Delaware County Iowa Wall Cloud

A look east from 255th Street, about a quarter mile east of Highway 13 in Delaware County, Iowa. This location is about 4.5 miles north of the town of Ryan and about 4 miles south of the town of Manchester. These images were taken around 5:33 PM, Wednesday, June 12, 2013. Seeing storm cells moving east on radar from north of Cedar Rapids after 4:00 PM, and deciding none were going to fire up in the local vicinity, I headed north around 4:15 PM. At the intersection of Highway 13 and 255th Street I could see the makings of a wall cloud to my 11:00 o'clock position, where I pulled off. The structure crossed Highway 13 around 5:20 PM and these images show it moving away to the east. In the second of the two images above, members of the Manchester Fire Department observe the cloud before moving on to follow it. This wall cloud did not produce a tornado but gave every indication that it might. 18 reports of tornadoes came from northeast Iowa this evening where a very rare "Particularly Dangerous Situation" (PDS) alert was issued from the SPC (below).