209 FZUS52 KMLB 270846 CWFMLB Coastal Waters Forecast for East Central Florida National Weather Service Melbourne FL 446 AM EDT Sat Sep 27 2025 Atlantic coastal waters from Flagler Beach to Jupiter Inlet out 60 nm. Seas are provided as a range of the average height of the highest one third of the waves, along with the occasional height of the average highest ten percent of the waves. ANZ500-272100- Synopsis for Flagler Beach to Jupiter Inlet out to 60 nm 446 AM EDT Sat Sep 27 2025 .SYNOPSIS...A cold front moving towards the Florida peninsula is forecast to stall early this weekend through early next week. Boating conditions are anticipated to deteriorate late this weekend into early next week as Potential Tropical Cyclone 9 develops and strengthens across the southwestern Atlantic, moving northward parallel to the Florida coast. Mariners are strongly encouraged to continue monitoring the forecast. .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 Saturday, September 27th, 2025. 39 nautical miles east of Ponce Inlet. 29 nautical miles east of Port Canaveral. 24 nautical miles east of Sebastian Inlet. 17 nautical miles east of Fort Pierce Inlet. 12 nautical miles east of Saint Lucie Inlet. $$ AMZ550-272100- Flagler Beach to Volusia-Brevard County Line 0-20 nm- 446 AM EDT Sat Sep 27 2025 .TODAY...South winds around 5 knots, becoming southeast this afternoon. Seas 2 feet. Wave Detail: East 2 feet at 8 seconds. A light chop on the intracoastal waters. A chance of showers and thunderstorms this morning, then showers and thunderstorms likely this afternoon. .TONIGHT...Southeast winds 5 to 10 knots, becoming northeast after midnight. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds and east 1 foot at 12 seconds. Mostly smooth on the intracoastal waters. Showers likely. Thunderstorms likely in the evening, then a chance of thunderstorms after midnight. .SUNDAY...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 2 to 3 feet, building to 4 to 5 feet, occasionally to 6 feet in the afternoon. Wave Detail: East 5 feet at 11 seconds in the afternoon. Choppy on the intracoastal waters. Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 7 feet at 10 seconds and east 1 foot at 16 seconds. Choppy on the intracoastal waters. Showers likely with a chance of thunderstorms. .MONDAY...Tropical storm conditions possible. North winds 20 to 25 knots. Seas 8 to 10 feet, occasionally to 13 feet, building to 10 to 12 feet, occasionally to 15 feet in the afternoon. Wave Detail: Northeast 11 feet at 11 seconds and east 3 feet at 15 seconds in the afternoon. Rough on the intracoastal waters. A chance of showers and thunderstorms. .MONDAY NIGHT...Tropical storm conditions possible. .TUESDAY...Tropical storm conditions possible. .TUESDAY NIGHT...Northwest winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 6 to 8 feet, occasionally to 10 feet. Choppy on the intracoastal waters. A slight chance of thunderstorms. A chance of showers in the evening, then a slight chance of showers after midnight. .WEDNESDAY...Northwest winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 6 to 8 feet, occasionally to 10 feet. Choppy on the intracoastal waters. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...North winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 7 to 8 feet, occasionally to 10 feet. Choppy on the intracoastal waters. A chance of showers with a slight chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ552-272100- Volusia-Brevard County Line to Sebastian Inlet 0-20 nm- 446 AM EDT Sat Sep 27 2025 .TODAY...South winds around 5 knots, becoming southeast this afternoon. Seas 2 feet. Wave Detail: East 2 feet at 8 seconds. A light chop on the intracoastal waters. A chance of showers and thunderstorms. .TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 8 seconds and east 1 foot at 12 seconds. Mostly smooth on the intracoastal waters. