Click for home pageEvent (33) Ember storm.

Air Observer

Photo from WIN TV News footage. 149.03° 35.33° looking N at about 16:00 AEDST, 18th January 2003.
These photos of Eucumbene Drive Duffy, stills from a TV news video, show a spectacular ember storm in progress. Gale force winds are causing embers to be pulled off burning pine slash. These are then blowing downwind following ballistic trajectories. Their weight is keeping them low to the ground, but it is suspected that frequent collisions have made them electrically charged. Charge repulsion might be responsible for keeping the layer elevated to about one metre off the ground. Any vertical object within that zone is heavily affected by ember attack.

While the observer is not threatened by the ember storm, great care is needed to monitor threats to safety from the fire event upwind.

Implications

Phenomenon Urgency Indicated Red Flag Warning
Dynamic Channelling 2 6) Channelling Event
Violent Pyro-Convection 1 1) 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.