GMZ005-220230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1023 AM EDT Sat Jun 21 2025
.SYNOPSIS...High pressure over the eastern seaboard will gradually
build over the next few days. This will result in gentle to
moderate breezes today slowly freshening in response to the
tightening pressure gradient. By Monday and Monday night, breezes
will be fresh to occasionally strong, and Small Craft Should
Exercise Caution headlines may be needed at that time. Thereafter,
breezes will gradually slacken. Multiple pushes of enhanced
moisture will lead to fluctuations in shower activity over the
coming days, but thunderstorm coverage looks like it will remain
isolated.
The Approximate Shoreward Edge of the Gulf Stream as of June 13...
18 NM Southwest of Dry Tortugas Light...on Loggerhead Key.
36 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
33 NM South of Sand Key Light...off Key West.
39 NM South of Looe Key...off Big Pine Key.
25 NM South of Sombrero Key Light...off Marathon.
11 NM Southeast of Alligator Reef Light...off Islamorada.
5 NM Southeast of Molasses Reef Light...off Key Largo.
5 NM East 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.
$$
GMZ052>055-072>075-220230-
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-
1023 AM EDT Sat Jun 21 2025
THIS AFTERNOON
East winds near 10 knots. Seas 1 to 2 feet.
Wave Detail:
East to southeast 2 feet at 4 seconds. Scattered showers and
isolated thunderstorms.
TONIGHT
East winds near 10 knots, increasing to 10 to 15
knots. Seas 1 to 2 feet, building to 2 to 3 feet. Wave Detail:
East 3 feet at 4 seconds. Scattered showers and isolated
thunderstorms.
SUNDAY
East winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: East 2 feet at 4 seconds. Scattered showers and isolated
thunderstorms.
SUNDAY NIGHT
East winds increasing to near 15 knots. Seas 2 to
3 feet. Scattered showers and isolated thunderstorms.
MONDAY
East winds near 15 knots, increasing to 15 to 20 knots.
Seas 2 to 3 feet, building to 3 to 4 feet, occasionally to 5
feet. Scattered showers and isolated thunderstorms.
MONDAY NIGHT
East winds 15 to 20 knots. Seas 3 to 5 feet,
occasionally to 6 feet. Scattered showers and isolated
thunderstorms.
TUESDAY
East winds decreasing to near 15 knots. Seas subsiding
to 3 to 4 feet, occasionally to 5 feet. Scattered showers and
isolated thunderstorms.
TUESDAY NIGHT
East winds near 15 knots, decreasing to 10 to 15
knots. Seas 3 to 4 feet, occasionally to 5 feet, subsiding to 2 to
4 feet. Scattered showers and isolated thunderstorms.
WEDNESDAY AND WEDNESDAY NIGHT
East winds 10 to 15 knots. Seas
2 to 4 feet, occasionally to 5 feet. Scattered showers and
isolated thunderstorms.
$$
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