Storm surge is water that is pushed toward the shore by the force of the winds swirling around the storm. A storm surge can come from a hurricane or an extra-tropical cyclone. source: NOAA-Hurricane Preparedness
Seawalls, like dykes, levees and berms, have been used across the world for centuries to protect homes and assets. But they stop the beach from being a dynamic system, in which wind and waves continually reshape the shore. In Australia, seawalls have come under greater scrutiny and there is an ongoing debate to defend, accommodate or retreat.