Gustnado (or Gustinado)
Gustnado (or Gustinado) : [Slang], gust front tornado. A small tornado, usually weak and short:lived, that occurs along the gust front of a thunderstorm. Often it is visible only as a debris cloud or dust whirl near the ground. Gustnadoes are not associated with storm:scale rotation (i.e. mesocyclones); they are more likely to be associated visually with a shelf cloud than with a wall cloud