Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
689 FZUS52 KKEY 050330 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 1030 PM EST Wed Dec 4 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. GMZ005-050930- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 1030 PM EST Wed Dec 4 2024 .SYNOPSIS...As surface high pressure continues to slide eastward off the Southeast, northeast to east breezes will slacken through Friday. Breezes will freshen once again Friday night through Saturday night, with a weak frontal passage and a secondary high building in its wake. As this high slides offshore early next week, moderate to fresh breezes will clock around to the east to southeast. The Approximate Shoreward Edge of the Gulf Stream as of November 27... 32 NM South of Dry Tortugas Light...on Loggerhead Key. 21 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 13 NM South of Sand Key Light...off Key West. 9 NM South of Looe Key...off Big Pine Key. 11 NM South of Sombrero Key Light...off Marathon. 16 NM Southeast of Alligator Reef Light...off Islamorada. 13 NM Southeast of Molasses Reef Light...off Key Largo. 10 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. $$ GMZ031-050930- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1030 PM EST Wed Dec 4 2024 .OVERNIGHT...North to northeast winds near 10 knots. Bay waters a light chop. .THURSDAY...Northeast winds near 10 knots, decreasing to 5 to 10 knots. Bay waters a light chop, becoming smooth to a light chop. .THURSDAY NIGHT...North to northeast winds 5 to 10 knots, increasing to near 10 knots. Bay waters smooth to a light chop, becoming a light chop. .FRIDAY...North to northeast winds 5 to 10 knots. Bay waters smooth to a light chop. .FRIDAY NIGHT...North to northeast winds near 10 knots, increasing to 10 to 15 knots. Bay waters a light chop, becoming a light to moderate chop. .SATURDAY...Northeast to east winds near 15 knots. Bay waters a moderate chop. .SATURDAY NIGHT...Northeast to east winds 15 to 20 knots, decreasing to near 15 knots. Bay waters choppy, becoming a moderate chop. .SUNDAY...Northeast to east winds near 15 knots. Bay waters a moderate chop. .SUNDAY NIGHT...East winds near 15 knots. Bay waters a moderate chop. .MONDAY...East to southeast winds near 15 knots, decreasing to 10 to 15 knots. Bay waters a moderate chop, becoming a light to moderate chop. .MONDAY NIGHT...East to southeast winds 10 to 15 knots. Bay waters a light to moderate chop. $$ GMZ032-035-050930- 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- 1030 PM EST Wed Dec 4 2024 .OVERNIGHT...Northeast to east winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop, becoming a light chop. .THURSDAY...Northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming smooth to a light chop. .THURSDAY NIGHT...North to northeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. .FRIDAY...North to northeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. .FRIDAY NIGHT...North to northeast winds near 10 knots, increasing to near 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming a moderate chop. .SATURDAY...Northeast winds near 15 knots. Seas building to 2 to 3 feet, except building to 3 to 4 feet west of the Marquesas Keys. Nearshore waters a moderate chop. .SATURDAY NIGHT...Northeast to 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. .SUNDAY...Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters choppy. .SUNDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 4 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters choppy. .MONDAY...East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas subsiding to 2 to 3 feet, except subsiding to 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy, becoming a moderate chop. .MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop. $$ GMZ042>044-050930- 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- 1030 PM EST Wed Dec 4 2024 .OVERNIGHT...Northeast to east winds near 15 knots, decreasing to near 10 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Nearshore waters a moderate chop, becoming a light chop. .THURSDAY...Northeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. Nearshore waters a light chop, becoming smooth to a light chop. .THURSDAY NIGHT...Northeast winds 5 to 10 knots, becoming north to northeast and increasing to near 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light chop. .FRIDAY...North to northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .FRIDAY NIGHT...North to northeast winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop, becoming a moderate chop. .SATURDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. .SATURDAY NIGHT...Northeast to east winds 15 to 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 choppy. .SUNDAY...Northeast to east winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 5 feet, occasionally to 6 feet west of Cosgrove Shoal Light. Nearshore waters choppy. .SUNDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Nearshore waters choppy. .MONDAY...East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 3 to 4 feet, occasionally to 5 feet. Nearshore waters choppy, becoming a moderate chop. .MONDAY NIGHT...East to southeast winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters a moderate chop. $$ GMZ052>055-072>075-050930- 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- 1030 PM EST Wed Dec 4 2024 .OVERNIGHT...Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 4 to 6 feet, occasionally to 7 feet, subsiding to 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northeast to east 5 feet at 6 seconds. .THURSDAY...Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 3 feet at 6 seconds and northwest 1 foot at 5 seconds. .THURSDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: Northeast to east 2 feet at 5 seconds. .FRIDAY...North to northeast winds 10 to 15 knots. Seas 2 to 3 feet. .FRIDAY NIGHT...North to northeast winds 10 to 15 knots, increasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 3 to 5 feet, occasionally to 6 feet. .SATURDAY...Northeast winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. .SATURDAY NIGHT...Northeast to east winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Isolated showers. .SUNDAY...Northeast to east winds near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. .SUNDAY NIGHT...East winds near 20 knots. Seas 6 to 8 feet, occasionally to 10 feet, subsiding to 5 to 7 feet, occasionally to 9 feet. .MONDAY...East to southeast winds near 20 knots, decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. .MONDAY NIGHT...East to southeast winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. $$ GMZ033-034-050930- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 1030 PM EST Wed Dec 4 2024 .OVERNIGHT...Northeast to east winds 10 to 15 knots, decreasing to near 10 knots. Seas subsiding to 2 to 3 feet. Wave Detail: North to northeast 2 feet at 5 seconds. .THURSDAY...Northeast near 10 knots, decreasing to winds 5 to 10 knots. Seas subsiding to 1 to 2 feet. Wave Detail: North 2 feet at 4 seconds. .THURSDAY NIGHT...North to northeast winds 5 to 10 knots, increasing to near 10 knots. Seas 1 to 2 feet. Wave Detail: North 1 foot at 4 seconds. .FRIDAY...Northeast winds near 10 knots, becoming north to northeast winds 10 to 15 knots. Seas 1 to 2 feet. .FRIDAY NIGHT...North to northeast winds 10 to 15 knots, becoming northeast and increasing to 15 to 20 knots. Seas 1 to 2 feet, building to 2 to 3 feet. .SATURDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. .SATURDAY NIGHT...Northeast to east winds 15 to 20 knots, increasing to near 20 knots. Seas building to 3 to 5 feet, occasionally to 6 feet. .SUNDAY...Northeast to east winds near 20 knots, becoming east and decreasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. .SUNDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. .MONDAY...East to southeast winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. .MONDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 to 3 feet. $$