GMZ005-131545-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 1042 PM EST Fri Dec 12 2025
 
 
 .SYNOPSIS...High pressure drifting eastward into the western
 North Atlantic will result in gentle to moderate, occasionally
 fresh, northeast to east breezes overnight. 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 Saturday 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.
 
 $$



   GMZ034-131545-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  1042 PM EST Fri Dec 12 2025    SMALL CRAFT SHOULD EXERCISE CAUTION    OVERNIGHT  East winds 15 to 20 knots. Seas 2 to 4 feet. Wave  Detail: East 2 feet at 3 seconds and northwest 2 feet at 6  seconds. Isolated showers.  SATURDAY  Northeast to east winds near 15 knots. Seas 2 to 4  feet. Wave Detail: Northeast to east 2 feet at 4 seconds and  northwest 1 foot at 5 seconds. Isolated showers. Isolated showers  and thunderstorms in the afternoon.  SATURDAY NIGHT  East winds 10 to 15 knots, decreasing to 5 to  10 knots after midnight. Seas subsiding to 1 to 2 feet. Wave  Detail: East 2 feet at 4 seconds. Numerous showers and scattered  thunderstorms.  SUNDAY  North to northeast winds 5 to 10 knots, increasing to 10  to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Scattered  showers and isolated thunderstorms.  SUNDAY NIGHT  North to northeast winds 15 to 20 knots. Seas  building to 3 to 5 feet, occasionally to 6 feet. Isolated  showers.  MONDAY  Northeast winds near 20 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Isolated showers.  MONDAY NIGHT  Northeast winds near 20 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Isolated showers.  TUESDAY  Northeast to east winds near to 20 knots, decreasing to 15  to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated  showers.  TUESDAY NIGHT  Northeast to east winds 15 to 20 knots. Seas  2 to 4 feet, occasionally to 5 feet. Isolated showers.  WEDNESDAY AND WEDNESDAY NIGHT  East winds near 15 knots. Seas 2  to 3 feet. Isolated showers.    $$