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Florida Atlantic Coast Faces Rising Coastal Flood Risk

Stronger onshore winds meeting peak full-moon tides are forecast to lift weekend high tides into the moderate flood range.

Overview

  • A Coastal Flood Advisory is already in effect and minor tidal flooding is occurring around high tides in the St. Johns River basin and nearby Atlantic shore.
  • Forecasters say sustained northeasterly winds will strengthen Friday and peak Saturday through Monday, with gusts to 30–40 mph and possible gale conditions offshore that will push water into vulnerable bays and inlets.
  • The combination of strengthened onshore flow and king tides tied to the full moon is expected to raise high tides into the moderate flood category from Saturday morning through Monday, flooding low-lying roads, parking areas and some structures in exposed Intracoastal and river-basin locations.
  • Dangerous surf and a high rip-current risk are already present along beaches from St. Simons Island through Flagler Beach, with 3–6 foot breakers expected and officials urging people to stay out of the ocean and follow beach patrol guidance.
  • Saturday carries the highest rain chance with a 70% outlook and a broader 1–3 inch rainfall threat into Sunday and Monday, which could worsen localized flooding and prompt upgrades from advisories to Coastal Flood Watches or Warnings.