Updated live — Source: CWFIS / Natural Resources Canada  | ← Canada Fire Central

The FWI is a numeric rating of fire intensity. It combines wind speed, temperature, humidity and rain to estimate potential fire behavior.

Color	Value	Category	Description
	0 – 5	Very Low	Little to no fire weather concern. Fires unlikely to start or spread.
	6 – 15	Low	Fire possible under some conditions. Spread limited, easily controlled.
	16 – 22	Moderate	Fire will spread. Some suppression difficulty under dry or windy conditions.
	23 – 29	High	Aggressive fire behavior. Difficult suppression. Spotting possible.
	30+	Very High to Extreme	Dangerous fire conditions. Extreme fire behavior, rapid spread, difficult control.