News Dorian strengthens to Category 5 hurricane, 175 mph winds, marches west toward USA’s East Coast September 1, 2019John Bacon and Dan DeLuca, USA TODAYComments Off on Dorian strengthens to Category 5 hurricane, 175 mph winds, marches west toward 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.