Paul Hadfield
EF3
July 12, 2011 - SC IL, a 'non-rotating funnel' that I jokingly labeled at the time but would seem fitting for an area of condensation along a stalled boundary being drawn straight up yet not show signs of turning. It would dissipate soon after this shot as I'm guessing the vertically ascending parcel reached peak altitude which resulted in its demise given the stagnant wind fields. A personal head scratcher and candidate for this thread that I regret not having video of as the upward motion was impressive.