Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
127 FZUS52 KKEY 192033 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 433 PM EDT Sun May 19 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. GMZ005-200300- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 433 PM EDT Sun May 19 2024 .SYNOPSIS...The western extent of a low-level ridge axis that extends west-northwest has begun to loosen its grip across the Florida Keys, and breezes have shifted to the south to southwest. Breezes will quickly veer to the north while further decreasing this afternoon as a frontal boundary slides down the Florida peninsula. There may be a break in the rain-free conditions tonight through Tuesday, followed by variable breezes turning to the east Wednesday through Thursday. 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. $$ GMZ031-200300- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 433 PM EDT Sun May 19 2024 .TONIGHT...West to northwest winds 10 to 15 knots, becoming southwest 5 to 10 knots. Bay waters a light to moderate chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .MONDAY...Southwest to west winds 5 to 10 knots, becoming west and increasing to near 10 knots. Bay waters smooth to a light chop, becoming a light chop. Scattered showers and isolated thunderstorms. .MONDAY NIGHT...West to northwest winds 10 to 15 knots, becoming northwest to north and decreasing to 5 to 10 knots after midnight. Bay waters a light to moderate chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .TUESDAY...North to northeast winds near 5 knots, becoming variable in the afternoon. Bay waters smooth. Scattered showers and isolated thunderstorms. .TUESDAY NIGHT...Light and variable winds, becoming northeast to east near 5 knots. Bay waters smooth. Isolated showers and thunderstorms. .WEDNESDAY...Northeast to east winds 5 to 10 knots, becoming east and increasing to near 10 knots. Bay waters smooth to a light chop, becoming a light chop. Scattered showers and isolated thunderstorms. .WEDNESDAY NIGHT...East winds near 10 knots, increasing to 10 to 15 knots. Bay waters a light chop, becoming a light to moderate chop. Isolated showers and thunderstorms. .THURSDAY...Northeast to east winds near 10 knots, becoming east and increasing to 10 to 15 knots. Bay waters a light chop, becoming a light to moderate chop. Isolated showers and thunderstorms. .THURSDAY NIGHT...East winds 10 to 15 knots, decreasing to near 10 knots. Bay waters a light to moderate chop, becoming a light chop. Isolated showers and thunderstorms. .FRIDAY...East winds 5 to 10 knots, becoming east to southeast. Bay waters smooth to a light chop. Isolated showers and thunderstorms. .FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters a light chop. Isolated showers and thunderstorms. $$ GMZ032-035-200300- 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- 433 PM EDT Sun May 19 2024 .TONIGHT...Northwest winds 10 to 15 knots, becoming south to southwest 5 to 10 knots. Seas 1 foot or less. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .MONDAY...Southwest to west winds 5 to 10 knots, becoming west to northwest and 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. Scattered showers and isolated thunderstorms. .MONDAY NIGHT...Northwest winds 10 to 15 knots, becoming northwest to north and decreasing to 5 to 10 knots after midnight. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .TUESDAY...North to northeast winds near 5 knots, becoming west to northwest in the afternoon. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .TUESDAY NIGHT...West to northwest winds near 5 knots, becoming northeast to east and increasing to 5 to 10 knots after midnight. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. Isolated showers and thunderstorms. .WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 foot or less, building to around 1 foot, except building to 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers and thunderstorms. .THURSDAY...East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Isolated showers and thunderstorms. .THURSDAY NIGHT...East winds 10 to 15 knots, becoming east to southeast and decreasing to near 10 knots. Seas around 1 foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore waters a light to moderate chop, becoming a light chop. Isolated showers and thunderstorms. .FRIDAY...East to southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers and thunderstorms. .FRIDAY NIGHT...East to southeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Isolated showers and thunderstorms. $$ GMZ042>044-200300- 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- 433 PM EDT Sun May 19 2024 .TONIGHT...Northwest winds 10 to 15 knots, becoming south to southwest 5 to 10 knots. Seas around 1 foot. