NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
 Small Craft Advisory
   GMZ005-262045-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  439 AM EDT Tue May 26 2026      .SYNOPSIS...An Atlantic high pressure system centered near  Bermuda will support fresh east to southeast breezes through  tonight. A Small Craft Advisory is in effect Breezes will  noticeably slacken and veer to the southeast to south as the high  slides eastward and weakens by the middle of the week. Shower and  thunderstorm chances will increase for the middle and latter part  of the work week.    The Approximate Shoreward Edge of the Gulf Stream as of May 22...    22 NM South of Dry Tortugas Light...on Loggerhead Key.  9 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  8 NM South of Sand Key Light...off Key West.  8 NM South of Looe Key...off Big Pine Key.  6 NM Southeast of Sombrero Key Light...off Marathon.  4 NM Southeast of Alligator Reef Light...off Islamorada.  1 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 based on products from NASA SPoRT and RTOFS.    $$
   GMZ032-035-262045-  Bayside and Gulfside from Craig Key to west end of Seven Mile  Bridge-  Gulf of America from west end of Seven Mile Bridge to Halfmoon  Shoal out to 5 Fathoms-  439 AM EDT Tue May 26 2026    SMALL CRAFT ADVISORY IN EFFECT    TODAY  East to southeast winds near 20 knots, decreasing to 15  to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to  5 feet west of the Marquesas Keys. Nearshore waters rough,  becoming choppy. A slight chance of showers and thunderstorms.  TONIGHT  East to southeast winds 15 to 20 knots. Seas 1 to  2 feet, except 3 to 4 feet, occasionally to 5 feet west of the  Marquesas Keys. Nearshore waters choppy. A chance of showers and  thunderstorms.  WEDNESDAY  East to southeast winds near 15 knots, decreasing to  10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate  chop, becoming a light to moderate chop. A chance of showers and  thunderstorms.  WEDNESDAY NIGHT  Southeast winds 10 to 15 knots. Seas 1 to 2  feet. Nearshore waters a light to moderate chop. A chance of  showers and thunderstorms.  THURSDAY  Southeast winds 5 to 10 knots. Seas around 1 foot.  Nearshore waters smooth to a light chop. A chance of showers and  thunderstorms.  THURSDAY NIGHT  Southeast winds near 5 knots. Seas 1 foot or  less. Nearshore waters smooth. A slight chance of showers and  thunderstorms.  FRIDAY  Southeast to south winds near 5 knots. Seas 1 foot or  less. Nearshore waters smooth. A slight chance of showers and  thunderstorms.  FRIDAY NIGHT  Southeast to south winds 5 to 10 knots. Seas  1 foot or less, building to around 1 foot. Nearshore waters  smooth to a light chop. A chance of thunderstorms. A chance of  showers.  SATURDAY  Southeast to south winds near 10 knots. Seas around 1  foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore  waters a light chop. Showers likely with a chance of  thunderstorms.  SATURDAY NIGHT  Southeast to south winds 10 to 15 knots. Seas  1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys.  Nearshore waters a light to moderate chop. A chance of showers and  thunderstorms.    $$