Category Archives: Tornados

Occluded Mesocyclone Tornado

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.

Location: 7 miles south of Anadarko, Oklahoma

Photo Date: May 3, 1999

Credit: OAR/ERL/National Severe Storms Laboratory (NSSL)



Tornado. Hooker, OK. May 5, 1993.

Photographer/Owner: Martin Lisius

Details: This was one of several tornadoes produced by one of the longest-lived supercells I’ve intercepted. It tracked through three states including Texas, Oklahoma and Kansas. I witnessed three tornadoes on the ground for a combined duration of nearly two hours.

Affiliations: Prairie Pictures’ StormStock and Tempest Tours, Inc.