FZUS52 KMFL 180756 CWFMFL Coastal Waters Forecast for Florida National Weather Service Miami FL 356 AM EDT Mon May 18 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-GMZ606-182000- 356 AM EDT Mon May 18 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 to fresh easterly flow will remain established over the local waters early this week, shifting a little east-northeast at times. Isolated to scattered showers and storms will be possible each day, but will favor the Gulf waters under this easterly wind regime. Gustier winds and rough seas are possible in and around thunderstorm activity. Gulf Stream Hazards: None. The approximate location of the west wall of the Gulf Stream as of May 13, 2026. 6 nautical miles south southeast of Fowey Rocks. 10 nautical miles northeast of Port Everglades. 6 nautical miles south southeast of Lake Worth. 6 nautical miles east northeast of Jupiter Inlet. This data courtesy of the Naval Oceanographic Office. $$ AMZ650-670-182000- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM- Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM- 356 AM EDT Mon May 18 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...E winds 15 to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds and NW 1 foot at 6 seconds. Intracoastal waters choppy in exposed areas. A slight chance of showers and tstms late this morning and early afternoon. A chance of showers and tstms late. .TONIGHT...E winds 15 to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds and NW 1 foot at 6 seconds. Intracoastal waters choppy in exposed areas. A chance of tstms in the evening. A chance of showers. .TUE...E winds 15 to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds and NW 1 foot at 6 seconds. Intracoastal waters choppy in exposed areas. A chance of showers. A chance of tstms in the afternoon. .TUE NIGHT...E winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 5 seconds and NW 1 foot at 6 seconds. Intracoastal waters a moderate chop. A chance of tstms in the evening. A chance of showers. .WED...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and NW 1 foot at 5 seconds. Intracoastal waters a moderate chop. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and NW 1 foot at 5 seconds. Intracoastal waters a moderate chop. A chance of showers. .THU...E winds 10 to 15 kt. Seas around 2 ft. Intracoastal waters a moderate chop. A chance of showers in the morning. .THU...SE winds 10 to 15 kt. Seas around 2 ft. Intracoastal waters a moderate chop. A chance of tstms. A chance of showers. .FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Intracoastal waters a moderate chop. A chance of showers. Winds and seas higher in and near tstms. $$ AMZ651-671-182000- 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- 356 AM EDT Mon May 18 2026 ...SMALL CRAFT SHOULD EXERCISE CAUTION... .TODAY...E winds 15 to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds and N 1 foot at 6 seconds. Intracoastal waters choppy in exposed areas. A slight chance of showers and tstms late this morning and afternoon. .TONIGHT...E winds 15 to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds and N 1 foot at 6 seconds. Intracoastal waters choppy in exposed areas. A chance of showers. .TUE...E winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds and N 1 foot at 6 seconds. Intracoastal waters a moderate chop. A chance of showers. A chance of tstms in the afternoon. .TUE NIGHT...E winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and N 1 foot at 6 seconds. Intracoastal waters a moderate chop. A chance of showers and tstms. .WED AND WED NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and N 1 foot at 6 seconds. Intracoastal waters a moderate chop. A chance of showers. .THU...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and N 1 foot at 4 seconds. Intracoastal waters light chop. .THU...E winds 10 to 15 kt. Seas around 2 ft, then 1 foot or less. Intracoastal waters a moderate chop. A chance of showers. .FRI NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. Intracoastal waters a moderate chop. A chance of showers. Winds and seas higher in and near tstms. $$ GMZ656-657-676-182000- Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM- Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM- Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM- 356 AM EDT Mon May 18 2026 .TODAY...E winds 10 to 15 kt, diminishing to 5 to 10 kt late. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds. Bay and inland waters light chop. A chance of showers and tstms this afternoon. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds. Bay and inland waters light chop. A chance of showers and tstms in the evening. .TUE...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 3 seconds. Bay and inland waters light chop. A chance of showers in the morning, then showers likely with a chance of tstms in the afternoon. .TUE NIGHT...E winds 10 to 15 kt. Seas less than 2 ft or less, then around 2 ft after midnight. Wave Detail: E 1 foot at 3 seconds, becoming E 2 ft at 3 seconds. Bay and inland waters light chop. A chance of showers and tstms in the evening. .WED AND WED NIGHT...E winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: E 2 ft at 3 seconds. Bay and inland waters light chop. A chance of showers and tstms. .THU...E winds 5 to 10 kt, becoming SE in the afternoon. Seas less than 2 ft or less. Wave Detail: E 1 foot at 3 seconds. Bay and inland waters light chop. A chance of showers and tstms in the afternoon. .THU NIGHT...E winds around 5 kt. Seas less than 2 ft or less. Bay and inland waters smooth. .FRI...SE winds around 5 kt. Seas less than 2 ft or less. Bay and inland waters smooth. A chance of showers and tstms in the afternoon. .FRI NIGHT...SE winds 5 to 10 kt. Seas less than 2 ft or less. Bay and inland waters light chop. Winds and seas higher in and near tstms. $$ AMZ610-182000- Lake Okeechobee- 356 AM EDT Mon May 18 2026 .TODAY...E winds 10 to 15 kt. Lake waters a moderate chop. A slight chance of showers and tstms this afternoon. .TONIGHT...E winds 10 to 15 kt. Lake waters a moderate chop. .TUE...E winds 10 to 15 kt. Lake waters a moderate chop. A chance of showers and tstms in the afternoon. .TUE NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Lake waters a moderate chop. A chance of showers and tstms in the evening. .WED AND WED NIGHT...E winds 5 to 10 kt. Lake waters light chop. .THU THROUGH FRI...SE winds 5 to 10 kt. Lake waters light chop. A chance of showers and tstms. Winds and waves higher in and near tstms. $$ AMZ630-182000- Biscayne Bay- 356 AM EDT Mon May 18 2026 .TODAY...E winds around 15 kt. A moderate chop. A chance of showers with a slight chance of tstms late this morning and early afternoon. A slight chance of showers and tstms late. .TONIGHT...E winds 15 to 20 kt. Choppy. A chance of showers. .TUE...E winds around 15 kt. A moderate chop. A chance of showers and tstms. .TUE NIGHT...E winds 10 to 15 kt. A moderate chop. A chance of showers and tstms. .WED AND WED NIGHT...E winds 10 to 15 kt. A moderate chop. .THU THROUGH FRI...SE winds 5 to 10 kt. Light chop. A chance of showers and tstms. Winds and waves higher in and near tstms. $$