NWS Marine Forecast


   AMZ500-211915-  Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm  255 AM EDT Mon Sep 21 2026      .SYNOPSIS...Weak onshore flow will continue the next few days,  with scattered to numerous showers and storms. The highest  coverage is generally forecast during the overnight and morning  hours. Later in the week, a frontal passage will increase north-  northeast winds and build seas, creating hazardous conditions,  especially in the Gulf Stream.    .GULF STREAM HAZARDS...None.    The approximate location of the west wall of the Gulf Stream based on  the Real Time Ocean Forecast System as of Monday, September 21st, 2026.    42 nautical miles east of Ponce Inlet.  28 nautical miles east of Port Canaveral.  24 nautical miles east of Sebastian Inlet.  16 nautical miles east of Fort Pierce Inlet.  9 nautical miles east of Saint Lucie Inlet.    $$
   AMZ552-211915-  Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-  255 AM EDT Mon Sep 21 2026    TODAY  Variable winds around 5 knots, becoming northeast 5 to 10  knots this afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet  at 8 seconds and southeast 1 foot at 3 seconds. Smooth on the  intracoastal waters. A chance of showers and thunderstorms.  TONIGHT  Southeast winds around 5 knots, becoming southwest  after midnight. Seas 2 feet. Wave Detail: Northeast 2 feet at  8 seconds and southeast 1 foot at 4 seconds. Smooth on the  intracoastal waters. A slight chance of showers and  thunderstorms.  TUESDAY  Southwest winds around 5 knots, becoming east in the  afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at  8 seconds and southeast 1 foot at 4 seconds. Smooth on the  intracoastal waters. A slight chance of showers and thunderstorms  in the morning, then a chance of showers and thunderstorms in the  afternoon.  TUESDAY NIGHT  Southeast winds around 5 knots, becoming  southwest after midnight. Seas 2 feet. Wave Detail: Northeast  2 feet at 8 seconds and southeast 1 foot at 4 seconds. Smooth on  the intracoastal waters. A chance of showers. A chance of  thunderstorms in the evening, then a slight chance of  thunderstorms after midnight.  WEDNESDAY  Northwest winds around 5 knots, becoming northeast  in the afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at  8 seconds and southeast 1 foot at 4 seconds. A light chop on the  intracoastal waters. A chance of showers. A slight chance of  thunderstorms in the morning, then a chance of thunderstorms in  the afternoon.  WEDNESDAY NIGHT  East winds around 5 knots, becoming north  after midnight. Seas 2 feet. Wave Detail: Northeast 2 feet at  8 seconds and southeast 1 foot at 4 seconds. Mostly smooth on the  intracoastal waters. A chance of showers. A chance of  thunderstorms in the evening, then a slight chance of  thunderstorms after midnight.  THURSDAY  North winds 10 to 15 knots, increasing to 15 to  20 knots in the afternoon. Seas 2 to 3 feet, building to 3 to  5 feet, occasionally to 6 feet in the afternoon. Choppy on the  intracoastal waters. A chance of thunderstorms. A chance of  showers in the morning, then showers likely in the afternoon.  THURSDAY NIGHT  North winds 15 to 20 knots. Seas 4 to 6 feet,  occasionally to 8 feet. Choppy on the intracoastal waters. A  chance of showers and thunderstorms in the evening, then a slight  chance of showers and thunderstorms after midnight.  FRIDAY  North winds 15 to 20 knots, increasing to 20 to  25 knots in the afternoon. Seas 6 to 8 feet, occasionally to  10 feet. Rough on the intracoastal waters. A chance of showers. A  slight chance of thunderstorms in the morning, then a chance of  thunderstorms in the afternoon.  FRIDAY NIGHT  North winds 15 to 20 knots. Seas 6 to 7 feet,  occasionally to 9 feet. Choppy on the intracoastal waters. A  chance of showers in the evening.    Winds and waves higher in and near thunderstorms.    $$