Coastal Waters Forecast
Issued by NWS Miami, FL
Issued by NWS Miami, FL
681 FZUS52 KMFL 192006 CWFMFL Coastal Waters Forecast for Florida National Weather Service Miami FL 406 PM EDT Wed Aug 19 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-GMZ606-200900- 406 PM EDT Wed Aug 19 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 moderate west to northwest breeze will continue across the Gulf waters before becoming gentle on Thursday, while gentle southerly winds prevail across the Atlantic waters through the end of the week. Isolated showers and thunderstorms are possible each morning across the Gulf waters, increasing in coverage in the seabreeze zones each evening. These storms 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 Aug 17, 2026. 57 nautical miles north northeast of Fowey Rocks. 25 nautical miles northeast of Port Everglades. 9 nautical miles north northeast of Lake Worth. 6 nautical miles east northeast of Jupiter Inlet. This data courtesy of the Naval Oceanographic Office. $$ AMZ650-670-200900- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM- Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM- 406 PM EDT Wed Aug 19 2026 .TONIGHT...S winds around 5 kt. Seas less than 2 ft or less. Wave Detail: N 1 foot at 5 seconds. Intracoastal waters smooth. A chance of showers and tstms early this evening. .THU...SW winds around 5 kt, becoming S in the afternoon. Seas less than 2 ft or less. Wave Detail: N 1 foot at 5 seconds. Intracoastal waters light chop. .THU NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 2 seconds and N 1 foot at 5 seconds. Intracoastal waters light chop. .FRI...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds and N 1 foot at 4 seconds. Intracoastal waters light chop. A chance of showers and tstms late. .FRI NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Intracoastal waters light chop. .SAT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 3 seconds. Intracoastal waters light chop. A chance of showers and tstms late. .SAT NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. A chance of showers and tstms late. .SUN...S winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .SUN NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .MON...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .MON NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. Winds and seas higher in and near tstms. $$ AMZ651-671-200900- 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 PM EDT Wed Aug 19 2026 .TONIGHT...SW winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 3 seconds. Intracoastal waters light chop. A slight chance of showers and tstms early this evening. .THU...SW winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: SE 1 foot at 3 seconds. Intracoastal waters light chop. .THU NIGHT...S winds 5 to 10 kt. Seas less than 2 ft or less. Wave Detail: S 1 foot at 4 seconds. Intracoastal waters light chop. .FRI...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. .FRI NIGHT...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. A chance of showers and tstms late. .SAT...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. .SAT NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .SUN...SE winds 5 to 10 kt. Seas less than 2 ft or less. Intracoastal waters light chop. .SUN NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. 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. Winds and seas higher in and near tstms. $$ GMZ656-657-676-200900- 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 PM EDT Wed Aug 19 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds. Bay and inland waters light chop. A slight chance of showers and tstms. .THU...NW winds around 5 kt, becoming W in the afternoon. Seas less than 2 ft or less. Wave Detail: NW 1 foot at 5 seconds. Bay and inland waters light chop. A chance of showers and tstms in the late morning and early afternoon. .THU NIGHT...NW winds 5 to 10 kt, becoming S after midnight. Seas less than 2 ft or less. Wave Detail: NW 1 foot at 5 seconds. Bay and inland waters light chop. A chance of showers and tstms late. .FRI...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. A chance of showers and tstms until late afternoon. .FRI NIGHT...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...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...W winds around 5 kt, becoming S after midnight. Seas less than 2 ft or less. Bay and inland waters smooth. .SUN...S winds around 5 kt, becoming SW in the afternoon. Seas less than 2 ft or less. Bay and inland waters smooth. A chance of showers and tstms late. .SUN NIGHT...W winds around 5 kt, becoming SE after midnight. Seas less than 2 ft or less. 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...E winds around 5 kt. Seas less than 2 ft or less. Bay and inland waters smooth. A chance of showers and tstms until early morning. Winds and seas higher in and near tstms. $$ AMZ610-200900- Lake Okeechobee- 406 PM EDT Wed Aug 19 2026 .TONIGHT...W winds around 5 kt. Lake waters smooth. A chance of showers and tstms early this evening, then a slight chance of showers and tstms late this evening. .THU...NW winds around 5 kt, becoming SW in the afternoon. Lake waters smooth. A chance of showers and tstms in the afternoon. .THU NIGHT...S winds around 5 kt. Lake waters smooth. A chance of showers and tstms in the evening. .FRI...SW winds around 5 kt. Lake waters smooth. Showers and tstms likely in the afternoon. .FRI NIGHT...S winds 5 to 10 kt. Lake waters light chop. 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. .SAT...SW winds around 5 kt. Lake waters smooth. A chance of showers and tstms in the afternoon. .SAT NIGHT...S 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. Lake waters light chop. A chance of showers and tstms early in the evening. .MON...S 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. Winds and waves higher in and near tstms. $$ AMZ630-200900- Biscayne Bay- 406 PM EDT Wed Aug 19 2026 .TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Light chop. A chance of showers and tstms early this evening. .THU...W winds around 5 kt, becoming S in the afternoon. Light chop. A chance of showers and tstms late. .THU NIGHT...S winds 5 to 10 kt. Light chop. A chance of showers and tstms early in the evening. .FRI...S winds 5 to 10 kt. Light chop. A chance of showers and tstms in the afternoon. .FRI NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Light chop. A chance of showers and tstms early in the evening. .SAT...S winds around 5 kt, becoming SE in the afternoon. Light chop. A chance of showers and tstms in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt. Light chop. A chance of showers and tstms early in the evening. .SUN...S winds around 5 kt, becoming SE in the afternoon. Light chop. A chance of showers and tstms in the afternoon. .SUN NIGHT...SE winds 5 to 10 kt. Light chop. A chance of showers and tstms early in the evening. .MON...SE winds 5 to 10 kt. Light chop. .MON NIGHT...E winds 5 to 10 kt. Light chop. Winds and waves higher in and near tstms. $$