Gross vortex activities in a simple simulated urban fire

A report is hereby given to the results of an originally seemingly inconspicuous burn in a simple simulated urban street arrangement which is inductive to probable gross vortex formation. These results reveal in vivid details a series of most unusual and exciting events of gross vortex development and their related fire-brand spotting activities. These findings point to a promise of an understanding of, among other things, some of the strangest fire behaviors obsered in large urban fires.