Event (4) Dense "orange" plume of smoke on upwind corner of fire, at top of a lee slope

Air Observer

Photo mosaic from video footage taken by an Australian Government aircraft with a FLIR pod.
148.76° -35.14° looking SSE at about 3:00 AEDST 26th January, 2003.

This image is a mosaic of stills from an airborne FLIR system on a Customs Dash 8 aircraft over the northern Brindabella Ranges. The wind is blowing from right to left.
The closest part of the plume on the right can be seen to have an orange hue, and is denser than the smoke behind it. The channelling process is moving the base of this dense smoke towards the observer.
In the far right-hand of the image, the fire is held on its upwind edge on a break-in-slope. In the left-hand half, the channelling event is creating dense spotting, with some spotfires well established.

Implications

Phenomenon	Urgency	Indicated Red Flag Warning
Dynamic channelling	1	6) Channelling event
Deep flaming zone	?	2) Conditions conducive to plume-driven fire

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

Material prepared by R. McRae September 2009.