GMZ005-061530-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1024 PM EST Fri Dec 5 2025
.SYNOPSIS...A low pressure system developing off the North
Carolina Coast will move northeast while strengthening while a
weak and elongated high pressure system remains to its south
through the weekend. This will promote mainly light to gentle
southeast breezes, occasionally 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 Saturday evening 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.
$$
GMZ031-061530- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1024 PM EST Fri Dec 5 2025 OVERNIGHT Variable winds near 5 knots. Bay waters smooth. SATURDAY East to southeast winds 5 to 10 knots. Bay waters smooth to a light chop. SATURDAY NIGHT Southeast winds near 5 knots. Bay waters smooth. Isolated showers. SUNDAY East to southeast winds 5 to 10 knots, becoming south in the afternoon. Bay waters smooth to a light chop. Isolated showers. SUNDAY NIGHT Southwest winds 5 to 10 knots, becoming southwest to west near 10 knots. Bay waters smooth to a light chop, becoming a light chop. Scattered showers. MONDAY Southwest to west winds 10 to 15 knots, becoming west to northwest near 15 knots. Bay waters a light to moderate chop, becoming a moderate chop. Scattered showers. MONDAY NIGHT West to northwest winds near 15 knots, becoming north to northeast. Bay waters a moderate chop. Isolated showers. TUESDAY Northeast winds decreasing to 10 to 15 knots. Bay waters becoming a light to moderate chop. Isolated showers. TUESDAY NIGHT Northeast winds near 10 knots. Bay waters a light chop. Scattered showers. WEDNESDAY West to northwest winds near 10 knots. Bay waters a light chop. Isolated showers. WEDNESDAY NIGHT Northwest winds near 10 knots. Bay waters a light chop. Isolated showers. $$
GMZ031-061530- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1024 PM EST Fri Dec 5 2025 OVERNIGHT Variable winds near 5 knots. Bay waters smooth. SATURDAY East to southeast winds 5 to 10 knots. Bay waters smooth to a light chop. SATURDAY NIGHT Southeast winds near 5 knots. Bay waters smooth. Isolated showers. SUNDAY East to southeast winds 5 to 10 knots, becoming south in the afternoon. Bay waters smooth to a light chop. Isolated showers. SUNDAY NIGHT Southwest winds 5 to 10 knots, becoming southwest to west near 10 knots. Bay 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. Bay waters a light to moderate chop, becoming a moderate chop. Scattered showers. MONDAY NIGHT West to northwest winds near 15 knots, becoming north to northeast. Bay waters a moderate chop. Isolated showers. TUESDAY Northeast winds decreasing to 10 to 15 knots. Bay waters becoming a light to moderate chop. Isolated showers. TUESDAY NIGHT Northeast winds near 10 knots. Bay waters a light chop. Scattered showers. WEDNESDAY West to northwest winds near 10 knots. Bay waters a light chop. Isolated showers. WEDNESDAY NIGHT Northwest winds near 10 knots. Bay waters a light chop. Isolated showers. $$