More than 300 people were forced from their homes in the Marshall Islands capital, Majuro, after high waves flooded low-lying areas on Monday evening.
They were put up in local churches, youth centers and schools.
The single road on the narrow island was shut down for about three hours to allow government clean up crews with heavy equipment to remove tons of rocks, coral and garbage that the flooding tossed onto the road and into people's yards and homes.
A 20-foot boat that had been sitting on land was picked up by onrushing waves and rammed into a house.
There have been no reports of injuries.
This is the third time in a week that high waves have inundated the atoll.
The higher than normal waves were caused by a tropical storm that started 800 kilometres northwest of the Marshall Islands and has moved westward.