Storm Tide Inundation Mapping

The Storm Tide Inundation mapping identifies those areas of the coast potentially affected by temporary inundation from the sea during a tropical cyclone (or other severe weather event) and assumes no adaptation action is undertaken. The mapping does not include riverine or waterway flooding caused by rainfall.

The 1% AEP* storm tide has been mapped for five planning horizons: 2020, 2040, 2060, 2080 and 2100 and identifies water depths and inundation extents. The mapping includes an allowance for wave processes that occur near the coastline.

Mapping is indicative only and has a statistical basis. It does not represent the storm tide inundation associated with a single tropical cyclone or severe weather event.

*Annual Exceedance Probability (AEP) is the likelihood or probability of a threshold being exceeded in any given year.  For the 1% AEP storm tide, this means ‘on average’ there is a 1% chance of the coastal water level and associated inundation of this size or larger, occurring in any one year.

• Storm Tide Inundation - Baron Delta  (PDF, 10.7 MB )
• Storm Tide Inundation - Cairns City  (PDF, 9.9 MB )
• Storm Tide Inundation - Mulgrave Russell  (PDF, 8.1 MB )
• Storm Tide Inundation - Northern Beaches ( PDF, 5.55 MB )
• Storm Tide Inundation - Southern Beaches ( PDF, 5.27 MB )