Recent unexpected extreme weather events are testing our emergency response capabilities, such as the heat wave in Chicago in 1995, hurricane Floyd in 1999, Katrina in 2005, and Ike in 2008. The heat wave caused 514 heat related deaths (12 per 100,000 population) and 3300 excess emergency admissions. In case of such an extreme event, people can be moved to shelters where climate controlled environment can be provided and healthcare needs can be met. Without a detailed plan that takes population demographics and uncertainty into consideration, there may not be sufficient accommodation in health centers (such as hospitals, clinics, and shelters and the others) or sufficient provisions (such as food, water, and drugs) for the population in the target areas. Our goal in this workshop is to bring emergency disaster management practitioners, and the operations research community together to discuss emerging needs and the related current research issues. The following focus areas are of special interest: