Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
194 FZUS52 KKEY 180834 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 434 AM EDT Fri Oct 18 2024 Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef to south of Dry Tortugas, and the extreme southeastern Gulf of Mexico, including The Florida Keys National Marine Sanctuary Seas are given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. Wave Detail will include details about the period and direction of origin for the highest energy waves. Long-period swells coming from a different direction than the wind would be included in the Wave Detail. GMZ005-181430- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 434 AM EDT Fri Oct 18 2024 .SYNOPSIS...A sprawling autumn high pressure system over the eastern United States will maintain strong northeast to east breezes, possibly near gale force tonight. Breezes will only modestly slacken for early next week, when fresh to strong northeasterly breezes are expected. The Approximate Shoreward Edge of the Gulf Stream as of October 16... 18 NM South of Dry Tortugas Light...on Loggerhead Key. 11 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 11 NM South of Sand Key Light...off Key West. 28 NM South of Looe Key...off Big Pine Key. 38 NM South of Sombrero Key Light...off Marathon. 19 NM Southeast of Alligator Reef Light...off Islamorada. 11 NM Southeast of Molasses Reef Light...off Key Largo. 9 NM East of Carysfort Reef Light...off Ocean Reef. Gulf Stream Information Courtesy of the National Weather Service in Key West based on products from the Real Time Ocean Forecast System. $$ GMZ031-181430- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 434 AM EDT Fri Oct 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... ...GALE WATCH IN EFFECT... .TODAY...Northeast winds 20 to 25 knots, increasing to near 25 knots. Bay waters very rough, becoming extremely rough. Areas of rain, scattered showers, and isolated thunderstorms developing later this morning. .TONIGHT...Northeast to east winds 20 to 25 knots. Bay waters very rough. Areas of rain, scattered showers, and isolated thunderstorms. .SATURDAY...Northeast to east winds 20 to 25 knots. Bay waters very rough. Scattered showers. .SATURDAY NIGHT...Northeast winds 20 to 25 knots, decreasing near 20 knots. Bay waters very rough, becoming rough. Isolated showers. .SUNDAY...Northeast to east winds 15 to 20 knots. Bay waters choppy. Isolated showers. .SUNDAY NIGHT...Northeast winds 15 to 20 knots. Bay waters choppy. Isolated showers. .MONDAY THROUGH TUESDAY NIGHT...Northeast to east winds 15 to 20 knots. Bay waters choppy. Isolated showers. $$ GMZ032-035-181430- Bayside and Gulf side from Craig Key to west end of Seven Mile Bridge- Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 434 AM EDT Fri Oct 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... ...GALE WATCH IN EFFECT... .TODAY...Northeast winds 25 to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 8 feet, occasionally to 10 feet west of the Marquesas Keys. Nearshore waters extremely rough. Areas of rain, scattered showers, and isolated thunderstorms developing later today. .TONIGHT...Northeast to east winds 25 to 30 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 7 to 9 feet, occasionally to 11 feet west of the Marquesas Keys. Nearshore waters extremely rough. Areas of rain, scattered showers, and isolated thunderstorms. .SATURDAY...Northeast to east winds near 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters extremely rough. Scattered showers. .SATURDAY NIGHT...Northeast winds near 25 knots, decreasing to 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters extremely rough, becoming very rough. Isolated showers. .SUNDAY...Northeast to east winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. West of the Marquesas Keys, seas 5 to 6 feet, occasionally to 8 feet, subsiding to around 4 feet, occasionally to 5 feet. Nearshore waters rough, becoming choppy. Isolated showers. .SUNDAY NIGHT THROUGH TUESDAY...Northeast winds near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 3 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. Isolated showers. .TUESDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to 3 feet. West of the Marquesas Keys, seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. Isolated showers. $$ GMZ042>044-181430- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 434 AM EDT Fri Oct 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... ...GALE WATCH IN EFFECT... .TODAY...Northeast to east winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 6 to 7 feet, occasionally to 9 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough. Areas of rain, numerous showers, and isolated thunderstorms developing later this morning. .TONIGHT...Northeast to east winds 25 to 30 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 6 to 8 feet, occasionally to 10 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough. Areas of rain, numerous showers, and isolated thunderstorms. .SATURDAY...Northeast to east winds near 25 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 5 to 7 feet, occasionally to 9 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough. Scattered showers. .SATURDAY NIGHT...Northeast winds near 25 knots, decreasing to 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet, except 5 to 7 feet, occasionally to 9 feet west of Cosgrove Shoal Light. Nearshore waters extremely rough, becoming very rough. Isolated showers. .SUNDAY...Northeast to east winds near 20 knots. Seas 3 to 4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough. Isolated showers. .SUNDAY NIGHT THROUGH TUESDAY NIGHT...Northeast winds near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 3 to 5 feet, occasionally to 6 feet west of Cosgrove Shoal Light. Nearshore waters rough. Isolated showers. $$ GMZ052>055-072>075-181430- 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- 434 AM EDT Fri Oct 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... ...GALE WATCH IN EFFECT... .TODAY...Northeast to east winds 25 to 30 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave Detail: Northeast to east 11 feet at 8 seconds. Widespread rain, numerous showers, and isolated thunderstorms developing. .TONIGHT...Northeast to east winds 25 to 30 knots. Seas 8 to 11 feet, occasionally to 14 feet. Wave Detail: Northeast to east 10 feet at 8 seconds. Areas of rain, numerous showers, and isolated thunderstorms. .SATURDAY...Northeast to east winds 25 to 30 knots. Seas 9 to 11 feet, occasionally to 14 feet. Wave Detail: Northeast to east 10 feet at 8 seconds. Numerous showers and isolated thunderstorms. .SATURDAY NIGHT...Northeast to east winds 25 to 30 knots, decreasing to 20 to 25 knots. Seas 8 to 11 feet, occasionally to 14 feet. Isolated showers and thunderstorms. .SUNDAY...Northeast to east winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet. Isolated showers. .SUNDAY NIGHT AND MONDAY...Northeast to east winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Isolated showers. .MONDAY NIGHT...Northeast to east winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Scattered showers. .TUESDAY...Northeast to east winds near 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. Isolated showers. .TUESDAY NIGHT...Northeast winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Scattered showers. $$ GMZ033-034-181430- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 434 AM EDT Fri Oct 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... ...GALE WATCH IN EFFECT... .TODAY...Northeast to east winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 7 feet at 6 seconds. Areas of rain, scattered showers, and isolated thunderstorms developing later today. .TONIGHT...Northeast to east winds 25 to 30 knots. Seas 6 to 9 feet, occasionally to 11 feet. Wave Detail: Northeast 8 feet at 6 seconds. Areas of rain, scattered showers, and isolated thunderstorms. .SATURDAY...Northeast to east winds near 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Northeast 8 feet at 6 seconds. Scattered showers. .SATURDAY NIGHT...Northeast to east winds near 25 knots, decreasing to 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Isolated showers. .SUNDAY...Northeast winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 4 to 7 feet, occasionally to 9 feet. Isolated showers. .SUNDAY NIGHT THROUGH TUESDAY NIGHT...Northeast to east winds near 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Isolated showers. $$ Kasper