Project Vortex-99. Occluded mesocyclone tornado. Occluded means old circulation on a storm; this tornado was forming while the new circulation was beginning to form the tornadoes which preceeded the F5 Oklahoma City tornado. Photo #3 of sequence. Oklahoma 7 miles south of Anadarko. May 3, 1999.
Credit: OAR/ERL/National Severe Storms Laboratory (NSSL).
Miguel Vera, ouistitis, ReginaldoNaldo, Jascha Dub, and 8 other people added this photo to their favorites.

ouistitis 25 months ago | reply
Wow ! Impressive !
Thank you for sharing.
etgeek (Eric) 2 months ago | reply
Amazing photo!!!