Workers put boats on dry docks in preparation, as Hurricane Irma, barreling towards the Caribbean and the southern United States, was upgraded to a Category 4 storm, in San Juan, Puerto Rico September 4, 2017. REUTERS/Alvin Baez

Workers put boats on dry docks in preparation, as Hurricane Irma, barreling towards the Caribbean and the southern United States, was upgraded to a Category 4 storm, in San Juan, Puerto Rico September 4, 2017. REUTERS/Alvin Baez

REUTERS / Alamy Stock Photo

Image ID: 2CR1CXN