NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
   GMZ005-050330-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1025 AM EST Wed Nov 4 2026      .SYNOPSIS...  The flanks of a robust high pressure system offshore the Mid  Atlantic States will be will eroded by a low over the  northeastern United States and a deepening low well northeast of  the Bahamas. As a result, northeast to east breezes will undergo a  cycle of peaks and lulls as breezes fluctuate between light to  gentle and gentle to moderate through the remainder of the week.  In addition, drier air will be filtering in through the afternoon  and evening, leading to diminishing rain chances. A surface high  will develop across the Gulf beginning Friday, which may lead to  brief nocturnal wind surges along the west coast of Florida and  into the outer Gulf waters.      The Approximate Shoreward Edge of the Gulf Stream as of November  03, 2026...    57 NM south of Dry Tortugas Light, on Loggerhead Key  34 NM south of Cosgrove Shoal Light, off the Marquesas Keys  25 NM south of Sand Key Light, off Key West  17 NM south of Looe Key, off Big Pine Key  17 NM southeast of Sombrero Key Light, off Marathon  28 NM south-southeast of Alligator Reef Light, off Islamorada  26 NM southeast of Molasses Reef Light, off Key Largo  12 NM east-southeast 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.    $$
   GMZ052>055-072>075-050330-  Straits of Florida from Ocean Reef to Craig Key out 20 NM-  Straits of Florida from Craig Key to west end of Seven Mile  Bridge out 20 NM-  Straits of Florida from west end of Seven Mile Bridge to south of  Halfmoon Shoal out 20 NM-  Straits of Florida from Halfmoon Shoal to 20 NM west of Dry  Tortugas out 20 NM-  Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-  Straits of Florida from Craig Key to west end of Seven Mile  Bridge 20 to 60 NM out-  Straits of Florida from west end of Seven Mile Bridge to south of  Halfmoon Shoal 20 to 60 NM out-  Straits of Florida from Halfmoon Shoal to 20 NM west of Dry  Tortugas 20 to 60 NM out-  1025 AM EST Wed Nov 4 2026    THIS AFTERNOON  Northeast to east winds near 10 knots. Seas  around 2 feet, subsiding to 1 to 2 feet. Wave Detail: Northeast  to east 2 feet at 6 seconds. A slight chance of showers and  thunderstorms.  TONIGHT  Northeast to east winds near 10 knots. Seas 1 to  2 feet. Wave Detail: Northeast to east 2 feet at 5 seconds. A  slight chance of showers and thunderstorms.  THURSDAY  Northeast to east winds near 10 knots. Seas around 2  feet. Wave Detail: Northeast to east 2 feet at 5 seconds. A  slight chance of showers and thunderstorms.  THURSDAY NIGHT  Northeast to east winds 10 to 15 knots. Seas  2 to 3 feet. A slight chance of showers and thunderstorms.  FRIDAY  Northeast winds near 10 knots, decreasing to 5 to 10  knots. Seas 1 to 2 feet.  FRIDAY NIGHT AND SATURDAY  Northeast winds 5 to 10 knots. Seas  1 to 2 feet.  SATURDAY NIGHT  Northeast winds 5 to 10 knots. Seas around  1 foot. A slight chance of showers.  SUNDAY  Northeast winds 5 to 10 knots. Seas around 1 foot.  SUNDAY NIGHT  North to northeast winds near 10 knots. Seas 1 to  2 feet. A slight chance of showers.    $$