GMZ005-170845-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
431 PM EDT Tue Jun 16 2026
.SYNOPSIS...A weak high pressure system in the central North
Atlantic will support light to gentle breezes persisting through
Wednesday across the Florida Keys coastal waters. The high
will begin to strengthen Wednesday night, supporting slightly
freshened breezes through the end of the work week. As a weak
frontal boundary approaches the Florida Peninsula, the high will
once again weaken, supporting a return to light to gentle breezes
for the weekend.
The Approximate Shoreward Edge of the Gulf Stream as of June 15...
28 NM South of Dry Tortugas Light...on Loggerhead Key.
12 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
11 NM South of Sand Key Light...off Key West.
14 NM South of Looe Key...off Big Pine Key.
13 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
4 NM Southeast of Molasses Reef Light...off Key Largo.
3 NM East 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>075-170845-
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-
431 PM EDT Tue Jun 16 2026
TONIGHT
Southeast winds near 10 knots, becoming east to
southeast and decreasing to 5 to 10 knots. Seas around 2 feet,
subsiding to 1 to 2 feet. Wave Detail: East to southeast 2 feet
at 4 seconds. A slight chance of showers and thunderstorms.
WEDNESDAY
Southeast to south winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: Southeast 1 foot at 4 seconds. A slight
chance of showers and thunderstorms in the morning.
WEDNESDAY NIGHT
Southeast winds near 10 knots. Seas around 2
feet. Wave Detail: East to southeast 2 feet at 3 seconds. A slight
chance of showers and thunderstorms.
THURSDAY
East to southeast winds near 10 knots. Seas around 2
feet. A slight chance of showers and thunderstorms.
THURSDAY NIGHT
East to southeast winds 10 to 15 knots. Seas
2 to 3 feet. A slight chance of showers and thunderstorms.
FRIDAY
Southeast winds near 10 knots. Seas around 2 feet. A
slight chance of showers and thunderstorms.
FRIDAY NIGHT
East to southeast winds 10 to 15 knots. Seas 2 to
3 feet.
SATURDAY
East to southeast winds near 10 knots, becoming
northeast to east and decreasing to 5 to 10 knots. Seas around 2
feet, subsiding to 1 to 2 feet.
SATURDAY NIGHT
Northeast to east winds 5 to 10 knots, becoming
southeast. Seas 1 to 2 feet.
SUNDAY
East to southeast winds near 5 knots. Seas around 1
foot.
SUNDAY NIGHT
East winds 5 to 10 knots. Seas around 1 foot. A
slight chance of showers.
$$
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