GMZ005-142030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
429 AM EDT Wed Oct 14 2026
.SYNOPSIS...
High pressure is centered over the Southeast U.S. extending
eastward into the western North Atlantic. In addition, the weak
front that passed through yesterday remains stalled across the
Straits of Florida early this morning. This will promote gentle to
moderate northeast to east breezes over the next several days.
There will be chances for showers and a few thunderstorms over the
next few days as this weak and diffuse front remains in the area.
Late week, confidence is slowly increasing for a rather strong
cold front driving southeastward through the Gulf and towards the
Florida Keys over the weekend. Overall, this front, if it reaches
the Keys, will be capable of bringing hazardous marine conditions
as well as a potentially rather wet period.
The Approximate Shoreward Edge of the Gulf Stream as of October
9, 2026...
53 NM south-southeast of Dry Tortugas Light, on Loggerhead Key
33 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys
24 NM south-southeast of Sand Key Light, off Key West
19 NM south-southeast of Looe Key, off Big Pine Key
13 NM south-southeast of Sombrero Key Light, off Marathon
5 NM south-southeast of Alligator Reef Light, off Islamorada
2 NM east of Molasses Reef Light, off Key Largo
2 NM east of Carysfort Reef Light, off Ocean Reef
Gulf Stream Information Courtesy of the Naval Oceanographic
Office.
$$
GMZ052>055-072>075-142030-
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-
429 AM EDT Wed Oct 14 2026
TODAY
Northeast to east winds 10 to 15 knots, increasing to
near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: Northeast to east 3 feet at 5 seconds. Showers likely with
a slight chance of thunderstorms.
TONIGHT
East winds 15 to 20 knots, becoming east to southeast.
Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast
to east 4 feet at 5 seconds. A chance of showers with a slight
chance of thunderstorms.
THURSDAY
East to southeast winds near 15 knots, decreasing to
10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 5 seconds. A chance of showers with a
slight chance of thunderstorms.
THURSDAY NIGHT
East winds near 15 knots, becoming east to
southeast. Seas 3 to 4 feet, occasionally to 5 feet. A chance of
showers with a slight chance of thunderstorms.
FRIDAY
East to southeast winds 10 to 15 knots, becoming east
and decreasing to near 10 knots. Seas 2 to 3 feet, subsiding to
around 2 feet. A chance of showers with a slight chance of
thunderstorms.
FRIDAY NIGHT
Northeast to east winds near 10 knots. Seas 1 to
2 feet. A chance of showers and thunderstorms.
SATURDAY
Northeast to east winds near 10 knots, increasing to
10 to 15 knots in the afternoon. Seas 1 to 2 feet, building to
around 2 feet. Showers likely with a chance of thunderstorms.
SATURDAY NIGHT
Northeast to east winds near 15 knots,
increasing to 15 to 20 knots. Seas 2 to 3 feet, building to 3 to
5 feet, occasionally to 6 feet. Showers with a chance of
thunderstorms.
SUNDAY
Northeast to east winds near 20 knots. Seas 4 to 7
feet, occasionally to 9 feet. Showers with a chance of
thunderstorms.
SUNDAY NIGHT
Northeast to east winds 20 to 25 knots, becoming
east. Seas 6 to 9 feet, occasionally to 11 feet. Showers with a
chance of thunderstorms.
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