NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
 Hazardous Weather Outlook
   GMZ005-200900-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1019 PM EDT Sun May 19 2024      .SYNOPSIS...The western extent of a low-level ridge axis that  extends west-northwest has begun to loosen its grip across the  Florida Keys. At the same time a frontal boundary is sliding south  across the Florida Peninsula, which has shifted breezes from the  northwest. These breezes will briefly go light and variable  overnight before becoming south to southwest by Monday morning.  Lastly, there may be a break in the rain-free conditions tonight  through Tuesday, followed by variable breezes turning to the east  Wednesday through Thursday.    The Approximate Shoreward Edge of the Gulf Stream as of May 15,  2024...    49 NM South of Dry Tortugas Light...on Loggerhead Key.  32 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  24 NM South of Sand Key Light...off Key West.  27 NM South of Looe Key...off Big Pine Key.  29 NM South of Sombrero Key Light...off Marathon.  8 NM Southeast of Alligator Reef Light...off Islamorada.  3 NM Southeast of Molasses Reef Light...off Key Largo.    Gulf Stream Information Courtesy of the National Weather Service in  Key West.    $$
   GMZ052>055-072>075-200900-  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-  1019 PM EDT Sun May 19 2024    OVERNIGHT  Variable winds 5 to 10 knots, becoming southeast to  south. Seas around 1 foot. Wave Detail: East 1 foot at 5 seconds  and northwest 1 foot at 3 seconds. Winds and seas higher in and  around scattered showers and thunderstorms.  MONDAY  South to southwest winds 5 to 10 knots, becoming west  to northwest in the afternoon. Seas around 1 foot. Wave Detail:  Northwest 1 foot at 4 seconds and east to southeast 1 foot at 4  seconds. Scattered showers and isolated thunderstorms.  MONDAY NIGHT  Northwest winds 5 to 10 knots. Seas around  1 foot. Wave Detail: Northwest 1 foot at 3 seconds. Scattered  showers and isolated thunderstorms.  TUESDAY  Northwest to north winds near 5 knots, becoming  variable. Seas around 1 foot. Scattered showers and isolated  thunderstorms.  TUESDAY NIGHT  Variable winds near 5 knots, becoming northeast  to east. Seas around 1 foot. Scattered showers and isolated  thunderstorms.  WEDNESDAY  East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated  showers and thunderstorms.  WEDNESDAY NIGHT  Northeast to east winds near 10 knots,  increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 1 to  3 feet. Isolated showers and thunderstorms.  THURSDAY  East winds near 10 knots, becoming northeast to east  and increasing to 10 to 15 knots. Seas 1 to 3 feet. Isolated  showers and thunderstorms.  THURSDAY NIGHT  Northeast to east winds 10 to 15 knots, becoming  east and decreasing to near 10 knots. Seas 2 to 3 feet. Isolated  showers and thunderstorms.  FRIDAY  East winds 5 to 10 knots, becoming northeast to east and  increasing to near 10 knots. Seas around 2 feet. Isolated showers  and thunderstorms.  FRIDAY NIGHT  Northeast to east winds 10 to 15 knots, becoming  east to southeast. Seas 2 to 3 feet. Isolated showers and  thunderstorms.    $$