The following map is extracted from AS/NZS 1170.2:2011 refers to the following 4 regions with refers to the following regions with Terrain Category 2 and 10m reference height:

  • Wind Region A = Ultimate Design Wind Speed ~ 146km/h
  • Wind Region B = Ultimate Design Wind Speed ~ 187km/h
  • Wind Region C = Ultimate Design Wind Speed ~ 232km/h – Cyclonic
  • Wind Region D = Ultimate Design Wind Speed ~ 317km/h – Cyclonic

Melbourne and Sydney are not considered Cyclonic regions.