Ring of Smoke?

Hi. I’m fairly new to the particle settings, and for my latest project I want to have a sort of ring of smoke on the ground. Is there any way that I can make the smoke go around in circles? I’m trying to make a nuke crash down on a landscape, and want the ground to have a lot of dust twirling around–like a very wide and short tornado. Any advice would be appreaciated, especially the specifics on the particles settings =)

Maybe some ideas here


Lattices would be good to use here. You would have the particles moving up wards (-Z force) as they pass thru a lattice you setup to make them spin. Scroll down to the lattice section here: http://www.blender3d.org/documentation/htmlI/x9318.html.