As Hurricane Idalia continues to batter Florida and Georgia with powerful winds and torrential rains, storm surges have emerged as the most significant threat to life and property. The National Hurricane Center has warned that the ocean water pouring onto land could reach up to 15 feet in some areas of Florida’s west coast, with even higher waves expected in the Tampa Bay region.
The storm surge is a deadly phenomenon that occurs when a hurricane forces ocean water onto the land, often with catastrophic consequences. The water is heavy, with a cubic yard weighing approximately 1,700 pounds, and can move quickly, sweeping people away, destroying buildings, and contaminating the land with saltwater.
As the hurricane approaches the coast, atmospheric pressure from the storm helps squeeze the water onto the shore. The shallower the continental shelf, the higher the threat of a dangerous surge. The waters may take several days to fully subside, leaving a trail of destruction in their wake.
The area hit by Hurricane Idalia is particularly vulnerable to storm surges due to its geography. The continental shelf extends far out from the coast, and the region’s curved inward shape can focus the surge, making it even more dangerous.
In South Carolina, there is concern that the storm’s path will take it near the historic city of Charleston and the surrounding Low Country, which could exacerbate the flooding. The National Weather Service is forecasting an 8.2-foot tide in Charleston on Wednesday evening, which could produce widespread flooding in downtown.
The rare blue supermoon, which was closest to the Earth on Wednesday, the day Idalia made landfall, has raised concerns about its impact on tides. The moon’s gravitational pull will increase tides above normal ranges, making flooding even worse in some areas.
Florida is still recovering from the devastating effects of Hurricane Ian, which hit the state last September and caused widespread destruction. The National Oceanic and Atmospheric Administration has warned that the 2023 hurricane season will be busier than initially forecast due to the extremely warm ocean temperatures.
As the storm surges continue to pose a significant threat to life and property, officials are urging residents to heed warnings and take necessary precautions to ensure their safety. With the threat of devastating storm surges looming, it is essential to take this storm seriously and prioritize preparation and evacuation.