GMZ005-242030-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 425 AM EDT Sat Oct 24 2026
 
 
 .SYNOPSIS...
 Strengthening high pressure centered over the Mid-Atlantic region
 will interact with a developing disturbance in the eastern
 Caribbean, supporting freshening northeasterly breezes over the
 next several days. A Small Craft Advisory is in effect for all
 Florida Keys marine zones. Breezes will peak Sunday night through
 Tuesday, when strong to near gale breezes will be possible. The
 freshening breezes and a surge of moisture may also support
 elevated rain and thunderstorm chances through Monday.
 
 The Approximate Shoreward Edge of the Gulf Stream as of October
 19, 2026...
 
 46 NM south of Dry Tortugas Light, on Loggerhead Key
 18 NM north of Cosgrove Shoal Light, off the Marquesas Keys
 12 NM north of Sand Key Light, off Key West
 7 NM north-northwest of Looe Key, off Big Pine Key
 5 NM southeast of Sombrero Key Light, off Marathon
 2 NM south-southeast of Alligator Reef Light, off Islamorada
 2 NM northwest of Molasses Reef Light, off Key Largo
 3 NM northwest of Carysfort Reef Light, off Ocean Reef
 
 Gulf Stream Information Courtesy of the Naval Oceanographic
 Office.
 
 $$




 
 GMZ052>055-072>075-242030-
 Straits of Florida from Ocean Reef to Craig Key out 20 NM-
 Straits of Florida from Craig Key to west end of Seven Mile
 Bridge out 20 NM-
 Straits of Florida from west end of Seven Mile Bridge to south of
 Halfmoon Shoal out 20 NM-
 Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
 Tortugas out 20 NM-
 Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
 Straits of Florida from Craig Key to west end of Seven Mile
 Bridge 20 to 60 NM out-
 Straits of Florida from west end of Seven Mile Bridge to south of
 Halfmoon Shoal 20 to 60 NM out-
 Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
 Tortugas 20 to 60 NM out-
 425 AM EDT Sat Oct 24 2026
 
 SMALL CRAFT ADVISORY IN EFFECT
 

 TODAY
 Northeast winds near 20 knots. Seas 4 to 7 feet,
 occasionally to 9 feet. Wave Detail: Northeast 6 feet at 7
 seconds. A chance of showers with a slight chance of
 thunderstorms.

 TONIGHT
 North to northeast winds near 20 knots, decreasing to 15
 to 20 knots. Seas 4 to 7 feet, occasionally to 9 feet. Wave
 Detail: Northeast 6 feet at 6 seconds. A slight chance of showers
 and thunderstorms.

 SUNDAY
 North to northeast winds 15 to 20 knots, increasing to
 near 20 knots. Seas 4 to 7 feet, occasionally to 9 feet. Wave
 Detail: North to northeast 5 feet at 6 seconds. A chance of
 showers with a slight chance of thunderstorms.

 SUNDAY NIGHT
 Northeast winds 20 to 25 knots. Seas building to 6
 to 9 feet, occasionally to 11 feet. Showers likely with a slight
 chance of thunderstorms.

 MONDAY
 North to northeast winds 20 to 25 knots. Seas 6 to
 9 feet, occasionally to 11 feet. Showers likely with a slight
 chance of thunderstorms.

 MONDAY NIGHT
 Northeast winds 20 to 25 knots. Seas 6 to 9 feet,
 occasionally to 11 feet. A chance of showers with a slight chance
 of thunderstorms.

 TUESDAY
 North to northeast winds 20 to 25 knots, becoming
 northeast and decreasing to near 20 knots in the afternoon. Seas
 6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 8 feet,
 occasionally to 10 feet. A chance of showers with a slight chance
 of thunderstorms.

 TUESDAY NIGHT
 Northeast winds 20 to 25 knots. Seas 5 to
 7 feet, occasionally to 9 feet. A chance of showers with a slight
 chance of thunderstorms.

 WEDNESDAY
 Northeast winds 20 to 25 knots. Seas 4 to 6 feet,
 occasionally to 8 feet. A chance of showers with a slight chance
 of thunderstorms.

 WEDNESDAY NIGHT
 Northeast winds 20 to 25 knots. Seas 4 to
 6 feet, occasionally to 8 feet. A chance of showers.
 
 $$