NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
   GMZ005-031430-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1018 PM EDT Sun Aug 2 2026      .SYNOPSIS...Light to gentle breezes will continue into early next  week with some occasional periods of gentle to moderate. In  addition, rain chances will also be increasing by next week as  deeper moisture spreads into the region ahead of a frontal  boundary approaching northern Florida. As chances for showers and  thunderstorms increase next week, mariners can expect higher winds  and seas near this activity.    The Approximate Shoreward Edge of the Gulf Stream as of  July 31, 2026...    31 NM South of Dry Tortugas Light...on Loggerhead Key.  24 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  25 NM South of Sand Key Light...off Key West.  2 NM South of Looe Key...off Big Pine Key.  1 NM South of Sombrero Key Light...off Marathon.  5 NM Southeast of Alligator Reef Light...off Islamorada.  2 NM Southeast of Molasses Reef Light...off Key Largo.  1 NM 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.    $$
   GMZ033-034-031430-  Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM  out and beyond 5 fathoms-  Gulf of America including Dry Tortugas and Rebecca Shoal Channel-  1018 PM EDT Sun Aug 2 2026    OVERNIGHT  Variable winds near 5 knots early, becoming  southeast 5 to 10 knots. Seas 1 to 2 feet. Wave Detail:  Southeast 1 foot at 2 seconds and northwest 1 foot at 5 seconds.  A slight chance of showers and thunderstorms.  MONDAY  South to southwest winds 5 to 10 knots, becoming  southwest to west. Seas 1 to 2 feet. Wave Detail: Southeast to  south 1 foot at 3 seconds and northwest 1 foot at 6 seconds. A  chance of showers with a slight chance of thunderstorms.  MONDAY NIGHT  East winds near 5 to 10 knots, becoming southeast  to south. Seas 1 to 2 feet. Wave Detail: Southeast 1 foot at 3  seconds and west to northwest 1 foot at 6 seconds. A chance of  showers with a slight chance of thunderstorms.  TUESDAY  Southeast to south winds near 5 knots, becoming  northeast to east. Seas around 1 foot. A chance of showers and  thunderstorms.  TUESDAY NIGHT AND WEDNESDAY  East winds 5 to 10 knots. Seas 1  to 2 feet. Showers likely with a chance of thunderstorms.  WEDNESDAY NIGHT AND THURSDAY  East winds 10 to 15 knots. Seas 1  to 3 feet. A chance of showers and thunderstorms.  THURSDAY NIGHT  East winds 10 to 15 knots. Seas 1 to 3 feet.  Showers likely with a chance of thunderstorms.  FRIDAY  East winds 5 to 10 knots. Seas 1 to 2 feet. Showers and  thunderstorms likely.  FRIDAY NIGHT  East winds 10 to 15 knots. Seas 2 to 3 feet.  Showers likely with a chance of thunderstorms.    $$