Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
967 FZUS52 KKEY 210827 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 427 AM EDT Tue May 21 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. GMZ005-211430- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 427 AM EDT Tue May 21 2024 .SYNOPSIS...Today through Wednesday, breezes will gradually shift to the east as high pressure in the western North Atlantic builds back in across the region. Gentle east to southeast breezes will resume Friday through Saturday. The Approximate Shoreward Edge of the Gulf Stream as of May 15, 2024... 49 NM South of Dry Tortugas Light...on Loggerhead Key. 32 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 24 NM South of Sand Key Light...off Key West. 27 NM South of Looe Key...off Big Pine Key. 29 NM South of Sombrero Key Light...off Marathon. 8 NM Southeast of Alligator Reef Light...off Islamorada. 3 NM Southeast of Molasses Reef Light...off Key Largo. Gulf Stream Information Courtesy of the National Weather Service in Key West. $$ GMZ031-211430- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 427 AM EDT Tue May 21 2024 .TODAY...North winds 5 to 10 knots, becoming southeast near 5 knots. Bay waters smooth to a light chop, becoming smooth. Scattered showers and isolated thunderstorms. .TONIGHT...Northeast to east winds near 5 knots. Bay waters smooth. Scattered showers and isolated thunderstorms. .WEDNESDAY...East winds near 5 knots, increasing to near 10 knots. Bay waters smooth, becoming a light chop. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East winds near 10 knots, decreasing to 5 to 10 knots. Bay waters a light chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .THURSDAY...East winds 5 to 10 knots. Bay waters smooth to a light chop. Isolated showers and thunderstorms. .THURSDAY NIGHT...East winds near 10 knots, decreasing to 5 to 10 knots. Bay waters a light chop, becoming smooth to a light chop. Isolated showers and thunderstorms. .FRIDAY AND FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Bay waters smooth to a light chop. Isolated showers and thunderstorms. .SATURDAY AND SATURDAY NIGHT...Southeast winds 5 to 10 knots. Bay waters smooth to a light chop. Isolated showers and thunderstorms. $$ GMZ032-035-211430- 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- 427 AM EDT Tue May 21 2024 .TODAY...North to northeast winds 5 to 10 knots, becoming variable near 5 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. Isolated showers and thunderstorms. .TONIGHT...Light and variable winds, becoming east near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .WEDNESDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East to southeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. .THURSDAY...East winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms. .THURSDAY NIGHT...East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop. Isolated showers and thunderstorms. .FRIDAY THROUGH SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms. $$ GMZ042>044-211430- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 427 AM EDT Tue May 21 2024 .TODAY...North to northeast winds 5 to 10 knots, becoming variable near 5 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. Isolated showers and thunderstorms. .TONIGHT...Light and variable winds, becoming east near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .WEDNESDAY...East winds 5 to 10 knots, increasing to near 10 knots. Seas 1 foot or less, building to around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .THURSDAY...East winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms. .THURSDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers and thunderstorms. .FRIDAY...East winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms. $$ GMZ052>055-072>075-211430- 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 AM EDT Tue May 21 2024 .TODAY...North to northeast winds 5 to 10 knots, becoming light and variable. Seas 1 to 2 feet, subsiding to around 1 foot. Wave Detail: Northwest to north 1 foot at 2 seconds. Scattered showers and isolated thunderstorms. .TONIGHT...Light and variable winds, becoming east 5 to 10 knots. Seas around 1 foot, building to 1 to 2 feet. Scattered showers and isolated thunderstorms. .WEDNESDAY...East winds 5 to 10 knots, increasing to near 10 knots. Seas 1 to 2 feet. Wave Detail: Northeast to east 2 feet at 3 seconds. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas around 2 feet. Scattered showers and isolated thunderstorms. .THURSDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. .THURSDAY NIGHT...East winds near 10 knots. Seas around 2 feet. Isolated showers and thunderstorms. .FRIDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. .FRIDAY NIGHT...East to southeast winds near 10 knots. Seas around 2 feet. Isolated showers and thunderstorms. .SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. .SATURDAY NIGHT...East to southeast winds increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 1 to 3 feet. Isolated showers and thunderstorms. $$ GMZ033-034-211430- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 427 AM EDT Tue May 21 2024 .TODAY...North to northeast winds 5 to 10 knots, becoming light and variable. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. Isolated showers and thunderstorms. .TONIGHT...North to northeast winds near 5 knots, becoming east. Seas around 1 foot. Wave Detail: West to northwest 1 foot at 5 seconds and northwest to north 1 foot at 4 seconds. Isolated showers and thunderstorms. .WEDNESDAY...East to southeast winds 5 to 10 knots. Seas around 1 foot. Wave Detail: North 1 foot at 3 seconds. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...East to southeast winds 5 to 10 knots, increasing to near 10 knots. Seas 1 to 2 feet. Scattered showers and isolated thunderstorms. .THURSDAY...East to southeast winds 5 to 10 knots. Seas around 1 foot. Isolated showers and thunderstorms. .THURSDAY NIGHT...East to southeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Isolated showers and thunderstorms. .FRIDAY...East to southeast winds 5 to 10 knots, becoming around 5 knots in the afternoon. Seas around 1 foot. Isolated showers and thunderstorms. .FRIDAY NIGHT AND SATURDAY...Southeast winds 5 to 10 knots. Seas around 1 foot. Isolated showers and thunderstorms. .SATURDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. $$ NB