 After peak intensity , the forward speed of Dean continued to increase as it approached Atlantic Canada while weakening back to a Category 1 hurricane . While approaching southern Newfoundland , Dean had weakened enough to be downgraded to a tropical storm on August 8 . Shortly thereafter , Dean then made landfall on the south coast of Newfoundland with winds of 65 mph ( 105 km / h ) . Later that day , Dean emerged into the far north Atlantic and rapidly transitioned into an extratropical cyclone on the following day . 
