The Castlebay ferry will depart nearly three hours earlier than scheduled on Saturday because of bad weather.
A force eight souther westerly gale is forcecast for the route as the day goes on.
The skipper of the MV Isle of Lewis has brought her timetable forward to complete a return trip before seas get too rough.
The ferry will depart Barra at 5.30am and plans to leaves Oban by 10.45am.
Ferry sailing ahead of incoming gale
16 December 2016