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .MONDAY...Southwest to west winds 5 to 10 knots, becoming west to northwest and increasing to near 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. Scattered showers and isolated thunderstorms. .MONDAY NIGHT...Northwest winds 10 to 15 knots, becoming northwest to north and decreasing to 5 to 10 knots after midnight. Seas 1 to 2 feet, subsiding to around 1 foot. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Scattered showers and isolated thunderstorms. .TUESDAY...North to northeast winds near 5 knots, becoming variable. Seas 1 foot or less. Nearshore waters smooth. Scattered showers and isolated thunderstorms. .TUESDAY NIGHT...Variable winds near 5 knots, becoming northeast to east and increasing to 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. Isolated showers and thunderstorms. .WEDNESDAY...Northeast to 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 winds near 10 knots, increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers and thunderstorms. .THURSDAY...East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers and thunderstorms. .THURSDAY NIGHT...East winds 10 to 15 knots, becoming east to southeast. Seas around 2 feet. Nearshore waters a light to moderate chop. Isolated showers and thunderstorms. .FRIDAY AND FRIDAY NIGHT...East to southeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers and thunderstorms. $$ GMZ052>055-072>075-200300- 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- 433 PM EDT Sun May 19 2024 .TONIGHT...Northwest winds near 10 knots, becoming south 5 to 10 knots. Seas around 1 foot. Wave Detail: East 1 foot at 5 seconds and northwest 1 foot at 3 seconds. Scattered showers and thunderstorms. .MONDAY...South to southwest winds 5 to 10 knots, becoming west to northwest in the afternoon. Seas around 1 foot. Wave Detail: Northwest 1 foot at 4 seconds and east to southeast 1 foot at 4 seconds. Scattered showers and isolated thunderstorms. .MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 3 seconds. Scattered showers and isolated thunderstorms. .TUESDAY...Northwest to north winds near 5 knots, becoming variable. Seas around 1 foot. Scattered showers and isolated thunderstorms. .TUESDAY NIGHT...Variable winds near 5 knots, becoming northeast to east. Seas around 1 foot. Scattered showers and isolated thunderstorms. .WEDNESDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...Northeast to east winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 1 to 3 feet. Isolated showers and thunderstorms. .THURSDAY...East winds near 10 knots, becoming northeast to east and increasing to 10 to 15 knots. Seas 1 to 3 feet. Isolated showers and thunderstorms. .THURSDAY NIGHT...Northeast to east winds 10 to 15 knots, becoming east and decreasing to near 10 knots. Seas 2 to 3 feet. Isolated showers and thunderstorms. .FRIDAY...East winds 5 to 10 knots, becoming northeast to east and increasing to near 10 knots. Seas around 2 feet. Isolated showers and thunderstorms. .FRIDAY NIGHT...Northeast to east winds 10 to 15 knots, becoming east to southeast. Seas 2 to 3 feet. Isolated showers and thunderstorms. $$ GMZ033-034-200300- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 433 PM EDT Sun May 19 2024 .TONIGHT...Northwest winds 5 to 10 knots, south to southwest. Seas 1 to 2 feet. Wave Detail: Southwest to west 1 foot at 5 seconds. Scattered showers and isolated thunderstorms. .MONDAY...Southwest to west winds near 5 knots, becoming west to northwest and increasing to near 10 knots in the afternoon. Seas 1 foot or less, building to 1 to 2 feet. Wave Detail: West to northwest 1 foot at 5 seconds. Scattered showers and isolated thunderstorms. .MONDAY NIGHT...Northwest to north winds 10 to 15 knots, becoming north and decreasing to 5 to 10 knots after midnight. Seas 1 to 3 feet, subsiding to 1 to 2 feet. Wave Detail: Northwest 2 feet at 4 seconds. Scattered showers and isolated thunderstorms. .TUESDAY...North winds near 5 knots. Seas around 1 foot. Isolated showers and thunderstorms. .TUESDAY NIGHT...Northwest to north winds 5 to 10 knots, becoming northeast after midnight. Seas around 1 foot. Isolated showers and thunderstorms. .WEDNESDAY...East winds 5 to 10 knots. Seas around 1 foot. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...East winds 5 to 10 knots, becoming east to southeast and increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet. Isolated showers and thunderstorms. .THURSDAY...East winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. .THURSDAY NIGHT...East winds 5 to 10 knots, becoming east to southeast and increasing to 10 to 15 knots after midnight. Seas 1 to 2 feet. Isolated showers and thunderstorms. .FRIDAY...East to southeast winds near 10 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. .FRIDAY NIGHT...Southeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Isolated showers and thunderstorms. $$ MJV/LIW