Something I’ve been researching and working toward (with mixed success) for a long time has been in the media a lot recently…
After experiencing Cyclone Larry in 2006, I became more aware of the need to be prepared for a disaster. There were 13 of us cut off from civilisation in one house (our friends’ place). Compared to most we had it easy - solar power, independent water source, food in the cupboards and garden, wood stove and so on. But still, there were challenges.
Disaster-preparedness is no longer seen as a freaky survivalist behaviour. For more information on stockpiling food, see the sites below.
Most local councils and/or state governments have disaster preparendness manuals or guides. Apart from food - consider power (cooking, lighting, heating etc), water, medical needs, hygiene requirements and more.