Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
041 FZUS52 KKEY 140233 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 1033 PM EDT Thu Jun 13 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. GMZ005-140845- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 1033 PM EDT Thu Jun 13 2024 .SYNOPSIS...Mainly moderate breezes and another day of unsettled weather featuring thundery squalls and episodes of heavy rainfall will persist tonight through Friday night. Rain and thunder chances will decrease gradually starting Saturday. Breezes will freshen by Sunday night, with moderate to fresh easterly breezes expected for late in the weekend into early next week. The Approximate Shoreward Edge of the Gulf Stream as of June 12... 66 NM South of Dry Tortugas Light...on Loggerhead Key. 24 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 17 NM South of Sand Key Light...off Key West. 28 NM South of Looe Key...off Big Pine Key. 8 NM South of Sombrero Key Light...off Marathon. 4 NM South of Alligator Reef Light...off Islamorada. 2 NM South of Molasses Reef Light...off Key Largo. Gulf Stream Information Courtesy of the National Weather Service in Key West. $$ GMZ031-140845- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1033 PM EDT Thu Jun 13 2024 .OVERNIGHT...South to southwest winds 10 to 15 knots, increasing to near 15 knots. Bay waters a light to moderate chop, becoming a moderate chop. Widespread showers and scattered thunderstorms early, then scattered showers and isolated thunderstorms. .FRIDAY...South to southwest winds near 15 knots, becoming southwest and decreasing to 5 to 10 knots. Bay waters a moderate chop, becoming smooth to a light chop. Numerous showers and scattered thunderstorms developing. .FRIDAY NIGHT...South to southwest winds 5 to 10 knots. Bay waters smooth to a light chop. Scattered showers and thunderstorms. .SATURDAY...Southeast to south winds 5 to 10 knots, becoming northeast to east. Bay waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...Northeast to east winds 5 to 10 knots. Bay waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SUNDAY...Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Bay waters smooth to a light chop, becoming a light chop. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...Northeast to east winds 10 to 15 knots, increasing to near 15 knots. Bay waters a light to moderate chop, becoming a moderate chop. Isolated showers and thunderstorms. .MONDAY...East winds near 15 knots, increasing to 15 to 20 knots. Bay waters a moderate chop, becoming choppy. Scattered showers and isolated thunderstorms. .MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots. Bay waters choppy. Scattered showers and isolated thunderstorms. $$ GMZ032-035-140845- 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- 1033 PM EDT Thu Jun 13 2024 .OVERNIGHT...South to southwest winds 10 to 15 knots, increasing to near 15 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 moderate chop. Widespread showers and scattered thunderstorms early, then scattered showers and isolated thunderstorms. .FRIDAY...South to southwest winds near 15 knots, becoming southwest and decreasing to near 10 knots. Seas subsiding to around 1 foot. Nearshore waters a moderate chop, becoming a light chop. Numerous showers and scattered thunderstorms developing. .FRIDAY NIGHT...South to southwest winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. Scattered showers and thunderstorms. .SATURDAY...South to southwest winds 5 to 10 knots, becoming east to southeast. Seas 1 foot or less. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...East 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. Scattered showers and isolated thunderstorms. .SUNDAY...East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...Northeast to east winds 10 to 15 knots, increasing to near 15 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 moderate chop. Isolated showers and thunderstorms. .MONDAY...East winds 15 to 20 knots. Seas building to 2 to 3 feet, except building to 3 to 4 feet, occasionally to 5 feet west of the Marquesas Keys. Nearshore waters choppy. Scattered showers and isolated thunderstorms. .MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters choppy. Scattered showers and isolated thunderstorms. $$ GMZ042>044-140845- 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- 1033 PM EDT Thu Jun 13 2024 ...