A well-structured, autumnal supercell developed a strong area of spin in the lowest part of its updraft area, which gradually intensified into a tornado as it moved closer. This was in the first several seconds of the confirmed tornado, with rotating dust beneath. That wasn’t all; I almost had a satellite tornado spin up even closer! The funnel at right rotated briefly but tightly. I watched closely for a separately spinning dust plume beneath it, but never could find one with suitable certainty in the 40–50-second lifespan of the visible secondary funnel, which remained entirely separate from the tornado as it moved slowly toward the rear (cyclonically around the north rim of the mesocyclone). The smudgy material that appears to be beneath the satellite funnel was actually thin rain curtains at the more-distant rear, moving southward (leftward) as part of the mesocyclone’s rear-side hook. The tornado itself woudl continue to organize.
5 WSW Dover OK (4 Oct 98) Looking SW
35.971, -97.9938