Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
435 FZUS52 KKEY 181419 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 1019 AM EDT Tue Jun 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. GMZ005-182030- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 1019 AM EDT Tue Jun 18 2024 .SYNOPSIS...Strong surface high pressure centered off the New England coast working in tandem with falling pressures over the Yucatan Peninsula and the Bay of Campeche is expected to result in moderate to fresh breezes today through mid week. An area of low pressure may develop mid week a few hundred miles north of the central Bahamas towards mid week and move towards the north to central Florida coastline. This may result in a slackening of breezes. The Approximate Shoreward Edge of the Gulf Stream as of June 12... 66 NM South of Dry Tortugas Light...on Loggerhead Key. 24 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 17 NM South of Sand Key Light...off Key West. 28 NM South of Looe Key...off Big Pine Key. 8 NM South of Sombrero Key Light...off Marathon. 4 NM South of Alligator Reef Light...off Islamorada. 2 NM South of Molasses Reef Light...off Key Largo. Gulf Stream Information Courtesy of the National Weather Service in Key West. $$ GMZ031-182030- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1019 AM EDT Tue Jun 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .THIS AFTERNOON...East winds near 20 knots. Bay waters rough. Isolated showers and thunderstorms. .TONIGHT AND WEDNESDAY...East winds 15 to 20 knots. Bay waters choppy. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East winds 15 to 20 knots, decreasing to near 15 knots. Bay waters choppy, becoming a moderate chop. Scattered showers and isolated thunderstorms. .THURSDAY...East winds increasing to 15 to 20 knots. Bay waters becoming choppy. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT...East winds 15 to 20 knots, decreasing to near 15 knots. Bay waters choppy, becoming a moderate chop. Scattered showers and isolated thunderstorms. .FRIDAY...East winds near 15 knots. Bay waters a moderate chop. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...East to southeast winds near 15 knots. Bay waters a moderate chop. Scattered showers and isolated thunderstorms. .SATURDAY...East to southeast winds near 15 knots. Bay waters a moderate chop. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Bay waters a light to moderate chop. Scattered showers and isolated thunderstorms. $$ GMZ032-035-182030- 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- 1019 AM EDT Tue Jun 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .THIS AFTERNOON...East winds near 20 knots. Seas 2 to 3 feet, except 4 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters rough. Scattered showers and isolated thunderstorms. .TONIGHT AND WEDNESDAY...East winds near 20 knots. Seas 2 to 3 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 3 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters rough, becoming choppy. Scattered showers and isolated thunderstorms. .THURSDAY...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. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT...East winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy, becoming a moderate chop. Scattered showers and isolated thunderstorms. .FRIDAY...East winds increasing to 15 to 20 knots. Seas 1 to 2 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters becoming choppy. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 1 to 2 feet, except 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. Scattered showers and isolated thunderstorms. .SATURDAY AND SATURDAY NIGHT...East to southeast winds near 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a moderate chop. Scattered showers and isolated thunderstorms. $$ GMZ042>044-182030- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1019 AM EDT Tue Jun 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .THIS AFTERNOON...East winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough. Scattered showers and isolated thunderstorms. .TONIGHT AND WEDNESDAY...East winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Nearshore waters rough, becoming choppy. Scattered showers and isolated thunderstorms. .THURSDAY...East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT...East winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming a moderate chop. Scattered showers and isolated thunderstorms. .FRIDAY...East winds increasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters becoming choppy. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. Scattered showers and isolated thunderstorms. .SATURDAY AND SATURDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. Scattered showers and isolated thunderstorms. $$ GMZ052>055-072>075-182030- 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 AM EDT Tue Jun 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .THIS AFTERNOON...East winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers and isolated thunderstorms. .TONIGHT...East winds near 20 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers and isolated thunderstorms. .WEDNESDAY...East winds 15 to 20 knots, increasing to near 20 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 6 seconds. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East winds near 20 knots, decreasing to 15 to 20 knots. Seas 4 to 7 feet, occasionally to 8 feet. Scattered showers and isolated thunderstorms. .THURSDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT AND FRIDAY...East winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. .SATURDAY AND SATURDAY NIGHT...East to southeast winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. $$ GMZ033-034-182030- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 1019 AM EDT Tue Jun 18 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .THIS AFTERNOON...East winds 20 to 25 knots. Seas 4 to 7 feet, occasionally to 8 feet. Wave Detail: East 5 feet at 5 seconds. Scattered showers and isolated thunderstorms. .TONIGHT...East winds near 20 knots. Seas 4 to 7 feet, occasionally to 8 feet. Wave Detail: East 4 feet at 5 seconds. Scattered showers and isolated thunderstorms. .WEDNESDAY...East winds near 20 knots. Seas 4 to 6 feet, occasionally to 7 feet. Wave Detail: East 4 feet at 5 seconds. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East winds near 20 knots., decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Scattered showers and isolated thunderstorms. .THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT AND FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. .SATURDAY AND SATURDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to 3 feet. Scattered showers and isolated thunderstorms. $$