Storms of 2012 - Jeff Frame
North End of the Rear-Flank Shelf Cloud

North End of the Rear-Flank Shelf Cloud

If you're looking for a wall cloud on an HP supercell, the underside of the north end of the shelf cloud along the rear-flank gust front is a good place to start (you shouldn't chase if you didn't get all that). There wasn't too much rain around the circulation, allowing for good visibility. Taken east of Elk City, OK, May 19, 2012.

shelf cloudwall cloudHP supercell