News Dorian strengthens to Category 5 hurricane with 180 mph winds, targets USA’s East Coast September 1, 2019September 1, 2019John Bacon, USA TODAYComments Off on Dorian strengthens to Category 5 hurricane with 180 mph winds, targets USA’s East Coast Even offshore, Dorian could bring tropical storm force winds stretching 100 miles from the center and hurricane winds 30 miles from the center.