GMZ005-011430-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 1019 PM EDT Tue Jun 30 2026
 
 
 .SYNOPSIS...A frontal boundary will stall across central Florida
 through Wednesday. This will keep winds light and variable during
 the day with brief nocturnal surges off the mainland in the
 evening and early portions of the overnight. Conditions will
 remain favorable for a cloud line to develop over, or across the
 waters adjacent to the Florida Keys on Wednesday. This may
 support the development of waterspouts. High pressure gradually
 builds back across the area Thursday with peaks and lulls
 resuming.
 
 The Approximate Shoreward Edge of the Gulf Stream as of
 June 28, 2026...
 
 33 NM South of Dry Tortugas Light...on Loggerhead Key.
 8 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 7 NM South of Sand Key Light...off Key West.
 11 NM South of Looe Key...off Big Pine Key.
 12 NM Southeast of Sombrero Key Light...off Marathon.
 7 NM Southeast of Alligator Reef Light...off Islamorada.
 2 NM Southeast of Molasses Reef Light...off Key Largo.
 1 NM Southeast of Carysfort Reef Light...off Ocean Reef.
 
 Gulf Stream Information Courtesy of the National Weather Service in
 Key West, using data from RTOFS and NASA SPoRT SST.
 
 $$




 
 GMZ052>055-072>075-011430-
 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-
 1019 PM EDT Tue Jun 30 2026
 

 OVERNIGHT
 Northeast to east 5 to 10 knots, becoming east to
 southeast. Seas around 1 foot. Wave Detail: Northeast to east 1
 foot at 4 seconds. A chance of showers with a slight chance of
 thunderstorms.

 WEDNESDAY
 East to southeast winds 5 to 10 knots, becoming
 northeast to east in the afternoon. Seas around 1 foot. Wave
 Detail: East 1 foot at 3 seconds. A slight chance of showers and
 thunderstorms.

 WEDNESDAY NIGHT
 Northeast to east winds 5 to 10 knots,
 becoming southeast after midnight. Seas 1 to 2 feet. Wave Detail:
 East 1 foot at 3 seconds. A slight chance of showers and
 thunderstorms.

 THURSDAY
 East to southeast winds 5 to 10 knots. Seas around
 1 foot. A slight chance of showers and thunderstorms.

 THURSDAY NIGHT
 East winds near 10 knots, increasing to 10 to
 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. A slight
 chance of showers and thunderstorms.

 FRIDAY
 East winds near 10 knots. Seas around 2 feet. A slight
 chance of showers and thunderstorms.

 FRIDAY NIGHT
 East winds near 10 knots. Seas around 2 feet. A
 chance of showers and thunderstorms.

 SATURDAY
 East to southeast winds near 10 knots. Seas around 2
 feet. A slight chance of showers.

 SATURDAY NIGHT
 East to southeast winds near 10 knots,
 increasing to 10 to 15 knots. Seas building to 2 to 4 feet,
 occasionally to 5 feet. A chance of showers and thunderstorms.

 SUNDAY
 East to southeast winds near 10 knots. Seas 2 to
 3 feet. A chance of showers and thunderstorms.

 SUNDAY NIGHT
 East to southeast winds 10 to 15 knots. Seas 2 to
 3 feet. A slight chance of showers and thunderstorms.
 
 $$