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3-D (left) and 2-D image (right) of a parent supercell.

3-D and 2-D graphic representation of a parent supercell.

Left: An elevated 3-D view from the Southeast of a descending 50 dBZ reflectivity core (green) with an intense 0.1 s^-1 vorticity column that extends from the surface to 2 km above ground level (AGL). Right: a 2-D view of simulated reflectivity at 2 km AGL of a cell merging along the rear flank of a parent supercell.

Credit: Kevin Van Leer, Department of Atmospheric Sciences, University of Illinois

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