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A storm surge inundation map released at 11 a.m. by the NHC shows the potential for more than 9 feet of water flooding into vulnerable Tampa Bay, Charlotte Harbor, and Fort Myers Beach.
Maps show the areas impacted by storm surge, rainfall levels and more as Helene, once a major hurricane and now a tropical storm, moves inland from Florida's Gulf Coast over Georgia.
The mouth of the Mississippi River saw breaks in its levee system due to storm surge. In Mississippi, a massive storm surge destroyed most structures along the coast including floating casinos, and preliminary figures show that the storm surge was higher than in Hurricane Camille of 1969. [4] There were 1,836 fatalities, mostly from flooding.
A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami-like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the normal tidal level, and does not include waves. [1]
The National Hurricane Center has increased the peak storm surge forecast from 8-12 feet to 10-15 feet of inundation for the area from Anclote River to Tampa Bay.
Storm surge inundation of 2–2.5 ft (0.61–0.76 m) in the Pensacola area occurred ahead of the hurricane due to strong easterly winds, producing minor flooding. Significant beach erosion and road damage was caused by 10–15 ft (3.0–4.6 m) waves along SR 399 between Pensacola Beach and Navarre.
FEMA/Surge map server; Erik Larson (25 Sep 1999). "Hurricanes on the Hudson" (Opinion article). New York Times a little-known interim technical data report by the Army Corps of Engineers released in 1995... concluded that even a modest hurricane, on just the right track, could drive an immense storm surge into lower Manhattan, submerge Kennedy Airport and drown a few subway trains.
Hurricane Helene reached Florida's Gulf Coast late Thursday as an "extremely dangerous Category 4 hurricane,'' forcing mandatory evacuations for several counties as its deadly storm surge reached ...