Please forgive me if this is covered in a previous post.

My limited understanding of the situationals involved makes me think that landspouts and gustnadoes are primarily different only in their relative locations, i.e. along shelf/roll clouds for gustnadoes and in main updrafts or flanking lines for landspouts. Is this correct? Are there any interchangeable factors or qualities between them?

I saw my first gustnadoes in June 2004 just west of Stratford, TX. Finally got something on video that was rotating on the ground.

Dave Gallaher
Huntsville, AL
This article may help: What is a tornado?. (It was linked to from an article someone posted in answer to my meso question.) I just read it over my lunch break, but I believe it covers the topics you ask about.

Darren Addy
Kearney, NE