FEMA Administrator Brock Long said at a press conference that the hurricane will leave portions of Florida without electricity for days, adding that over 100,000 residents of the state will need shelter.
"Hurricane Irma continues to be a threat that is going to devastate the United States in either Florida or some of the southeastern states," he said.
Window of opportunity to prepare for #Irma is quickly closing. Winds will increase to unsafe levels tomorrow in S FLhttps://t.co/meemB5uHAR pic.twitter.com/NoZLeQ4Yxc
— NWS (@NWS) September 8, 2017
Florida state officials have already called for residents to head to shelters and obey all evacuations orders: more than 100,000 were told to evacuate from Miami-Dade County starting early Thursday.
According to reports, Hurricane Irma is likely to create the largest mass evacuation in US history: Miami-Dade county, along with nearby Broward and Palm Beach counties have a combined population of roughly 6 million people.
After the Hurricane Harvey, which hit the US state of Texas as a Category 4 storm last week in what turned out to be one of the costliest natural disasters in US history, Irma was upgraded to a Category 5 storm on Tuesday with winds in excess of 180 miles per hour.