Storm Surge

Storm surge refers to the abnormal rise in sea level near the coast during a severe weather event, particularly during tropical cyclones (hurricanes or typhoons). It is primarily caused by the strong winds and low atmospheric pressure associated with these storms, which push water towards the shore and prevent it from receding naturally.

When a tropical cyclone approaches land, the powerful onshore winds and low pressure at its center can pile up water in the ocean, causing it to rise above normal levels. This surge of water is driven towards the coast and can result in a rapid increase in sea level. The height of the storm surge is influenced by various factors, including the intensity of the storm, its forward speed, the shape of the coastline, and the slope of the ocean floor.

Storm surges can pose a significant threat to coastal areas, often resulting in devastating flooding and destruction of infrastructure. They can inundate low-lying coastal areas, erode beaches, and cause significant property damage. Storm surge is considered one of the most dangerous and life-threatening aspects of a tropical cyclone, especially when it occurs concurrently with high tide, exacerbating the impact.

Efforts to mitigate the effects of storm surge include coastal engineering, such as the construction of seawalls and levees, and the implementation of evacuation plans to ensure the safety of coastal residents. Meteorological agencies provide storm surge forecasts and warnings to alert the public about the potential risks associated with an approaching tropical cyclone.