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: East 5 feet at 11 seconds. Choppy on the intracoastal waters. Showers with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SUNDAY NIGHT...Tropical storm conditions possible. Northeast winds 15 to 20 knots. Seas 5 to 6 feet, occasionally to 8 feet, building to 6 to 8 feet, occasionally to 10 feet after midnight. Wave Detail: East 8 feet at 10 seconds after midnight. Choppy on the intracoastal waters. Showers likely with a chance of thunderstorms. .MONDAY...Tropical storm conditions possible. North winds 15 to 20 knots, becoming northwest 20 to 25 knots in the afternoon. Seas 8 to 10 feet, occasionally to 13 feet. Wave Detail: East 10 feet at 10 seconds and east 4 feet at 15 seconds. Rough on the intracoastal waters. A chance of showers and thunderstorms. .MONDAY NIGHT...Tropical storm conditions possible. .TUESDAY...West winds 10 to 15 knots. Seas 6 to 8 feet, occasionally to 10 feet. A moderate 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. .TUESDAY NIGHT...West winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. A light chop on the intracoastal waters. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...Northwest winds 10 to 15 knots. Seas 6 to 8 feet, occasionally to 10 feet. A moderate chop on the intracoastal waters. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots. Seas 6 to 8 feet, occasionally to 10 feet. A light chop on the intracoastal waters. A chance of showers with a slight chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ555-272100- Sebastian Inlet to Jupiter Inlet 0-20 nm- 446 AM EDT Sat Sep 27 2025 .TODAY...Southeast winds around 5 knots, becoming east this afternoon. Seas 2 feet. Wave Detail: Northeast 2 feet at 9 seconds and southeast 1 foot at 3 seconds. A light chop on the intracoastal waters. A chance of showers and thunderstorms. .TONIGHT...East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 5 seconds and northeast 2 feet at 9 seconds. Mostly smooth on the intracoastal waters. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 3 to 4 feet, building to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave Detail: Northeast 6 feet at 7 seconds and east 4 feet at 4 seconds in the afternoon. Choppy on the intracoastal waters. Showers with a chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. .SUNDAY NIGHT...Tropical storm conditions possible. North winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to 7 to 9 feet, occasionally to 11 feet after midnight. Wave Detail: Northeast 9 feet at 10 seconds after midnight. Choppy on the intracoastal waters. A chance of thunderstorms. Showers likely in the evening, then a chance of showers after midnight. .MONDAY...Tropical storm conditions possible. Northwest winds 15 to 20 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 9 feet at 10 seconds and east 2 feet at 16 seconds. Choppy on the intracoastal waters. A chance of showers and thunderstorms. .MONDAY NIGHT...West winds 15 to 20 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave Detail: North 8 feet at 10 seconds and east 4 feet at 15 seconds. Choppy on the intracoastal waters. A chance of showers with a slight chance of thunderstorms. .TUESDAY...West winds 10 to 15 knots. Seas 6 to 8 feet, occasionally to 10 feet. A moderate 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. .TUESDAY NIGHT...West winds 10 to 15 knots. Seas 5 to 7 feet, occasionally to 9 feet. A light chop on the intracoastal waters. A slight chance of thunderstorms. A chance of showers in the evening, then a slight chance of showers after midnight. .WEDNESDAY...Northwest winds 10 to 15 knots. Seas 6 to 8 feet, occasionally to 10 feet. A moderate chop on the intracoastal waters. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots. Seas 6 to 8 feet, occasionally to 10 feet. A light chop on the intracoastal waters. A chance of showers with a slight chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$ AMZ570-272100- Flagler Beach to Volusia-Brevard County Line 20-60 nm- 446 AM EDT Sat Sep 27 2025 .TODAY...South winds 5 to 10 knots, becoming southeast this afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds. A chance of showers and thunderstorms. .TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and east 1 foot at 13 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...East winds 10 to 15 knots, becoming northeast 15 to 20 knots in the afternoon. Seas 3 to 4 feet, building to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave Detail: East 6 feet at 11 seconds in the afternoon. