Coastal Waters Forecast
Issued by NWS Key West, FL
Issued by NWS Key West, FL
436 FZUS52 KKEY 212131 CWFKEY Coastal Waters Forecast for the Florida Keys National Weather Service Key West FL 431 PM EST Thu Nov 21 2024 Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef to south of Dry Tortugas, and the extreme southeastern Gulf of Mexico, 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. GMZ005-220330- Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas 431 PM EST Thu Nov 21 2024 .SYNOPSIS...Fresh northwest to northerly breezes will persist across the western waters while the brief lull in the eastern waters will rapidly freshen this evening. Moderate to fresh northwest to northerly breezes will continue through the remainder of the week, with considerable diurnal speed variations. High pressure will then advance eastward through the Gulf Coast states this weekend resulting in winds relaxing and veering northeast to east northeasterly. The Approximate Shoreward Edge of the Gulf Stream as of November 12... 31 NM South of Dry Tortugas Light...on Loggerhead Key. 9 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 2 NM South of Sand Key Light...off Key West. 5 NM South of Looe Key...off Big Pine Key. 8 NM South of Sombrero Key Light...off Marathon. 14 NM Southeast of Alligator Reef Light...off Islamorada. 19 NM Southeast of Molasses Reef Light...off Key Largo. 10 NM East of Carysfort Reef Light...off Ocean Reef. Gulf Stream Information Courtesy of the National Weather Service in Key West based on products from the Real Time Ocean Forecast System. $$ GMZ031-220330- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds 10 to 15 knots increasing to 20 to 25 knots. Bay waters light to moderate chop, becoming very rough. .FRIDAY...Northwest to north winds near 20 knots, becoming near 15 knots. Bay waters rough, becoming a moderate chop. .FRIDAY NIGHT...Northwest to north winds 10 to 15 knots. Bay waters a light to moderate chop. .SATURDAY...North winds 10 to 15 knots. Bay waters a light to moderate chop. .SATURDAY NIGHT...North to northeast winds near 10 knots. Bay waters a light chop. .SUNDAY...Northeast winds near 10 knots. Bay waters a light chop. .SUNDAY NIGHT...Northeast to east winds near 10 knots. Bay waters a light chop. .MONDAY...Northeast to east winds near 10 knots. Bay waters a light chop. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Northeast winds 10 to 15 knots. Bay waters a light to moderate chop. $$ GMZ032-220330- Bayside and Gulf side from Craig Key to west end of Seven Mile Bridge- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds near 15 knots, increasing to 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Nearshore waters a moderate chop, becoming very rough. .FRIDAY...North winds near 20 knots, becoming northwest to north near 15 knots. Seas 2 to 3 feet. Nearshore waters rough, becoming a moderate chop. .FRIDAY NIGHT...Northwest to north winds near 15 knots, becoming north. Seas 2 to 3 feet. Nearshore waters a moderate chop. .SATURDAY...North winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop, becoming a light chop. .SATURDAY NIGHT...North to northeast winds near 10 knots. Seas 1 foot or less. Nearshore waters a light chop. .SUNDAY...Northeast winds near 10 knots. Seas 1 foot or less. Nearshore waters a light chop. .SUNDAY NIGHT...Northeast to east winds near 10 knots. Seas 1 foot or less. Nearshore waters a light chop. .MONDAY...Northeast to east winds near 10 knots. Seas 1 foot or less. Nearshore waters a light chop. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas around 1 foot. Nearshore waters a light to moderate chop. $$ GMZ035-220330- Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 7 feet, occasionally to 9 feet west of the Marquesas Keys. Nearshore waters very rough. .FRIDAY...Northwest to north winds near 20 knots, decreasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally to 8 feet west of the Marquesas Keys. Nearshore waters rough, becoming choppy. .FRIDAY NIGHT...Northwest to north winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet west of the Marquesas Keys. Nearshore waters choppy, becoming a moderate chop. .SATURDAY...North winds near 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming a light chop. .SATURDAY NIGHT...North to northeast winds near 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore waters a light chop. .SUNDAY...Northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .SUNDAY NIGHT AND MONDAY...Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. .MONDAY NIGHT...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. $$ GMZ042-220330- Hawk Channel from Ocean Reef to Craig Key out to the reef- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds 10 to 15 knots, increasing to 20 to 25 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop, becoming very rough. .FRIDAY...Northwest to north winds 15 to 20 knots, decreasing near 15 knots. Seas 2 to 3 feet. Nearshore waters choppy, becoming a moderate chop. .FRIDAY NIGHT...Northwest to north winds near 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop. .SATURDAY...North winds near 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop. .SATURDAY NIGHT...North to northeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. .SUNDAY...Northeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. .SUNDAY NIGHT AND MONDAY...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .MONDAY NIGHT...