Fire Behavior

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Common forest fire terminology:

Creeping: A fire that is spreading slowly over the ground, generally with low flame.

Crowning: A fire ascending into the crowns of trees and spreading from crown to crown. Such a fire is known as a Crown Fire.

Running: A fire that is rapidly spreading and with a well-defined head.
 
Spotting: A fire producing firebrands carried by the surface wind, a fire whirl, and/or convection column that fall beyond the main fire perimeter and result in spot fires.

Torching: A single tree or a small clump of trees is said to "torch" when its foliage ignites and flares up, usually from bottom to top. Synonym: Candle or Candling.

Systems

Fire Weather Index (FWI) System and the Fire Behaviour Prediction (FBP) System; two subsystems of the Canadian Forest Fire Danger Rating System (CFFDRS)