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS... .OVERNIGHT...South to southwest winds near 15 knots, increasing to 15 to 20 knots late. Seas 2 to 3 feet. Nearshore waters choppy. Widespread showers and scattered thunderstorms early, then scattered showers and isolated thunderstorms. .FRIDAY...South to southwest winds 15 to 20 knots, becoming southwest and decreasing to near 10 knots. Seas subsiding to around 2 feet. Nearshore waters choppy, becoming a light chop. Numerous showers and scattered thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas subsiding to around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and thunderstorms. .SATURDAY...Southeast to south winds 5 to 10 knots, becoming northeast to east. Seas around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming east and increasing to near 10 knots. Seas building to 1 to 2 feet. Nearshore waters smooth to a light chop, becoming a light chop. Scattered showers and isolated thunderstorms. .SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots. Seas building to around 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...East winds 10 to 15 knots, increasing to near 15 knots. Seas building to 2 to 3 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Scattered showers and isolated thunderstorms. .MONDAY...East winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy. Scattered showers and isolated thunderstorms. .MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Nearshore waters choppy. Scattered showers and isolated thunderstorms. $$ GMZ052>055-072>075-140845- 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- 1033 PM EDT Thu Jun 13 2024 ...SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS... .OVERNIGHT...South to southwest winds near 15 knots, increasing to 15 to 20 knots. Seas 4 to 5 feet, occasionally to 6 feet. Wave Detail: Southwest 3 feet at 5 seconds and southeast 1 to 2 feet at 4 seconds. Widespread showers and scattered thunderstorms early, then scattered showers and isolated thunderstorms. .FRIDAY...South to southwest winds 15 to 20 knots, decreasing to near 10 knots. Seas 4 to 5 feet occasionally to 6 feet, subsiding to around 2 feet. Wave Detail: Southeast to south 3 feet at 3 seconds and northwest to north 1 feet at 3 seconds. Numerous showers and scattered thunderstorms. .FRIDAY NIGHT...South winds 5 to 10 knots. Seas 1 to 2 feet. Wave Detail: Northwest 1 foot at 4 seconds and southeast 1 foot at 3 seconds. Scattered showers and thunderstorms. .SATURDAY...Southeast winds 5 to 10 knots, becoming northeast to east. Seas 1 to 2 feet. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming east and increasing to near 10 knots. Seas building to 2 to 3 feet. Scattered showers and isolated thunderstorms. .SUNDAY...Northeast to east winds 10 to 15 knots. Seas building to 2 to 4 feet. Scattered showers and isolated thunderstorms. .SUNDAY NIGHT...Northeast to east winds 10 to 15 knots, increasing to near 15 knots. Seas building to 3 to 5 feet. Scattered showers and isolated thunderstorms. .MONDAY...East winds near 15 knots, increasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Scattered showers and isolated thunderstorms. .MONDAY NIGHT THROUGH TUESDAY NIGHT...East winds 15 to 20 knots. Seas 4 to 6 feet, occasionally to 7 feet. Scattered showers and isolated thunderstorms. $$ GMZ033-034-140845- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 1033 PM EDT Thu Jun 13 2024 .OVERNIGHT...South to southwest winds 10 to 15 knots, increasing to near 15 knots. Seas 2 to 3 feet. Wave Detail: Southwest 2 feet at 5 seconds. Scattered showers and isolated thunderstorms. .FRIDAY...South to southwest winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: South to southwest 3 feet at 5 seconds. Widespread showers and scattered thunderstorms. .FRIDAY NIGHT...South to southwest winds near 10 knots. Seas subsiding to 1 to 2 feet. Wave Detail: South to southwest 2 feet at 4 seconds. Numerous showers and scattered thunderstorms. .SATURDAY...South winds 5 to 10 knots, becoming east to southeast. Seas around 1 foot. Scattered showers and isolated thunderstorms. .SATURDAY NIGHT...East to southeast winds 5 to 10 knots, becoming east and increasing to near 10 knots. Seas building to 1 to 2 feet. Scattered showers and isolated thunderstorms. .SUNDAY...East winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 3 feet. Isolated showers and thunderstorms. .SUNDAY NIGHT...East winds 10 to 15 knots, increasing to near 15 knots. Seas building to 2 to 3 feet. Isolated showers and thunderstorms. .MONDAY...East winds 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Scattered showers and isolated thunderstorms. .MONDAY NIGHT...East winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Isolated showers and thunderstorms. .TUESDAY AND TUESDAY NIGHT...East winds near 20 knots. Seas 4 to 6 feet, occasionally to 7 feet. Scattered showers and isolated thunderstorms. $$ CLR