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SUNDAY NIGHT...Tropical storm conditions possible. Northeast winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 6 to 8 feet, occasionally to 10 feet, building to 8 to 10 feet, occasionally to 13 feet after midnight. Wave Detail: East 10 feet at 10 seconds and east 1 foot at 16 seconds after midnight. Showers with a chance of thunderstorms. .MONDAY...Tropical storm conditions possible. North winds 30 to 35 knots with gusts up to 45 knots. Seas 11 to 15 feet, occasionally to 19 feet. Wave Detail: Northeast 15 feet at 10 seconds and east 6 feet at 15 seconds. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...Tropical storm conditions possible. .TUESDAY...Tropical storm conditions possible. .TUESDAY NIGHT...Northwest winds 15 to 20 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...Northwest winds 15 to 20 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...North winds 15 to 20 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ AMZ572-272100- Volusia-Brevard County Line to Sebastian Inlet 20-60 nm- 446 AM EDT Sat Sep 27 2025 .TODAY...South winds 5 to 10 knots, becoming southeast this afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 9 seconds and north 1 foot at 7 seconds. A chance of showers and thunderstorms. .TONIGHT...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and east 1 foot at 12 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...East winds 10 to 15 knots, becoming northeast 15 to 20 knots in the afternoon. Seas 3 to 5 feet, occasionally to 6 feet, building to 5 to 7 feet, occasionally to 9 feet in the afternoon. Wave Detail: East 7 feet at 8 seconds in the afternoon. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SUNDAY NIGHT...Tropical storm conditions possible. Northeast winds 15 to 20 knots, increasing to 20 to 25 knots after midnight. Seas 7 to 9 feet, occasionally to 11 feet, building to 9 to 11 feet, occasionally to 14 feet after midnight. Wave Detail: East 11 feet at 10 seconds after midnight. A chance of thunderstorms. Showers. .MONDAY...Tropical storm conditions possible. North winds 30 to 35 knots with gusts up to 45 knots. Seas 11 to 15 feet, occasionally to 19 feet. Wave Detail: Northeast 13 feet at 10 seconds and east 6 feet at 15 seconds. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...Tropical storm conditions possible. .TUESDAY...Tropical storm conditions possible. .TUESDAY NIGHT...West winds 15 to 20 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...Northwest winds 15 to 20 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northwest winds around 15 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$ AMZ575-272100- Sebastian Inlet to Jupiter Inlet 20-60 nm- 446 AM EDT Sat Sep 27 2025 .TODAY...Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 2 feet at 9 seconds and south 1 foot at 3 seconds. A chance of showers and thunderstorms. .TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds and east 2 feet at 9 seconds. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. .SUNDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, building to 6 to 7 feet, occasionally to 9 feet in the afternoon. Wave Detail: Northeast 7 feet at 7 seconds in the afternoon. Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. .SUNDAY NIGHT...Tropical storm conditions possible. North winds 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet, building to 10 to 12 feet, occasionally to 15 feet after midnight. Wave Detail: Northeast 11 feet at 10 seconds and north 5 feet at 6 seconds after midnight. A chance of thunderstorms. Showers. .MONDAY...Tropical storm conditions possible. Northwest winds 20 to 25 knots. Seas 10 to 12 feet, occasionally to 15 feet. Wave Detail: Northeast 10 feet at 9 seconds and northwest 5 feet at 6 seconds. Showers likely with a chance of thunderstorms. .MONDAY NIGHT...West winds 15 to 20 knots. Seas 10 to 13 feet, occasionally to 17 feet. Wave Detail: North 11 feet at 10 seconds and east 5 feet at 15 seconds. A chance of showers with a slight chance of thunderstorms. .TUESDAY...West winds 15 to 20 knots. Seas 10 to 12 feet, occasionally to 15 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .TUESDAY NIGHT...West winds around 15 knots. Seas 8 to 10 feet, occasionally to 13 feet. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...West winds 10 to 15 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northwest winds 10 to 15 knots. Seas 9 to 11 feet, occasionally to 14 feet. A chance of showers with a slight chance of thunderstorms. Winds and seas higher in and near thunderstorms. $$