WATCHOUT NO.10
ERUPTIVE FIRE GROWTH

INDICATOR EVENTS

OBSERVED EVENT	PRIORITY OF REACTION
Burnt area reburns as a crown fire or similar	?
Fire continues to accelerate up a canyon or gully	Priority 2
Elongated flames stay underneath canopy on steep slope	?

RESULTANT RED FLAG WARNINGS

RED FLAG WARNING	INDICATION LEVEL	SIGNIFICANCE
2) Conditions conducive to plume-driven fire	Suggested	C
3) Passage of dry slot over fire	Suggested	C
6) Channelling event	Suggested	B
9) Unusual combustion	Suggested	C
10) Intense spotting	Suggested	B

DETAILED MATERIAL

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This material arises from work carried out by the HighFire Risk Project.

Material prepared by R. McRae September 2009.