GMZ005-100230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1017 AM EDT Mon Mar 9 2026
.SYNOPSIS...High pressure is centered near Bermuda with the
western periphery of this ridge extending west into Florida and
the Gulf. As the high retreats further into the Atlantic this
week, breezes will shift to the east to southeast. A decaying
frontal boundary is anticipated to drift southeastward across the
Gulf late week which may create for a chaotic wind pattern across
the Florida Keys coastal waters.
The Approximate Shoreward Edge of the Gulf Stream as of March 7...
55 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
7 NM South of Sand Key Light...off Key West.
8 NM South of Looe Key...off Big Pine Key.
10 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
5 NM Southeast of Molasses Reef Light...off Key Largo.
3 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 and RTOFS.
$$
GMZ031-100230- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1017 AM EDT Mon Mar 9 2026 THIS AFTERNOON East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers. TONIGHT AND TUESDAY East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers. TUESDAY NIGHT East winds near 15 knots. Bay waters a moderate chop. Isolated showers. WEDNESDAY East to southeast winds near 15 knots. Bay waters a moderate chop. Isolated showers. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots, becoming southeast. Bay waters a light to moderate chop. Isolated showers. THURSDAY Southeast to south winds near 10 knots, becoming south to southwest and decreasing to 5 to 10 knots. Bay waters a light chop, becoming smooth to a light chop. Isolated showers. THURSDAY NIGHT South to southwest winds near 5 knots, becoming southeast and increasing to 5 to 10 knots. Bay waters smooth, becoming smooth to a light chop. Isolated showers. FRIDAY East to southeast winds 5 to 10 knots, becoming variable and decreasing to near 5 knots. Bay waters smooth to a light chop, becoming smooth. Scattered showers and isolated thunderstorms. FRIDAY NIGHT Variable winds near 5 knots, becoming north to northeast. Bay waters smooth. Isolated showers and thunderstorms. $$
GMZ031-100230- Florida Bay including Barnes Sound, Blackwater Sound, and Buttonwood Sound- 1017 AM EDT Mon Mar 9 2026 THIS AFTERNOON East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers. TONIGHT AND TUESDAY East winds 10 to 15 knots. Bay waters a light to moderate chop. Isolated showers. TUESDAY NIGHT East winds near 15 knots. Bay waters a moderate chop. Isolated showers. WEDNESDAY East to southeast winds near 15 knots. Bay waters a moderate chop. Isolated showers. WEDNESDAY NIGHT East to southeast winds 10 to 15 knots, becoming southeast. Bay waters a light to moderate chop. Isolated showers. THURSDAY Southeast to south winds near 10 knots, becoming south to southwest and decreasing to 5 to 10 knots. Bay waters a light chop, becoming smooth to a light chop. Isolated showers. THURSDAY NIGHT South to southwest winds near 5 knots, becoming southeast and increasing to 5 to 10 knots. Bay waters smooth, becoming smooth to a light chop. Isolated showers. FRIDAY East to southeast winds 5 to 10 knots, becoming variable and decreasing to near 5 knots. Bay waters smooth to a light chop, becoming smooth. Scattered showers and isolated thunderstorms. FRIDAY NIGHT Variable winds near 5 knots, becoming north to northeast. Bay waters smooth. Isolated showers and thunderstorms. $$