GMZ005-160330-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 1028 AM EST Thu Jan 15 2026
 
 
 .SYNOPSIS...A strong cold front will continue to push through the
 Keys marine zones today. Breezes will become strong, with
 frequent near gale gusts late this morning through early this
 evening. High pressure will quickly slide eastward across the
 Southeast behind the front, supporting rapidly slackening breezes
 for Friday through Saturday clocking around to the northeast. The
 next cold front is progged to push through the Florida Keys
 coastal waters on Sunday or Sunday night.
 
 The Approximate Shoreward Edge of the Gulf Stream as of January
 12...
 
 19 NM South of Dry Tortugas Light...on Loggerhead Key.
 13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 15 NM South of Sand Key Light...off Key West.
 17 NM South of Looe Key...off Big Pine Key.
 17 NM Southeast of Sombrero Key Light...off Marathon.
 15 NM Southeast of Alligator Reef Light...off Islamorada.
 10 NM Southeast of Molasses Reef Light...off Key Largo.
 5 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.
 
 $$




 
 GMZ052>055-072>075-160330-
 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-
 1028 AM EST Thu Jan 15 2026
 
 SMALL CRAFT ADVISORY IN EFFECT
 

 THIS AFTERNOON
 West to northwest winds near 20 knots, becoming
 northwest near 30 knots. Seas 4 to 6 feet, occasionally to 8
 feet, building to 7 to 10 feet, occasionally to 13 feet. Wave
 Detail:
 West 5 feet at 5 seconds, becoming west to northwest 8 feet at 7
 seconds. Widespread showers and isolated thunderstorms.

 TONIGHT
 Northwest to north winds near 30 knots, becoming north
 to northeast 20 to 25 knots after midnight. Seas 7 to 10 feet,
 occasionally to 13 feet, subsiding to 6 to 9 feet, occasionally to
 11 feet. Wave Detail: Northwest to north 8 feet at 6 seconds.

 FRIDAY
 North to northeast winds near 20 knots, becoming
 northeast to east 10 to 15 knots in the afternoon. Seas 5 to 7
 feet, occasionally to 9 feet, subsiding to 3 to 5 feet,
 occasionally to 7 feet. Wave Detail: North to northeast 5 feet at
 6 seconds and west to northwest 5 feet at 8 seconds.

 FRIDAY NIGHT
 Northeast to east winds 10 to 15 knots, decreasing to
 near 10 knots after midnight. Seas 3 to 5 feet, occasionally to 6
 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. Isolated
 showers.

 SATURDAY
 Northeast winds near 10 knots, increasing to 10 to 15
 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated
 showers.

 SATURDAY NIGHT
 Northeast winds 10 to 15 knots, becoming north
 to northeast 5 to 10 knots after midnight. Seas 2 to 3 feet,
 subsiding to around 2 feet. Isolated showers.

 SUNDAY
 Northwest to north winds near 15 knots, becoming
 northwest 15 to 20 knots in the afternoon. Seas 2 to 3 feet,
 building to 3 to 4 feet, occasionally to 5 feet. Isolated showers.

 SUNDAY NIGHT
 Northwest to north winds 20 to 25 knots,
 increasing to near 20 knots. Seas 4 to 7 feet, occasionally to 8
 feet. Isolated showers.

 MONDAY
 North winds 20 to 25 knots, decreasing to 15 to 20 knots.
 Seas 4 to 7 feet, occasionally to 8 feet.

 MONDAY NIGHT
 North winds 15 to 20 knots, decreasing to near 15
 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated
 showers.
 
 $$