City of Key Colony Beach Official City Website

Weather Brief – King Tide Update – Florida Keys of Monroe County

The latest update concerning king tides for the Florida Keys is attached and posted at

https://www.weather.gov/media/key/DSS/dssbrief_land.pdf

A temporary minimum in coastal flooding continues in the Florida Keys.

  • A Coastal Flood Statement is in effect for the Upper Florida Keys  
  • Continuation of periodic minor saltwater flooding of low elevation streets, parking lots, yards, and the overtopping of docks will likely be observed again the next few tide cycles, and continuously in eastern Florida Bay where there is very little tide cycle.  Streets where king tide flooding is normally observed each autumn will likely to continue to see ponding of water. 
  • For the Middle and Lower Florida Keys, peak high tide levels are expected to remain below minor coastal flooding thresholds.

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 Statements for minor coastal flooding  will likely be expanded down the island Chain by the weekend, with the Upper Keys (especially in the Sounds and easternmost Florida Bay) possibly requiring Coastal Flood Advisories.
  • Coastal Flood Advisories for moderate coastal flooding likely to require expansion back down the island chain by early next week.
  • At this time, the weather situation that had set up the previous major coastal flooding is not in place.  Therefore, the present outlook (as of this morning) for coastal flooding next week strongly suggests water levels will not repeat at the same levels experienced after the last full moon king tide cycle.

Afternoon island cloud lines could focus a brief heavy downpour onto portions of the Island Chain, including Key West.  However, the overall chance for rain is lower than Wednesday, and a period of dry weather is expected to follow into the early part of this weekend.

The next brief, covering the upcoming weekend, will be issued around 4:30 pm EST Friday, November 6th.