Coastal Waters Forecast
Issued by NWS Miami, FL
Issued by NWS Miami, FL
944 FZUS52 KMFL 210806 CWFMFL Coastal Waters Forecast for Florida National Weather Service Miami FL 406 AM EDT Fri Aug 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 Fri Aug 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... A gentle west-southwest breeze is expected across the Gulf waters for the next several days, with gentle southerly winds prevailing across the Atlantic waters. These winds over the Atlantic will shift more southeasterly as the weekend progresses. Scattered showers and storms are expected each day, mainly in the morning hours and again in the late evening hours across the local waters. Locally hazardous winds and rough seas may occur near any storm. Gulf Stream Hazards: None The approximate location of the west wall of the Gulf Stream as of Aug 19, 2026. 22 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. $$ AMZ650-670-212100- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM- Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM- 406 AM EDT Fri Aug 21 2026 .TODAY...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds and N 1 foot at 4 seconds. Intracoastal waters light chop. A slight chance of showers and tstms. .TONIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 2 seconds and N 1 foot at 4 seconds. Intracoastal waters light chop. .SAT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 3 seconds. Intracoastal waters light chop. .SAT NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 3 seconds. Intracoastal waters light chop. .SUN...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Intracoastal waters light chop. A chance of showers and tstms late. .SUN NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 4 seconds. Intracoastal waters light chop. A chance of showers and tstms late. .MON...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .MON NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .TUE...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .TUE NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. Winds and seas higher in and near tstms. $$ 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 Fri Aug 21 2026 .TODAY...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 2 seconds. Intracoastal waters light chop. A slight chance of showers and tstms early this morning. A chance of showers and tstms late this morning, then a slight chance of showers and tstms early this afternoon. .TONIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 4 seconds. Intracoastal waters light chop. .SAT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 2 seconds. Intracoastal waters light chop. .SAT NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. A chance of showers and tstms after midnight. .SUN...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 2 seconds. Intracoastal waters light chop. A chance of showers and tstms early in the morning. .SUN NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 3 seconds. Intracoastal waters light chop. .MON...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .MON NIGHT...E winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. A chance of showers and tstms late. .TUE...E winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. A chance of showers and tstms until late afternoon. .TUE NIGHT...E winds 5 to 10 kt. Seas less than 2 ft or less, then around 2 ft after midnight. Intracoastal waters light chop. A chance of showers and tstms after midnight. Winds and seas higher in and near tstms. $$ GMZ656-657-676-212100- Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM- Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM- Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM- 406 AM EDT Fri Aug 21 2026 .TODAY...SW winds around 5 kt. Seas less than 2 ft or less. Wave Detail: NW 1 foot at 5 seconds. Bay and inland waters smooth. A chance of showers and tstms early this morning, then a chance of showers with a slight chance of tstms late this morning. .TONIGHT...SW winds around 5 kt, becoming S after midnight. Seas less than 2 ft or less. Wave Detail: NW 1 foot at 4 seconds. Bay and inland waters smooth. .SAT...SW winds around 5 kt. Seas less than 2 ft or less. Wave Detail: NW 1 foot at 4 seconds. Bay and inland waters smooth. .SAT NIGHT...SW winds around 5 kt, becoming S after midnight. Seas less than 2 ft or less. Bay and inland waters smooth. .SUN...SW winds around 5 kt. Seas less than 2 ft or less. Bay and inland waters smooth. A chance of showers and tstms late. .SUN NIGHT...SW winds around 5 kt, becoming SE after midnight. Seas less than 2 ft or less. Wave Detail: NW 1 foot at 4 seconds. Bay and inland waters smooth. .MON...SE winds around 5 kt. Seas less than 2 ft or less. Bay and inland waters smooth. A chance of showers and tstms late. .MON NIGHT...SE winds around 5 kt. Seas less than 2 ft or less. Bay and inland waters smooth. A chance of showers and tstms early in the evening. .TUE...SE winds 5 to 10 kt. Seas less than 2 ft or less. Bay and inland waters light chop. A chance of showers and tstms late. .TUE NIGHT...E winds 5 to 10 kt. Seas less than 2 ft or less. Bay and inland waters light chop. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ610-212100- Lake Okeechobee- 406 AM EDT Fri Aug 21 2026 .TODAY...SW winds around 5 kt. Lake waters smooth. A chance of showers and tstms this afternoon. .TONIGHT...S winds 5 to 10 kt. Lake waters light chop. A chance of showers and tstms early in the evening. .SAT...SW winds 5 to 10 kt. Lake waters light chop. .SAT NIGHT...SW winds 5 to 10 kt. Lake waters light chop. A chance of showers and tstms early in the evening. .SUN...SW winds around 5 kt. Lake waters smooth. A chance of showers and tstms in the afternoon. .SUN NIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Lake waters light chop. A chance of showers and tstms early in the evening. .MON...SE winds around 5 kt. Lake waters smooth. A chance of showers and tstms in the afternoon. .MON NIGHT...SE winds 5 to 10 kt. Lake waters light chop. A chance of showers and tstms early in the evening. .TUE...SE winds around 5 kt. Lake waters smooth. A chance of showers and tstms in the afternoon. .TUE NIGHT...SE winds 5 to 10 kt. Lake waters light chop. A chance of showers and tstms early in the evening. Winds and waves higher in and near tstms. $$ AMZ630-212100- Biscayne Bay- 406 AM EDT Fri Aug 21 2026 .TODAY...S winds 5 to 10 kt. Light chop. A slight chance of showers and tstms late this morning and afternoon. .TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Light chop. .SAT...S winds around 5 kt, becoming SE in the afternoon. Light chop. .SAT NIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Light chop. A chance of showers and tstms early in the evening. .SUN...S winds around 5 kt, becoming SE in the afternoon. Light chop. A chance of showers and tstms in the afternoon. .SUN NIGHT...SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Light chop. A chance of showers and tstms early in the evening. .MON...SE winds around 5 kt, becoming E in the afternoon. Light chop. .MON NIGHT...E winds 5 to 10 kt. Light chop. .TUE...E winds 5 to 10 kt. Light chop. A chance of showers and tstms. .TUE NIGHT...E winds 5 to 10 kt. Light chop. A chance of showers and tstms after midnight. Winds and waves higher in and near tstms. $$