Coastal Waters Forecast
Issued by NWS Miami, FL
Issued by NWS Miami, FL
919 FZUS52 KMFL 210806 CWFMFL Coastal Waters Forecast for Florida National Weather Service Miami FL 406 AM EDT Mon Sep 21 2026 Atlantic coastal waters from Jupiter Inlet to Ocean Reef out to 60 nm and Gulf coastal waters from East Cape Sable to Chokoloskee out 20 nm and Chokoloskee to Bonita Beach out 60 nm...including the waters of Biscayne Bay and Lake Okeechobee. Seas are provided as a range of the average height of the highest 1/3 of the waves...along with the occasional height of the average highest 10 percent of the waves. AMZ600-GMZ606-212100- 406 AM EDT Mon Sep 21 2026 .Synopsis for Jupiter Inlet to Ocean Reef FL out to 60 nm and for East Cape Sable to Bonita Beach FL out to 60 nm... Gentle southerly winds early this week across the local waters. Scattered thunderstorms possible each day this week which may result in locally hazardous winds and seas. Gulf Stream Hazards: None. The approximate location of the west wall of the Gulf Stream as of Sep 18, 2026. 1 nautical miles north northeast of Fowey Rocks. 7 nautical miles east of Port Everglades. 6 nautical miles south southeast of Lake Worth. 6 nautical miles east southeast of Jupiter Inlet. This data courtesy of the Naval Oceanographic Office. $$ AMZ650-670-212100- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM- Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM- 406 AM EDT Mon Sep 21 2026 .TODAY...SW winds around 5 kt, becoming N this afternoon. Seas less than 2 ft or less. Wave Detail: N 1 foot at 6 seconds. Intracoastal waters smooth. A chance of showers and tstms. .TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds and N 1 foot at 7 seconds. Intracoastal waters light chop. A chance of showers and tstms. .TUE...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and NE 1 foot at 7 seconds. Intracoastal waters light chop. A chance of tstms. A chance of showers until late afternoon, then showers likely late. .TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and N 1 foot at 7 seconds. Intracoastal waters light chop. A chance of tstms. A chance of showers early in the evening, then showers in the late evening and overnight. .WED...S winds around 5 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds and N 1 foot at 7 seconds. Intracoastal waters smooth. Showers with a chance of tstms. .WED NIGHT...S winds around 5 kt, becoming SW after midnight. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds and N 1 foot at 7 seconds. Intracoastal waters smooth. A chance of tstms. Showers until early morning, then a chance of showers late. .THU...NW winds around 5 kt. Seas around 2 ft. Intracoastal waters smooth. Showers likely with a chance of tstms. .THU NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Intracoastal waters light chop. A chance of showers and tstms. .FRI...N winds 5 to 10 kt. Seas 3 to 5 ft, occasionally to 6 ft. Intracoastal waters light chop. A chance of tstms. A chance of showers in the morning, then showers likely in the afternoon. .FRI NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft, occasionally to 8 ft. Intracoastal waters light chop. Showers likely early in the evening. A chance of tstms until early morning. A chance of showers in the late evening and overnight. Winds and seas higher in and near tstms. $$ AMZ651-671-212100- Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM- Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas- 406 AM EDT Mon Sep 21 2026 .TODAY...SW winds around 5 kt. Seas less than 2 ft or less. Wave Detail: SW 1 foot at 3 seconds. Intracoastal waters smooth. A chance of tstms. A chance of showers this morning, then showers likely this afternoon. .TONIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Intracoastal waters light chop. A chance of tstms. .TUE...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds. Intracoastal waters light chop. A chance of tstms. A chance of showers in the morning, then showers likely in the afternoon. .TUE NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 4 seconds and N 1 foot at 5 seconds. Intracoastal waters light chop. Showers with a chance of tstms. .WED...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Intracoastal waters light chop. Showers with a chance of tstms. .WED NIGHT...SE winds around 5 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 3 seconds. Intracoastal waters smooth. A chance of tstms. Showers. .THU...NW winds around 5 kt. Seas less than 2 ft or less. Intracoastal waters smooth. Showers likely with a chance of tstms. .THU NIGHT...N winds around 5 kt. Seas less than 2 ft or less, then around 2 ft after midnight. Intracoastal waters smooth. A chance of tstms. Showers likely early in the evening, then a chance of showers in the late evening and overnight. .FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. Intracoastal waters light chop. A chance of tstms. A chance of showers in the morning, then showers likely in the afternoon. .FRI NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Intracoastal waters light chop. A chance of tstms. Showers likely until early morning, then a chance of showers late. Winds and seas higher in and near tstms. $$ GMZ656-657-676-212100- Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM- Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM- Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM- 406 AM EDT Mon Sep 21 2026 .TODAY...SE winds around 5 kt, becoming S this afternoon. