caribbean islands overnight. the storm sustaining winds over 185 miles per hour for days. the roof is about to come. reporter: gusting up to 220 miles per hour. leaving widespread damage throughout the region. in puerto rico more than 1 million people are without power. the eye of the hurricane nearly knocked out all buildings in barbuda. roughly 90% of buildings damaged. i have never seen any such destruction. . reporter: late today irma s core moved over the dominican republic and haiti leaving behind flash flooding and mudslid mudslides. across florida tonight residents bracing for a direct hit. the storm on track to make landfall early sunday morning as a category 4 hurricane. the florida keys already under