Flood, storm and tsunami (natural hazards) can happen at any time in NSW. It is important to be aware of the risks in your area to help you to plan, prepare, respond and recover effectively. Understanding past and potential future hazards in your area helps you to make informed decisions that can reduce the impact on individuals, families, businesses and communities.
The local information page provides valuable resources for your Local Government Area (LGA). You can explore flood information for your local river catchment through Local Flood Insights, access local flood plans and guides, and connect with local councils and NSW SES units.
Woronora River (Sutherland Shire LGA)
This local government area is part of the Woronora River catchment.
The Woronora River, located in Sydney's southern suburbs on Dharawal land, flows through the Woronora Plateau to the Georges River in the Sutherland Shire. The name "Woronora" means "black rock" in Indigenous language. Its catchment area extends across parts of Campbelltown, Liverpool, and Wollongong, forming a large river system. As the largest tributary of the Georges River, its upper reaches remain relatively undeveloped and are managed by the Sydney Catchment Authority.
Sutherland Shire Council provides local information on flood prone land along the Woronora River in the planning/zoning layer of their Shire Maps Sutherland Shire Council.
Though most areas are subject to some flash flooding in heavy rains and tidal impacts are common along the foreshore, riverine flooding that could cause extended inundation or isolation is predominantly around low-lying areas of the river in Woronora and Bonnet Bay.
More information about the Woronora River and Woronora Dam can be found by visiting our Georges River and Woronora River information page, or visiting the Sydney Coast and Georges River Local Flood Insight.
Georges River and Woronora River
Tsunami
The New South Wales coastline may be impacted by tsunami, a series of powerful waves.
While the likelihood of a land-threat tsunami on the east coast of Australia is low, consequences of a tsunami can be devastating as witnessed in Indonesia in 2004 and Japan in 2011.
There have been over 50 recorded tsunami events on the Australian coastline since European settlement. We are more likely to experience marine and immediate foreshore threat tsunami than a land inundation threat tsunami.
Early evacuation could help protect many people. Visit the Tsunami page for more information about tsunami risks.
Visit the Tsunami evacuation map page to view maps showing evacuation areas in the event of a land-threat tsunami.