GMZ005-182030-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 417 AM EDT Mon May 18 2026
 
 
 .SYNOPSIS...High pressure centered near Bermuda will continue to
 promote moderate to fresh east to southeast breezes for today and
 tonight. Breezes then undergo a very slow slackening process with
 peaks expected during the evenings and lulls during the day. Rain
 and thunder chances will remain above normal through much of the
 week.
 
 The Approximate Shoreward Edge of the Gulf Stream as of May 12...
 
 35 NM South of Dry Tortugas Light...on Loggerhead Key.
 9 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 6 NM South of Sand Key Light...off Key West.
 7 NM South of Looe Key...off Big Pine Key.
 6 NM Southeast of Sombrero Key Light...off Marathon.
 6 NM Southeast of Alligator Reef Light...off Islamorada.
 4 NM Southeast of Molasses Reef Light...off Key Largo.
 3 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.
 
 $$



   GMZ032-035-182030-  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-  417 AM EDT Mon May 18 2026    SMALL CRAFT SHOULD EXERCISE CAUTION    TODAY  East to southeast winds 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 choppy. A chance of showers with  a slight chance of thunderstorms.  TONIGHT  East winds 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 choppy. A chance of showers with a slight chance  of thunderstorms.  TUESDAY  East winds near 15 knots. Seas 1 to 2 feet, except  2 to 3 feet west of the Marquesas Keys. Nearshore waters a  moderate chop. A chance of showers with a slight chance of  thunderstorms.  TUESDAY NIGHT  East winds 15 to 20 knots, decreasing to near 15  knots. Seas 1 to 2 feet, except 2 to 4 feet, occasionally to 5  feet west of the Marquesas Keys. Nearshore waters choppy,  becoming a moderate chop. A chance of showers with a slight chance  of thunderstorms.  WEDNESDAY  East 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 with a slight chance of  thunderstorms.  WEDNESDAY NIGHT  East winds near 15 knots, decreasing to 10 to  15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the  Marquesas Keys. Nearshore waters a moderate chop, becoming a light  to moderate chop. A slight chance of showers and thunderstorms.  THURSDAY  East winds near 10 knots. Seas 1 to 2 feet. Nearshore  waters a light chop. A slight chance of showers and  thunderstorms.  THURSDAY NIGHT  East to southeast winds near 10 knots. Seas 1  to 2 feet. Nearshore waters a light chop. A slight chance of  showers.  FRIDAY  East to southeast winds 5 to 10 knots. Seas around 1  foot. Nearshore waters smooth to a light chop. A slight chance of  showers and thunderstorms.  FRIDAY NIGHT  East to southeast winds near 10 knots. Seas  around 1 foot, except building to 1 to 2 feet west of the  Marquesas Keys. Nearshore waters a light chop. A slight chance of  showers and thunderstorms.    $$