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 2 seconds. Bay and inland waters light chop. A chance of tstms. Showers likely until late afternoon, then a chance of showers late. .TONIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 2 seconds. Bay and inland waters light chop. A chance of showers and tstms. .TUE...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Bay and inland waters light chop. A chance of tstms. A chance of showers in the morning, then showers likely in the afternoon. .TUE NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Bay and inland waters light chop. Showers likely with a chance of tstms. .WED...S winds around 5 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Bay and inland waters smooth. A chance of tstms. Showers. .WED NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 4 seconds. Bay and inland waters light chop. A chance of tstms. Showers likely until early morning, then a chance of showers late. .THU...E winds 5 to 10 kt, becoming SE in the afternoon. Seas less than 2 ft or less. Bay and inland waters light chop. A chance of tstms. Showers likely until late afternoon, then a chance of showers late. .THU NIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Seas less than 2 ft or less, then 1 to 2 ft after midnight. Bay and inland waters light chop. A chance of tstms until early morning. A chance of showers. .FRI...NE winds 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Seas 1 to 2 ft. Bay and inland waters light chop. A chance of showers and tstms. .FRI NIGHT...NE winds 10 to 15 kt. Seas 1 to 2 ft, building to 2 to 3 ft after midnight. Bay and inland waters light chop. Showers likely with a chance of tstms until early morning, then a chance of showers late. Winds and seas higher in and near tstms. $$ AMZ610-212100- Lake Okeechobee- 406 AM EDT Mon Sep 21 2026 .TODAY...NE winds around 5 kt, becoming SE this afternoon. Lake waters smooth. A chance of showers and tstms early this afternoon. Showers and tstms likely late. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Lake waters light chop. Showers and tstms likely early in the evening. .TUE...S winds around 5 kt. Lake waters smooth. A chance of showers and tstms early in the afternoon. Showers and tstms likely late. .TUE NIGHT...SE winds around 5 kt. Lake waters smooth. Showers and tstms likely early in the evening, then a chance of tstms late in the evening. A chance of showers in the late evening and early morning. .WED...SE winds around 5 kt. Lake waters smooth. A chance of showers in the morning. A chance of tstms late in the morning, then showers and tstms likely in the afternoon. .WED NIGHT...E winds around 5 kt, becoming SW after midnight. Lake waters smooth. Showers and tstms likely early in the evening. .THU...N winds around 5 kt. Lake waters smooth. Showers and tstms likely in the afternoon. .THU NIGHT...N winds 5 to 10 kt. Lake waters light chop. Showers and tstms likely early in the evening. .FRI...N winds 5 to 10 kt. Lake waters light chop. A chance of showers and tstms in the afternoon. .FRI NIGHT...NE winds 10 to 15 kt. Lake waters a moderate chop. A chance of showers and tstms early in the evening. Winds and waves higher in and near tstms. $$ AMZ630-212100- Biscayne Bay- 406 AM EDT Mon Sep 21 2026 .TODAY...SW winds around 5 kt, becoming S this afternoon. Light chop. A chance of tstms this morning. Showers likely. Tstms likely this afternoon. .TONIGHT...S winds 5 to 10 kt. Light chop. A chance of showers and tstms. .TUE...S winds 5 to 10 kt. Light chop. A chance of showers and tstms in the morning, then showers and tstms likely in the afternoon. .TUE NIGHT...S winds 5 to 10 kt. Light chop. Showers likely with a chance of tstms. .WED...S winds around 5 kt. Smooth. A chance of tstms. Showers. .WED NIGHT...SE winds around 5 kt. Smooth. A chance of tstms. Showers until early morning, then a chance of showers late. .THU...N winds around 5 kt, becoming E in the afternoon. Smooth. A chance of showers and tstms in the morning, then showers with tstms likely in the afternoon. .THU NIGHT...E winds around 5 kt, becoming NW after midnight. Smooth. Showers with tstms likely early in the evening, then a chance of showers and tstms in the late evening and early morning. .FRI...N winds around 5 kt. Smooth. A chance of showers and tstms in the morning, then showers and tstms likely in the afternoon. .FRI NIGHT...N winds around 5 kt, increasing to 5 to 10 kt after midnight. Light chop. Showers and tstms likely early in the evening, then a chance of showers and tstms in the late evening and early morning. Winds and waves higher in and near tstms. $$