Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
537 FZUS52 KKEY 020231 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 1031 PM EDT Mon Jun 1 2026 Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef to south of Dry Tortugas, and the extreme southeastern Gulf of America, 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. GMZ005-021445- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 1031 PM EDT Mon Jun 1 2026 .SYNOPSIS...Weak high pressure across the area will support light to gentle breezes going back and forth between southwest to northwest over the next couple of days. Near normal rain and thunder chances also expected. A weak frontal boundary may stall near the Keys coastal waters by mid week, supporting an uptick in breezes as well as rain chances. The Approximate Shoreward Edge of the Gulf Stream as of May 30... 35 NM South of Dry Tortugas Light...on Loggerhead Key. 11 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 10 NM South of Sand Key Light...off Key West. 7 NM South of Looe Key...off Big Pine Key. 7 NM Southeast of Sombrero Key Light...off Marathon. 6 NM Southeast of Alligator Reef Light...off Islamorada. 2 NM Southeast of Molasses Reef Light...off Key Largo. 1 NM Southeast of Carysfort Reef Light...off Ocean Reef. Gulf Stream Information Courtesy of the National Weather Service in Key West based on products from NASA SPoRT and RTOFS. $$ GMZ031-021445- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1031 PM EDT Mon Jun 1 2026 .OVERNIGHT...Variable winds 5 to 10 knots. Bay waters smooth to a light chop. A slight chance of showers and thunderstorms. .TUESDAY...West to northwest winds near 5 knots, becoming southwest to west. Bay waters smooth. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...West winds near 5 knots, becoming light and variable. Bay waters smooth. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...Northwest to north winds near 5 knots, becoming north to northeast. Bay waters smooth. Showers likely with a chance of thunderstorms. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Bay waters smooth to a light chop. Showers likely with a chance of thunderstorms. .THURSDAY...Northeast to east winds near 5 knots, increasing to 5 to 10 knots. Bay waters smooth, becoming smooth to a light chop. Showers likely with a chance of thunderstorms. .THURSDAY NIGHT...Northeast to east winds increasing to 10 to 15 knots. Bay waters becoming a light to moderate chop. A chance of showers and thunderstorms. .FRIDAY...Northeast to east winds 10 to 15 knots. Bay waters a light to moderate chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...Northeast to east winds 10 to 15 knots. Bay waters a light to moderate chop. A slight chance of showers. .SATURDAY...Northeast to east winds 10 to 15 knots. Bay waters a light to moderate chop. A chance of showers with a slight chance of thunderstorms. .SATURDAY NIGHT...East winds 10 to 15 knots. Bay waters a light to moderate chop. A slight chance of showers and thunderstorms. $$ GMZ032-035-021445- Bayside and Gulfside from Craig Key to west end of Seven Mile Bridge- Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 1031 PM EDT Mon Jun 1 2026 .OVERNIGHT...Variable winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A slight chance of showers and thunderstorms. .TUESDAY...Variable winds near 5 knots, becoming north to northeast. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...North winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...North winds near 5 knots, becoming north to northeast and increasing to 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. Showers likely with a chance of thunderstorms. .WEDNESDAY NIGHT...Northeast to east near 10 knots. Seas 1 foot or less. Nearshore waters a light chop. Showers likely with a chance of thunderstorms. .THURSDAY...Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming a light chop. Showers likely with a chance of thunderstorms. .THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas around 1 foot. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. .FRIDAY...Northeast to east winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. A chance of showers and thunderstorms. .FRIDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas around 1 foot. Nearshore waters a light to moderate chop. A chance of showers. .SATURDAY...East winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers with a slight chance of thunderstorms. $$ GMZ042>044-021445- 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- 1031 PM EDT Mon Jun 1 2026 .OVERNIGHT...Variable winds 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop. A slight chance of showers and thunderstorms. .TUESDAY...North winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...North winds near 5 knots, becoming variable. Seas 1 foot or less. Nearshore waters smooth. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...North winds near 5 knots, becoming north to northeast and increasing to 5 to 10 knots. Seas 1 foot or less, building to around 1 foot. Nearshore waters smooth, becoming smooth to a light chop. A chance of showers and thunderstorms. .WEDNESDAY NIGHT...Northeast winds increasing to near 10 knots. Seas building to 1 to 2 feet. Nearshore waters becoming a light chop. Showers likely with a chance of thunderstorms. .THURSDAY...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Showers likely with a chance of thunderstorms. .THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers and thunderstorms. .FRIDAY...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers. .SATURDAY...Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. A chance of showers with a slight chance of thunderstorms. $$ GMZ052>055-072>075-021445- 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- 1031 PM EDT Mon Jun 1 2026 .OVERNIGHT...Variable winds 5 to 10 knots. Seas around 1 foot. Wave Detail: Northeast to east 1 foot at 3 seconds. A slight chance of showers and thunderstorms. .TUESDAY...Northeast to east winds near 5 knots. Seas around 1 foot. Wave Detail: East 1 foot at 3 seconds. A slight chance of showers and thunderstorms. .TUESDAY NIGHT...Northeast to east winds 5 to 10 knots, becoming east to southeast. Seas around 1 foot. Wave Detail: Northeast to east 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...East winds near 5 knots, becoming north to northeast. Seas around 1 foot. Showers likely with a chance of thunderstorms. .WEDNESDAY NIGHT...Northeast to east winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Showers likely with a chance of thunderstorms. .THURSDAY...East winds near 10 knots. Seas 2 to 3 feet. Showers likely with a chance of thunderstorms. .THURSDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. .FRIDAY...Northeast to east winds near 10 knots. Seas 2 to 3 feet. A chance of thunderstorms with a slight chance of showers. .FRIDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers. .SATURDAY...Northeast to east winds near 10 knots. Seas 2 to 3 feet. A slight chance of showers. .SATURDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet. A chance of showers with a slight chance of thunderstorms. $$ GMZ033-034-021445- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1031 PM EDT Mon Jun 1 2026 .OVERNIGHT...Variable winds 5 to 10 knots. Seas around 1 foot. Wave Detail: Northwest 1 foot at 3 seconds. A slight chance of showers and thunderstorms. .TUESDAY...North winds near 5 knots, becoming north to northeast. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 3 seconds. A chance of showers with a slight chance of thunderstorms. .TUESDAY NIGHT...North to northeast winds near 5 knots. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. A chance of showers with a slight chance of thunderstorms. .WEDNESDAY...North to northeast winds 5 to 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms. .WEDNESDAY NIGHT...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. .THURSDAY...Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. .THURSDAY NIGHT...Northeast to east winds near 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. .FRIDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. .FRIDAY NIGHT...Northeast to east winds near 10 knots. Seas 1 to 2 feet. A slight chance of showers. .SATURDAY...East winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. .SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 2 feet. A slight chance of showers and thunderstorms. $$ MJV