Hurricane Irma, which pounded through the Caribbean on a devastating path toward Florida, is the most powerful hurricane ever recorded in the Atlantic. Officials in Miami-Dade County are responding with a historic evacuation to match.Miami-Dade mayor Carlos Gimenez expanded evacuation orders for the state's most populous county Thursday, bringing the total number of people asked to leave their homes up to 650,000—the largest evacuation ever ordered in Miami-Dade. Irma is expected to make landfall Sunday in Florida.Continue reading on VICE News.