Appendix F - bushfire attack level assessment report · MCU25/0022

6.2      Anticipated direction of bushfire attack

The potential direction of attack is shown in Figure 4. The probability of attack at some time is regarded as
likely, with the hazard partially aligned with the direction of worst case fire weather conditions for the region,
these being westerly to north westerly.

Section 6.3 models the scenario of fire occurring under FDI 46 conditions.

 Bushfire attack comes in a number of forms: direct flame, radiant heat, embers, smoke and wind. Research
shows that over 80% of houses lost to bushfire in Australia can be attributed to ember attack, within 100m of
bushland.




Figure 8. Main Bushfire Attack mechanisms (Image courtesy of Ramsay & Rudolf, 2003)




Report compiled by Bushfire Risk Reducers for Mr A. Wittaker, February 2023                  Page 14