City of Key Colony Beach Official City Website

Weather Brief – Coastal Flooding – Florida Keys of Monroe County

Minor to Moderate Coastal Flooding Will Repeat at the High Tides Throughout This Week

  • Coastal Flood Advisories remain in effect for the Upper Florida Keys  
  • Continuation of periodic moderate saltwater flooding of low elevation streets, parking lots, yards, and the overtopping of docks will likely be observed again the next few tide cycles.  Streets where king tide flooding is normally observed each autumn may become flooded and difficult to navigate for smaller vehicles for a few hours around the published times of high tide. 
  • For the Middle and Lower Florida Keys, plan for peak water levels at each high tide over the next 24 hours to become nearly equivalent, with the late afternoon evening time building while the morning tide continues to decrease 1-2 inches per day.  Even so, minor coastal flooding is likely to continue, with the lowest elevation streets and parking lots seeing minor flooding, with low docks overtopped.

With the approach of the new moon phase on November 9th, the published lunar-driven “predicted” tides are likely to increase king tide season water levels and coastal flooding toward the end of next week.  Coastal Flood Advisories may need to be expanded back down the island chain by early next week.

Rain chances have decreased, and a period of dry weather is currently forecast from late Thursday through Saturday night.  At this time, only slight chances for rain return to the forecast for early next week.

Next Briefing:  Wednesday, Nov 4, 2026 9:30 AM EDT