4wd 2,315 Posted July 30, 2013 It might be rotating but I'd call that scud or something.A proper funnel has a much more defined form with the 'wall' of the vortex clearly visible, almost a rope-like formation.Rotating updraughts or downdraughts are common in powerful shower clouds but a funnel cloud needs to be a more defined vortex. I't's like when you pull the plug in a sink - the water often rotates, but you only briefly (might) get that whirlpool effect where the rotation speed increases enormously. Link to comment
BornFromTheVoid 13,769 Posted August 10, 2013 It might be rotating but I'd call that scud or something. A proper funnel has a much more defined form with the 'wall' of the vortex clearly visible, almost a rope-like formation. Rotating updraughts or downdraughts are common in powerful shower clouds but a funnel cloud needs to be a more defined vortex. I't's like when you pull the plug in a sink - the water often rotates, but you only briefly (might) get that whirlpool effect where the rotation speed increases enormously. Cheers, there were other more ropey looking ones, but none seemed clear enough to really claim "funnel cloud" with any certainty. Link to comment
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