not Tricking You With This Treat

With weather conditions more like Mother's Day (61 degrees F, 50 degree dew point, 68% humidity and 7 mph southerly winds) than Halloween on Tuesday, October 30, 2018, an unexpected strong storm cell formed from a clear afternoon sky. A small cluster of cells began to materialize around Cedar Rapids, Iowa about 12:30 pm CDT, and by 1:18 pm they had merged to the point where the congealed storm's updraft sported a pileus cap (above and below). Both iPhone 6 Plus cellphone camera images look SSE from Progress Drive at Martha's Way in Hiawatha. The most intense part of the storm was located about 15 miles distant, near the Interstate 380 bridge over the Iowa River in Johnson County. The image below is a panorama capture.

This radar screen capture corresponds to the above photographs. The target icon is my position, with the black arrow pointing to the photograph's updraft. White arrows indicate storm movement. From here the storm moved into northern Illinois and southern Wisconsin before breaking up into rain showers.

RadarScope capture of the storm cell around 1:30 pm.