I am actually doing the same EXACT project right now at school! Make sure when you make your emergency preparedness plan, You include the following 5:
Prevention: What can be done to help prevent the disaster from taking place?
Mitigation: How can you reduce the effects of the disaster
Preparedness: What preparations can be made ahead of time so that everyone can work effectively to improve conditions?
Response: What can be done during the disaster to deal with problems?
Recovery: What can be done to revert the city back to normal?
Also, you don't have to pick your state/province. I chose Sao Paulo Brazil and tornadoes.