Backing Fire

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Wildfire Knowledge Graph · Fire Behaviour

Working definition

A fire front spreading against the prevailing wind or downslope, commonly slower than the head fire in the same fuels.

In plain language

A fire front spreading against the prevailing wind or downslope, commonly slower than the head fire in the same fuels.

Why it matters

Backing Fire is useful because it separates one specific part of wildfire behaviour, exposure, operations or evidence from nearby concepts that can otherwise be mixed together.

Primary terminology sourceSearch official NWCG glossary ↗

Tecnobosque explanation reviewed 12 September 2026. Source definitions are authoritative within their stated jurisdiction; the explanatory text above is an independent technical synthesis.