NWS Marine Forecast


   GMZ005-250945-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  433 PM EST Wed Dec 24 2025      .SYNOPSIS...High pressure across the Southeast United States will  continue to meander slowly to the northeastern Gulf through  Christmas morning. This will promote moderate to fresh northeast  to east breezes across the Keys marine zones. The high will weaken  as it continues to drift slowly southeastward through the  weekend, leading to slackening breezes. A potentially strong cold  front is progged to push through the Florida Keys coastal waters  early next week, with freshening northerlies breezes and building  seas expected in its wake.    The Approximate Shoreward Edge of the Gulf Stream as of December  21...    24 NM South of Dry Tortugas Light...on Loggerhead Key.  14 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  14 NM South of Sand Key Light...off Key West.  16 NM South of Looe Key...off Big Pine Key.  17 NM Southeast of Sombrero Key Light...off Marathon.  18 NM Southeast of Alligator Reef Light...off Islamorada.  11 NM Southeast of Molasses Reef Light...off Key Largo.  6 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.    $$
   GMZ033-034-250945-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  433 PM EST Wed Dec 24 2025    TONIGHT  Northeast to east winds 10 to 15 knots. Seas 2 to 3  feet. Wave Detail: Northeast to east 3 feet at 4 seconds.  THURSDAY  Northeast to east winds 10 to 15 knots, becoming  north to northeast and decreasing to near 10 knots. Seas 2 to 3  feet. Wave Detail: Northeast 3 feet at 4 seconds. Isolated  showers.  THURSDAY NIGHT  North to northeast winds 5 to 10 knots,  increasing to near 10 knots. Wave Detail: North to northeast 2  feet at 4 seconds. Seas 1 to 2 feet.  FRIDAY  North to northeast winds near 10 knots, decreasing to 5  to 10 knots. Seas subsiding to around 1 foot.  FRIDAY NIGHT  North to northeast winds near 5 knots. Seas around  1 foot.  SATURDAY  North to northeast winds near 5 knots, becoming  northeast. Seas 1 foot or less.  SATURDAY NIGHT  Northeast winds near 5 knots. Seas 1 foot or  less.  SUNDAY  Northeast to east winds 5 to 10 knots. Seas around 1  foot.  SUNDAY NIGHT  Northeast winds near 5 knots, becoming north.  Seas 1 foot or less.  MONDAY  Northwest to north winds near 5 knots, increasing to 5  to 10 knots. Seas around 1 foot.  MONDAY NIGHT  Northwest to north winds near 10 knots, increasing  to near 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet.  Isolated showers.    $$