Historical Analysis > Fire Behavior Normals

Historical Analysis

Fire Behavior Normals for Fire Season

Rate of Spread (ROS) is the predicted speed of the fire at the front or head of the fire (where the fire moves fastest), and takes into account both crowning and spotting. It is measured in meters per minute and is based on the Fuel Type, Initial Spread Index, Buildup Index, and several fuel-specific parameters such as phenological state (leafless or green) in deciduous trees, crown base height in coniferous trees, and percent curing in grasses.

Fire Behavior Normals represent the average value of a fire behavior element over the 30-year period from 1971 to 2000.

More information about the Canadian Forest Fire Behavior Prediction (FBP) System and Fire Behavior Normals is available in Background Information.

Last updated: 2006-07-08

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