NWS Marine Forecast

   GMZ005-010230-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1019 AM EDT Sat Oct 31 2026      .SYNOPSIS...  A broad area of high pressure over the eastern United States will  sustain moderate to fresh breezes across the Florida Keys waters  this weekend. Small Craft Should Exercise Caution headlines may be  required for portions or all marine zones tonight. Breezes are on  track to slacken tomorrow, but elevated winds along the Florida  Peninsula will generate higher northerly swell for the waters  south of the Upper Keys. After the initial higher winds tonight,  breezes will slacken during the weekend. Light to gentle breezes  are possible midweek. Shower chances are expected to peak tomorrow  through Monday with drier conditions during the middle of the  week.    The Approximate Shoreward Edge of the Gulf Stream as of October  27, 2026...    19 NM south of Dry Tortugas Light, on Loggerhead Key  34 NM south of Cosgrove Shoal Light, off the Marquesas Keys  28 NM south of Sand Key Light, off Key West  38 NM south of Looe Key, off Big Pine Key  31 NM southeast of Sombrero Key Light, off Marathon  17 NM south-southeast of Alligator Reef Light, off Islamorada  10 NM southeast of Molasses Reef Light, off Key Largo  10 NM northwest 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.    $$

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   GMZ033-034-010230-  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-  1019 AM EDT Sat Oct 31 2026    THIS AFTERNOON  Northeast to east winds near 15 knots. Seas  around 2 feet, building to 2 to 3 feet. Wave Detail: North to  northeast 3 feet at 5 seconds. A chance of showers with a slight  chance of thunderstorms.  TONIGHT  East winds increasing to 15 to 20 knots. Seas building  to 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet  at 5 seconds. A chance of showers with a slight chance of  thunderstorms.  SUNDAY  East winds near 15 knots, decreasing to 10 to 15 knots.  Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3  feet at 5 seconds. Showers likely with a chance of thunderstorms.  SUNDAY NIGHT  East winds 10 to 15 knots. Seas subsiding to around  2 feet. Showers likely with a chance of thunderstorms.  MONDAY  East winds 10 to 15 knots. Seas 1 to 2 feet. A chance  of showers and thunderstorms.  MONDAY NIGHT  Northeast to east winds 10 to 15 knots, decreasing  to near 10 knots. Seas 1 to 2 feet. A slight chance of showers.  TUESDAY  East winds decreasing to 5 to 10 knots. Seas subsiding  to around 1 foot. A slight chance of showers.  TUESDAY NIGHT  East winds 5 to 10 knots. Seas around 1 foot. A  slight chance of showers.  WEDNESDAY  East winds 5 to 10 knots. Seas around 1 foot. A  slight chance of showers and thunderstorms.  WEDNESDAY NIGHT  East winds 5 to 10 knots. Seas around 1 foot.  A slight chance of showers.    $$