South Australia is often referred to as the driest state in the driest continent on earth and the community expects summers to be hot. However since 2007 South Australia has experienced several periods of extreme heat which have challenged and required the emergency services including health to consider a new preparedness approach. Any extreme weather condition can cause disruption to the community and the effects of such events as extreme heat are not always immediately obvious. However these effects can silently cause death and an increase to the health burden of the community.

In South Australia the term ‘Extreme Heat’ as opposed to ‘Heatwave’ has been quite deliberately chosen as this describes more accurately an unusual climatic situation characterised by higher temperatures and greater length of time than normally expected. A number of studies have been undertaken to consider the impact on the health of the South Australian community and its health services and specfic action plans and communication strategies have been developed to respond to extreme heat and encourage an increasing level of community resilience. This paper will describe recent events, some of the research undertaken and the preparedness, planning and response strategies implemented to reduce and manage the risk.

The response strategies introduced in South Australia have been recognised for their excellence and in 2010 SA Health was the recipient of several awards at both state and national level for this work.