GMZ005-070930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
427 PM EST Sat Dec 6 2025
.SYNOPSIS...The Florida Keys will lie in a col region through
Sunday. This will promote mainly light to gentle southeast
breezes, occasionally becoming variable. Thereafter, a developing
weather system will move out of the Central Plains and into the
Southeast U.S. by Sunday evening. The attendent cold front will
sweep through Monday night with a brief period of moderate to
fresh breezes. Shower coverage will steadily increase starting
today and continuing into early next week.
The Approximate Shoreward Edge of the Gulf Stream as of December 4...
21 NM South of Dry Tortugas Light...on Loggerhead Key.
21 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
22 NM South of Sand Key Light...off Key West.
15 NM South of Looe Key...off Big Pine Key.
8 NM Southeast of Sombrero Key Light...off Marathon.
6 NM Southeast of Alligator Reef Light...off Islamorada.
3 NM Southeast of Molasses Reef Light...off Key Largo.
1 NM Southeast of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in
Key West based on products from NASA SPoRT.
$$
GMZ042>044-070930- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 427 PM EST Sat Dec 6 2025 TONIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers. SUNDAY East to southeast winds 5 to 10 knots, becoming southeast to south in the afternoon. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers. SUNDAY NIGHT South to southwest winds 5 to 10 knots, becoming southwest to west near 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. Scattered showers. MONDAY Southwest to west winds 10 to 15 knots, becoming west to northwest near 15 knots. Seas building to 1 to 2 feet, except building to 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop, becoming a moderate chop. Scattered showers. MONDAY NIGHT Northwest winds near 15 knots, becoming north to northeast. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a moderate chop. Isolated showers. TUESDAY Northeast winds near 15 knots, decreasing to 10 to 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, becoming a light to moderate chop. Scattered showers. TUESDAY NIGHT Northeast winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. Scattered showers. WEDNESDAY Northeast winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. Isolated showers. WEDNESDAY NIGHT Northwest to north winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers. THURSDAY North to northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers. THURSDAY NIGHT Northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers. $$
GMZ042>044-070930- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 427 PM EST Sat Dec 6 2025 TONIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers. SUNDAY East to southeast winds 5 to 10 knots, becoming southeast to south in the afternoon. Seas around 1 foot. Nearshore waters smooth to a light chop. Isolated showers. SUNDAY NIGHT South to southwest winds 5 to 10 knots, becoming southwest to west near 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. Scattered showers. MONDAY Southwest to west winds 10 to 15 knots, becoming west to northwest near 15 knots. Seas building to 1 to 2 feet, except building to 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop, becoming a moderate chop. Scattered showers. MONDAY NIGHT Northwest winds near 15 knots, becoming north to northeast. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a moderate chop. Isolated showers. TUESDAY Northeast winds near 15 knots, decreasing to 10 to 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, becoming a light to moderate chop. Scattered showers. TUESDAY NIGHT Northeast winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. Scattered showers. WEDNESDAY Northeast winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of Cosgrove Shoal Light. Nearshore waters a light to moderate chop. Isolated showers. WEDNESDAY NIGHT Northwest to north winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers. THURSDAY North to northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers. THURSDAY NIGHT Northeast winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated showers. $$