This NASA Satellite Image Taken at 1715 EDT 2215 GMT on 5 September 2017 Shows Hurricane Irma Moving Across the Atlantic Ocean the Most Powerful Atlantic Storm in a Decade Has Hit the Caribbean With Officials Warning of Its Potentially Catastrophic Effects the Category Five Hurricane the Highest Possible Level Has Sustained Wind Speeds Reaching 300km-H 185mph It First Hit Antigua and Barbuda Before Moving on to Saint Barthelemy and Saint Martin It Is Then Expected to Move on Towards Puerto Rico and the Dominican Republic in the US Florida's Key West Area Has Ordered a Mandatory Evacuation PHOTO NASA-NOAA GOES Project BBCSnapshot Hurricanirma Hurricane Storm Category5 Caribbean Evacuation Weather