Tornado Warned Supercell near Tomah, Oakdale & New Lisbon. Produced a developing Tornado underneath the isolated rotating wall cloud in the distance, but soon dissipated afterwards. It appeared it didn't touch the ground but the cloud base had great motion for viewing it from a good distance for a minute or so.
Shortly after, the supercell merged with it's northern cell (that produced the EF2 in Arkdale, WI) and moved northeast into the fox valley region.
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