071507 - Supercell Wall Cloud / RFD - Northwest of Kearney Nebraska
July 15, 2007 - Between Kearney - Riverdale Nebraska USA
A Massive Nebraska Supercell was developing just to the northwest, moving to the southeast.
Finally got to a location that I could have fast access to leave if needed, and there was no traffic, so I grabbed essentials, jumped up onto the bed of the truck, with the tripod & camera in had, set up in seconds and fired away.
The base of the storm was slowly moving towards my location. Probably not the best timing on my side, but I wasn't about to relocate due to I only had minuets to get what I was looking for.
The official name of this cloud is a "RFD cut", or Rear Flank Downdraft, a place in the storm where cool dry air is rushing down through the bottom of the storm, clearing out a slot through a clouds.
RFDs are a key ingredient in tornado formation. Ahead of the RFD is a wall cloud that eventually could produced a couple small funnels, if that.
© Dale Kaminski (NebraskaSC). All rights reserved. Please note that while "This photo is public" it doesn't mean it is public domain or a free stock image. Therefore, its use without written consent by the author is illegal and may be punished by law.