Well on the scale of 9/11 or any huge wildfire, where smoke is abundantly spewed into the sky for days or weeks... You have to end up with smoke rings or you have to assume another invisible force other than gravity is laterally moving the atmosphere.

Well on the scale of 9/11 or any huge wildfire, where smoke is abundantly stopped into the sky for days or weeks... You have to end up with smoke rings or you have to assume another invisible force other than gravity is laterally moving the atmosphere.