FZUS52 KKEY 142027 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 427 PM EDT Tue Apr 14 2026 Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef to south of Dry Tortugas, and the extreme southeastern Gulf of America, 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. GMZ005-150830- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 427 PM EDT Tue Apr 14 2026 .SYNOPSIS...A high pressure system over the central North Atlantic will maintain moderate to fresh northeast to east breezes tonight through Wednesday night. Occasional fast- moving light showers cannot be ruled out, especially in the overnight periods. Breezes likely will lull from late morning into the late afternoon across the Gulf waters due to the heating of South Florida. As the high moves farther eastward and slowly weakens, easterly breezes will slacken Thursday through Sunday. The Approximate Shoreward Edge of the Gulf Stream as of April 10... 16 NM South of Dry Tortugas Light...on Loggerhead Key. 21 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 23 NM South of Sand Key Light...off Key West. 37 NM South of Looe Key...off Big Pine Key. 29 NM Southeast of Sombrero Key Light...off Marathon. 18 NM Southeast of Alligator Reef Light...off Islamorada. 13 NM Southeast of Molasses Reef Light...off Key Largo. 9 NM Southeast of Carysfort Reef Light...off Ocean Reef. Gulf Stream Information Courtesy of the National Weather Service in Key West based on products from NASA SPoRT and RTOFS. $$ GMZ031-150830- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 427 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northeast to east winds near 15 knots, increasing to near 20 knots. Bay waters a moderate chop, becoming rough. A slight chance of showers. .WEDNESDAY...Northeast to east winds 15 to 20 knots, decreasing to 10 to 15 knots. Bay waters choppy, becoming a light to moderate chop. A slight chance of showers. .WEDNESDAY NIGHT...Northeast to east winds near 15 knots. Bay waters a moderate chop. .THURSDAY...East winds 10 to 15 knots. Bay waters a light to moderate chop. .THURSDAY NIGHT...Northeast to east winds near 15 knots. Bay waters a moderate chop. A slight chance of showers. .FRIDAY...Northeast to east winds 10 to 15 knots. Bay waters a light to moderate chop. A slight chance of showers. .FRIDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to moderate chop. .SATURDAY...East winds near 10 knots. Bay waters a light chop. .SATURDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to moderate chop. .SUNDAY AND SUNDAY NIGHT...East winds near 10 knots. Bay waters a light chop. $$ GMZ032-035-150830- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 427 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...East winds near 15 knots, increasing to near 20 knots. Seas around 2 feet, building to 2 to 3 feet, except building to 2 to 4 feet west of the Marquesas Keys. Nearshore waters a moderate chop, becoming rough. A slight chance of showers. .WEDNESDAY...East winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet, except around 3 feet west of the Marquesas Keys. Seas subsiding to around 2 feet. Nearshore waters choppy, becoming a light to moderate chop. A slight chance of showers. .WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas around 2 feet, except around 3 feet west of the Marquesas Keys. Nearshore waters choppy. A slight chance of showers. .THURSDAY...East winds near 15 knots, decreasing to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. .THURSDAY NIGHT...Northeast to east winds near 15 knots. Seas around 2 feet. Nearshore waters a moderate chop. A slight chance of showers. .FRIDAY...Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers. .FRIDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. .SATURDAY...East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. .SUNDAY AND SUNDAY NIGHT...East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. $$ GMZ042>044-150830- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 427 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...East winds 15 to 20 knots, increasing to near 20 knots. Seas 2 to 3 feet, building to 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming rough. A slight chance of showers. .WEDNESDAY...East winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 3 feet. Nearshore waters choppy, becoming a moderate chop. A slight chance of showers. .WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 2 to 3 feet. Nearshore waters choppy. A slight chance of showers. .THURSDAY...Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas around 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. A slight chance of showers. .THURSDAY NIGHT...Northeast to east winds near 15 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop. A slight chance of showers. .FRIDAY...Northeast to east winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers. .FRIDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. .SATURDAY...East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop. .SUNDAY AND SUNDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. $$ GMZ052>055-072>075-150830- 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- 427 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northeast to east winds 15 to 20 knots, increasing to 20 to 25 knots. Seas 4 to 6 feet, occasionally to 7 feet, building to 5 to 7 feet, occasionally to 8 feet. Wave Detail: Northeast to east 6 feet at 6 seconds. A slight chance of showers. .WEDNESDAY...Northeast to east winds near 20 knots, decreasing to 15 to 20 knots. Seas 5 to 7 feet, occasionally to 8 feet, subsiding to 4 to 6 feet, occasionally to 7 feet. Wave Detail: East 5 feet at 6 seconds. A slight chance of showers. .WEDNESDAY NIGHT...Northeast to east winds 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast to east 5 feet at 6 seconds. A slight chance of showers. .THURSDAY AND THURSDAY NIGHT...Northeast to east winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. A slight chance of showers. .FRIDAY...Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. A slight chance of showers. .FRIDAY NIGHT...East winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SATURDAY AND SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. .SUNDAY AND SUNDAY NIGHT...East winds near 10 knots. Seas 2 to 3 feet. $$ GMZ033-034-150830- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 427 PM EDT Tue Apr 14 2026 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...East winds 15 to 20 knots, increasing to near 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 4 to 5 feet, occasionally to 6 feet. Wave Detail: East 4 feet at 5 seconds. A slight chance of showers. .WEDNESDAY...East winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 3 feet. Wave Detail: East 3 feet at 5 seconds. A slight chance of showers. .WEDNESDAY NIGHT...East winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: East 3 feet at 4 seconds. A slight chance of showers. .THURSDAY...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. .THURSDAY NIGHT...Northeast to east winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. .FRIDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. A slight chance of showers. .FRIDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. .SATURDAY...East winds near 10 knots. Seas 1 to 2 feet. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. .SUNDAY AND SUNDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet. $$ CLR