GMZ005-100845-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
435 PM 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.
$$
GMZ032-035-100845-
Bayside and Gulfside from Craig Key to west end of Seven Mile
Bridge-
Gulf of America from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
435 PM EDT Mon Mar 9 2026
TONIGHT
East winds 10 to 15 knots. Seas around 1 foot, except
1 to 2 feet west of the Marquesas Keys. Nearshore waters a light
to moderate chop. Isolated showers.
TUESDAY
East winds 10 to 15 knots. Seas around 1 foot, except
1 to 2 feet west of the Marquesas Keys. Nearshore waters a light
to moderate chop. Isolated showers.
TUESDAY NIGHT
East winds near 15 knots. Seas 1 to 2 feet,
except building to 2 to 3 feet west of the Marquesas Keys.
Nearshore waters a moderate chop. Isolated showers.
WEDNESDAY
East to southeast winds near 15 knots. Seas 1 to
2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore
waters a moderate chop. Isolated showers.
WEDNESDAY NIGHT
East to southeast winds 10 to 15 knots,
becoming southeast. Seas 1 to 2 feet, except 2 to 3 feet west of
the Marquesas Keys. Nearshore waters a light to moderate chop.
Isolated showers.
THURSDAY
Southeast to south winds near 10 knots, becoming south
to southwest 5 to 10 knots. Seas around 1 foot, except subsiding
to 1 to 2 feet west of the Marquesas Keys. Nearshore waters a
light chop, becoming smooth to a light chop. Isolated showers.
THURSDAY NIGHT
Variable winds near 5 knots. Seas 1 foot or
less. Nearshore waters smooth. Isolated showers.
FRIDAY
Variable winds 5 to 10 knots. Seas 1 foot or less.
Nearshore waters smooth to a light chop. Scattered showers and
isolated thunderstorms.
FRIDAY NIGHT
Northwest to north winds 5 to 10 knots, becoming
north to northeast. Seas 1 to 2 feet, except 2 to 3 feet west of
the Marquesas Keys due to a northwest swell. Nearshore waters
smooth to a light chop. Isolated showers and thunderstorms.
SATURDAY
East winds near 5 knots. Seas 1 to 2 feet, except
2 to 3 feet west of the Marquesas Keys. Nearshore waters smooth.
Isolated showers and thunderstorms.
SATURDAY NIGHT
East winds 5 to 10 knots. Seas 1 to 2 feet, except
2 to 3 feet west of the Marquesas Key. Nearshore waters smooth to
a light chop. Isolated showers and thunderstorms.
$$
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