Choppy seas, however, hampered efforts this morning to retrieve more of the Boeing 747 wreckage from the ocean floor.

For nearly a week, rough seas hampered the progress of the submarine.

High seas, strong currents, poor visibility and the sub's position hampered the efforts.

Rough seas and strong winds hampered the operation and a number of smaller craft capsized.

Despite the cease-fire, officials said, a continuing Israeli sea and air blockade hampered the arrival of equipment.

The weather remained favourable until three days out of Cape Town, when strong winds and heavy seas hampered her progress.

Rough seas for parts of the journey hampered training and contributed to widespread seasickness.

The ships attempted to close to torpedo range, though heavy seas and overcast conditions hampered their attack.

Rough seas, rain, and snow hampered the ship's operations during the winter months, taxing the resilience and resourcefulness of her crew on many occasions.

Heavy seas prevented salvage teams from landing on the wreck and hampered the clean-up operation.