Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
658 FZUS52 KKEY 181432 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 1032 AM EDT Wed Sep 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. GMZ005-182045- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 1032 AM EDT Wed Sep 18 2024 .SYNOPSIS...Light and generally variable breezes will continue through the remainder of the week. Expect higher winds and seas in and around thunderstorms. Northerly swell generated by a low near the Eastern Seaboard will linger through Wednesday. This disturbance will meander southeast to southward this weekend and into early next week and deepen as it interacts with an upper level trough. Unpredictability in the movement of this trough means confidence in the extended forecast is very low. The Approximate Shoreward Edge of the Gulf Stream as of September 10... 47 NM South of Dry Tortugas Light...on Loggerhead Key. 27 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 22 NM South of Sand Key Light...off Key West. 19 NM South of Looe Key...off Big Pine Key. 18 NM South of Sombrero Key Light...off Marathon. 10 NM Southeast of Alligator Reef Light...off Islamorada. 6 NM Southeast of Molasses Reef Light...off Key Largo. 4 NM East of Carysfort Reef Light...off Ocean Reef. Gulf Stream Information Courtesy of the Naval Oceanographic Office. $$ GMZ031-182045- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1032 AM EDT Wed Sep 18 2024 .THIS AFTERNOON...southeast winds 5 to 10 knots, decreasing to near 5 knots. Bay waters smooth to a light chop, becoming smooth. Winds higher and bay waters rough in and near numerous showers and scattered thunderstorms. .TONIGHT...East to southeast winds near 5 knots. Bay waters smooth. Scattered showers and isolated thunderstorms. .THURSDAY...Southeast winds near 5 knots. Bay waters smooth. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT...East to southeast winds near 5 knots. Bay waters smooth. Scattered showers and isolated thunderstorms. .FRIDAY...Variable winds near 5 knots. Bay waters smooth. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...East to southeast winds near 5 knots. Bay waters smooth. Scattered showers and isolated thunderstorms. .SATURDAY...Northeast to east winds near 5 knots. Bay waters smooth. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Bay waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SUNDAY...Northeast to east winds 5 to 10 knots. Bay waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...Northeast to east winds near 10 knots. Bay waters a light chop. Scattered showers and isolated thunderstorms. $$ GMZ032-035-182045- 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- 1032 AM EDT Wed Sep 18 2024 .THIS AFTERNOON...Variable winds 5 to 10 knots, decreasing to near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Numerous showers and scattered thunderstorms. .TONIGHT...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. .THURSDAY AND THURSDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .FRIDAY...Northwest to north winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .SATURDAY...Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT AND SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. $$ GMZ042>044-182045- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1032 AM EDT Wed Sep 18 2024 .THIS AFTERNOON...East to southeast winds 5 to 10 knots, decreasing to near 5 knots. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming smooth. Numerous showers and scattered thunderstorms. .TONIGHT...East to southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms. .THURSDAY AND THURSDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .FRIDAY...Northwest winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .SATURDAY...Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SUNDAY...Northeast to east winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...East winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. $$ GMZ052>055-072>075-182045- 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- 1032 AM EDT Wed Sep 18 2024 .THIS AFTERNOON...East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. Numerous showers and scattered thunderstorms. .TONIGHT...East winds 5 to 10 knots. Seas around 1 foot. Wave Detail: East 1 foot at 4 seconds. Scattered showers and isolated thunderstorms. .THURSDAY...Variable winds near 5 knots. Seas around 1 foot. Wave Detail: East 1 foot at 3 seconds. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT...Variable winds near 5 knots. Seas around 1 foot. Scattered showers and isolated thunderstorms. .FRIDAY...Variable winds near 5 knots, becoming northwest to north. Seas around 1 foot. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...Variable winds near 5 knots. Seas around 1 foot. Scattered showers and isolated thunderstorms. .SATURDAY...Northeast to east winds near 5 knots. Seas around 1 foot. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot. Scattered showers and isolated thunderstorms. .SUNDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...East winds near 10 knots. Seas building to 2 to 3 feet. Scattered showers and isolated thunderstorms. $$ GMZ033-034-182045- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 1032 AM EDT Wed Sep 18 2024 .THIS AFTERNOON...East to southeast winds 5 to 10 knots, becoming variable near 5 knots. Seas 1 foot or less. Numerous showers and scattered thunderstorms. .TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and isolated thunderstorms. .THURSDAY...Variable winds near 5 knots. Seas 1 foot or less. Scattered showers and isolated thunderstorms. .THURSDAY NIGHT...Variable winds near 5 knots. Seas 1 foot or less. Scattered showers and isolated thunderstorms. .FRIDAY...North winds near 5 knots. Seas 1 foot or less. Scattered showers and isolated thunderstorms. .FRIDAY NIGHT...Northeast to east winds near 5 knots. Seas 1 foot or less. Scattered showers and isolated thunderstorms. .SATURDAY...Northeast to east winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas around 1 foot. Scattered showers and isolated thunderstorms. .SUNDAY...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 3 feet. Scattered showers and isolated thunderstorms. $$