GMZ005-070245-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1031 AM EDT Tue Oct 6 2026
.SYNOPSIS...
Ridging across the area will continue to encourage light to
gentle southeasterly breezes across the local waters. Occasional,
isolated showers are possible, but most of the area will stay dry
through today. A cold front is still on track to stall across the
Florida Peninsula and northern Gulf during the middle of the week
with the highest rain chances remaining north of the Florida
Keys. This will promote a shift to light to gentle south to
southwesterly breezes during the middle of the week. TOward the
end of the week, slightly better chances for showers and
thunderstorms exist, but there is still a lot of question as to
where these better chances will come to fruition.
The Approximate Shoreward Edge of the Gulf Stream as of October 2, 2026...
39 NM south-southeast of Dry Tortugas Light, on Loggerhead Key
14 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys
8 NM south-southeast of Sand Key Light, off Key West
2 NM south-southeast of Looe Key, off Big Pine Key
1 NM south-southeast of Sombrero Key Light, off Marathon
0 NM south-southeast of Alligator Reef Light, off Islamorada
2 NM northwest of Molasses Reef Light, off Key Largo
2 NM northwest of Carysfort Reef Light, off Ocean Reef
Gulf Stream Information Courtesy of the Naval Oceanographic Office.
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GMZ033-034-070245-
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-
1031 AM EDT Tue Oct 6 2026
THIS AFTERNOON
Southeast to south winds near 5 knots. Seas 1
foot or less. Wave Detail: Southeast 1 foot at 3 seconds. A slight
chance of showers and thunderstorms.
TONIGHT
South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast to south 1 foot at 3 seconds. A chance of
showers with a slight chance of thunderstorms.
WEDNESDAY
South to southwest winds near 5 knots. Seas 1 foot
or less. Wave Detail: South 1 foot at 3 seconds. A chance of
showers with a slight chance of thunderstorms.
WEDNESDAY NIGHT
South to southwest winds near 5 knots,
becoming south. Seas around 1 foot. Showers likely with a slight
chance of thunderstorms.
THURSDAY
Southeast to south winds 5 to 10 knots. Seas around
1 foot. Showers likely with a slight chance of thunderstorms.
THURSDAY NIGHT
Southeast winds 5 to 10 knots, increasing to
near 10 knots. Seas around 1 foot. A chance of showers and
thunderstorms.
FRIDAY
Southeast winds increasing to near 10 knots. Seas
around 1 foot, building to 1 to 2 feet. A slight chance of
showers and thunderstorms.
FRIDAY NIGHT
East to southeast winds near 10 knots, increasing
to 10 to 15 knots. Seas building to 1 to 2 feet, building to 2 to
3 feet. A chance of showers and thunderstorms.
SATURDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers and thunderstorms.
SATURDAY NIGHT
Southeast winds 10 to 15 knots. Seas 2 to 3
feet. A chance of showers and thunderstorms.
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