Convection, cells and dissipation.
Timelapse showing the growth and decay of severe warned thunderstorms near Ballarat.
Early on you can see cumulus showing signs of horizonal vorticity, while a cell behind quickly builds, produces precipitation and a wall cloud structure. There are several scuddy lowerings and signs of some rotation. The updraft is eventually smothered by the precipitation and the cell dissipates.
A more intense cell forms further south (left in video) on this line and begins a barrage of lightning, and some hail. This also shows some wall cloud type structures.
In the 3rd scene, you can see a disturbance pass across the grass from right to left. This appeared to be a column of convection, like a dust devil, but with no dust to highlight the vortex.
Eventually the cells in the area all dissipate, as the focus of convection moved north along a trough line. Cells stretched along this line into central NSW after sunset, with spectacular lightning and low precipitation. Radar seemed to indicate rotation in each cell, that was present for at least 30 minutes. LP supercells?
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