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. $$ GMZ043-220330- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds near 15 knots, increasing to 20 to 25 knots. Seas 2 to 3 feet. Nearshore waters a moderate chop, becoming very rough. .FRIDAY...North winds near 20 knots, becoming northwest to north 15 to 20 knots. Seas 2 to 3 feet. Nearshore waters choppy, becoming a light to moderate chop. .FRIDAY NIGHT...Northwest to north winds near 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop. .SATURDAY...North winds near 15 knots. Seas 1 to 2 feet. Nearshore waters a moderate chop. .SATURDAY NIGHT...North to northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .SUNDAY...Northeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. .SUNDAY NIGHT AND MONDAY...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .MONDAY NIGHT...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. $$ GMZ044-220330- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 6 to 7 feet, occasionally to 9 feet west of Cosgrove Shoal Light. Nearshore waters very rough. .FRIDAY...Northwest to north winds near 20 knots, decreasing to 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet, occasionally to 8 feet west of Cosgrove Shoal Light. Nearshore waters rough, becoming choppy. .FRIDAY NIGHT...Northwest to north winds near 15 knots. Seas 2 to 3 feet, except 3 to 5 feet, occasionally to 6 feet west of Cosgrove Shoal Light. Nearshore waters a moderate chop. .SATURDAY...North to northeast winds near 15 knots. Seas 1 to 2 feet, except 3 to 4 feet, occasionally to 5 feet west of Cosgrove Shoal Light. Nearshore waters a moderate chop. .SATURDAY NIGHT...North to northeast winds near 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light chop. .SUNDAY...Northeast to east winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. $$ GMZ052-072-220330- Straits of Florida from Ocean Reef to Craig Key out 20 NM- Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds 10 to 15 knots, increasing to 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 6 feet at 6 seconds. .FRIDAY...Northwest to north winds near 20 knots, decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: West to northwest 6 feet at 8 seconds and north 5 feet at 7 seconds. .FRIDAY NIGHT...Northwest to north winds near 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: North to northeast 4 feet at 7 seconds and west to northwest 2 feet at 8 seconds. .SATURDAY...North winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 4 feet, occasionally to 5 feet. .SATURDAY NIGHT...Northeast winds near 10 knots. Seas 2 to 3 feet. .SUNDAY...Northeast to east winds near 10 knots. Seas 2 to 3 feet. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. $$ GMZ053-073-220330- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds near 15 knots, increasing to 20 to 25 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: West to northwest 5 feet at 6 seconds. .FRIDAY...North winds near 20 knots, becoming northwest to north near 15 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest to north 4 feet at 4 seconds and northeast 4 feet at 7 seconds. .FRIDAY NIGHT...Northwest to north winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northeast to east 3 feet at 7 seconds and northwest to north 2 feet at 4 seconds. .SATURDAY...North winds 10 to 15 knots. Seas 2 to 3 feet. .SATURDAY NIGHT...Northeast winds near 10 knots. Seas 2 to 3 feet. .SUNDAY...Northeast to east winds near 10 knots. Seas around 2 feet. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. $$ GMZ054-055-074-075-220330- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds 20 to 25 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave Detail: Northwest 7 feet at 8 seconds. .FRIDAY...Northwest to north winds near 20 knots, decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 6 feet at 8 seconds and northeast to east 2 feet at 7 seconds. .FRIDAY NIGHT...Northwest to north winds near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 5 feet at 7 seconds and east 2 feet at 7 seconds. .SATURDAY...North to northeast winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SATURDAY NIGHT...Northeast winds near 10 knots. Seas 2 to 3 feet. .SUNDAY...Northeast to east winds near 10 knots. Seas 2 to 3 feet. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. $$ GMZ033-034-220330- Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel- 431 PM EST Thu Nov 21 2024 ...SMALL CRAFT ADVISORY IN EFFECT... .TONIGHT...Northwest to north winds 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail: Northwest 7 feet at 8 seconds. .FRIDAY...Northwest to north winds near 20 knots, decreasing to 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave Detail: Northwest 6 feet at 7 seconds. .FRIDAY NIGHT...Northwest to north winds 15 to 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest 5 feet at 7 seconds. .SATURDAY...North to northeast winds near 15 knots, decreasing to near 10 knots. Seas 3 to 4 feet, occasionally to 5 feet. .SATURDAY NIGHT...Northeast winds near 10 knots. Seas 2 to 3 feet. .SUNDAY...Northeast winds near 10 knots. Seas around 2 feet. .SUNDAY NIGHT...Northeast to east winds near 10 knots, becoming 10 to 15 knots. Seas 1 to 2 feet. .MONDAY AND MONDAY NIGHT...Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. .TUESDAY AND TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 to 2 feet. $$ AP