GMZ005-132145-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 431 AM EST Sat Dec 13 2025
 
 
 .SYNOPSIS...Moderate to occasionally fresh northeast to easterly
 breezes will slightly slacken over the day into tonight. The next
 frontal boundary is progged to push through the Florida Keys
 marine zones on Sunday night. Ahead of the front, elevated chances
 for showers and thunderstorms will be possible late tonight
 through early Sunday. In the wake of the frontal passage, fresh to
 strong northeasterly breezes are expected Sunday night through at
 least Tuesday.
 
 The Approximate Shoreward Edge of the Gulf Stream as of December 8...
 
 15 NM South of Dry Tortugas Light...on Loggerhead Key.
 13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 14 NM South of Sand Key Light...off Key West.
 18 NM South of Looe Key...off Big Pine Key.
 23 NM Southeast of Sombrero Key Light...off Marathon.
 18 NM Southeast of Alligator Reef Light...off Islamorada.
 12 NM Southeast of Molasses Reef Light...off Key Largo.
 8 NM Southeast of Carysfort Reef Light...off Ocean Reef.
 
 Gulf Stream Information Courtesy of the National Weather Service in
 Key West based on products from NASA SPoRT and RTOFS.
 
 $$



   GMZ033-034-132145-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  431 AM EST Sat Dec 13 2025    TODAY  Northeast to east winds near 15 knots, decreasing to 10  to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 2  feet at 4 seconds and northwest 1 foot at 5 seconds. Scattered  showers and isolated thunderstorms in the afternoon.  TONIGHT  East to southeast winds 10 to 15 knots, decreasing to  near 10 knots. Seas 1 to 2 feet. Wave Detail: East 2 feet at 4  seconds. Numerous showers and scattered thunderstorms.  SUNDAY  North to northeast winds 5 to 10 knots, increasing to 10  to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Wave  Detail: Northeast to east 1 foot at 3 seconds. Isolated showers  and thunderstorms.  SUNDAY NIGHT  North winds 15 to 20 knots. Seas 2 to 3 feet,  building to 3 to 5 feet, occasionally to 6 feet. Isolated  showers.  MONDAY  Northeast winds near 20 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Isolated showers.  MONDAY NIGHT  Northeast winds near 20 knots. Seas 3 to 5 feet,  occasionally to 6 feet. Isolated showers.  TUESDAY  Northeast winds near 20 knots, decreasing to 15 to 20  knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated  showers.  TUESDAY NIGHT  Northeast to east winds 15 to 20 knots. Seas  2 to 4 feet, occasionally to 5 feet. Isolated showers.  WEDNESDAY  East winds near 15 knots. Seas 2 to 3 feet. Isolated  showers.  WEDNESDAY NIGHT  East winds near 15 knots. Seas 2 to 3 feet.  Isolated showers.    $$