This fearsome looking wall cloud to our northwest did occur with a severe thunderstorm which produced golf ball size hail and strong winds. However, within 10 minutes the wall cloud began to break up as cold outflow undercut it.

Note the tendency for the same wall cloud to look more disorganized as it "gusted out," or was undercut by outflow.

In addition to the lack of persistence, the wall cloud exhibited little if any rotation. It completely disappeared within another 5 minutes.

beneath CB towers

Terms for using data resources. CD-ROM available. Credits and Acknowledgments for WW2010. Department of Atmospheric Sciences (DAS) at the University of Illinois at Urbana-Champaign.

cyclic wall clouds