Most of the island was flooded in 1953, as a result of exceptional weather conditions which affected much of the Netherlands and the east coast of England. High water at Southend was expected to be above mean sea level at 1:30 am on Sunday 1 February. The actual tide rose to above mean sea level, which was above the danger level for this part of the Essex coast. This level in itself was not a danger to the island, as the sea walls had been raised and strengthened between 1951 and 1952 by the War Office, and were above mean sea level. However, the high water was accompanied by strong winds, creating large waves, which broke over the top of the defences, washing away the earth banks on the inland side of the walls. Two sections of the wall breached, from Rugwood Head to Asplin's Head on the eastern side of the island, and for about to the west of Foulness Point on the northern side of the island. By 6:00 am, most of it was under water, and gas, electricity and telephone links had been severed. Rescue attempts on the Sunday failed to reach Foulness.