Postcards From A PDS Day

Action such as seen above was not out of the question for NE Iowa on Wednesday, June 12, 2013. A rare Particularly Dangerous Situation (PDS) advisory had been issued on this day and included this area. I donned my "lucky" Chicago Cubs t-shirt (that had served me so well during a tornado outbreak in Western Iowa on April 9, 2011) and headed north from Cedar Rapids on Highway 13 just after 4:00 PM. I witnessed a wall cloud approaching before 5:15 PM and followed it to this position (above) while it was leaving. These funnel cloud images look east along 255th Street, about a quarter-mile east of Highway 13 in Delaware County. Time for the three images are (from top-to-bottom): 5:27 PM, 5:29 PM and 5:31 PM.