GMZ005-132145-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
431 AM EST Sat Dec 13 2025
.SYNOPSIS...Moderate to occasionally fresh northeast to easterly
breezes will slightly slacken over the day into tonight. The next
frontal boundary is progged to push through the Florida Keys
marine zones on Sunday night. Ahead of the front, elevated chances
for showers and thunderstorms will be possible late tonight
through early Sunday. In the wake of the frontal passage, fresh to
strong northeasterly breezes are expected Sunday night through at
least Tuesday.
The Approximate Shoreward Edge of the Gulf Stream as of December 8...
15 NM South of Dry Tortugas Light...on Loggerhead Key.
13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
14 NM South of Sand Key Light...off Key West.
18 NM South of Looe Key...off Big Pine Key.
23 NM Southeast of Sombrero Key Light...off Marathon.
18 NM Southeast of Alligator Reef Light...off Islamorada.
12 NM Southeast of Molasses Reef Light...off Key Largo.
8 NM Southeast 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 and RTOFS.
$$
GMZ052>055-072>075-132145-
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 AM EST Sat Dec 13 2025
.SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE...
TODAY
Northeast to east winds 15 to 20 knots, decreasing to
near 15 knots. Seas 2 to 4 feet, occasionally 5 feet. Wave Detail:
East 3 feet at 5 seconds and northwest 1 foot at 5 seconds.
Numerous showers and isolated thunderstorms in the afternoon.
TONIGHT
East winds near 15 knots, decreasing to 10 to 15
knots. Seas 2 to 4 feet, occasionally 5 feet. Wave Detail: East 3
feet at 5 seconds. Widespread showers and scattered thunderstorms.
SUNDAY
North to northeast winds near 10 knots, increasing to 10
to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 2
feet at 5 seconds. Scattered showers and isolated thunderstorms.
SUNDAY NIGHT
North winds 15 to 20 knots, becoming north to
northeast and increasing to near 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet, building to 3 to 5 feet, occasionally 6
feet. Scattered showers.
MONDAY
Northeast winds near 20 knots. Seas 5 to 7 feet,
occasionally to 9 feet. Isolated showers.
MONDAY NIGHT
Northeast to east winds near 20 knots. Seas 5 to
7 feet, occasionally to 9 feet. Scattered showers.
TUESDAY
Northeast to east winds near 20 knots. Seas 5 to 7
feet, occasionally to 9 feet. Isolated showers.
TUESDAY NIGHT
Northeast to east winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet. Isolated showers.
WEDNESDAY
East winds 15 to 20 knots, decreasing to near 15
knots. Seas 4 to 5 feet, occasionally to 6 feet. Isolated showers.
WEDNESDAY NIGHT
East winds near 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. Isolated showers.
$$
|
