The operation was launched during one of the stormiest winters of the 18th century, with the French fleet unprepared for such severe conditions. Patrolling British frigates observed the departure of the fleet and notified the British Channel Fleet, most of which was sheltering at Spithead for the winter. The French fleet was subject to confused orders as it left port and was scattered across the approaches to Brest: one ship was wrecked with heavy loss of life and the others widely dispersed. Separated, most the French fleet managed to reach Bantry Bay late in December, but its commanders were driven miles off course and without them the fleet was unsure of what action to take, with amphibious landings impossible due to the weather conditions, which were the worst recorded since 1708. With