GMZ005-211430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1020 PM EDT Sat Jun 20 2026
.SYNOPSIS...A broad, weak high pressure currently extending from
the central North Atlantic and across the Gulf Basin will fracture
into two cells. This will lead to a weakening pressure field
across the Florida Keys and surrounding coastal waters. As a
result, expect light and variable winds at times continuing
through Sunday night. Thereafter, the two high pressure cells will
merge and briefly build, allowing breezes to freshen slightly
Monday and Monday night. The high is then expected to weaken again
with lighter breezes returning Tuesday.
The Approximate Shoreward Edge of the Gulf Stream as of June 15...
28 NM South of Dry Tortugas Light...on Loggerhead Key.
12 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
11 NM South of Sand Key Light...off Key West.
14 NM South of Looe Key...off Big Pine Key.
13 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
4 NM Southeast of Molasses Reef Light...off Key Largo.
3 NM East of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in
Key West, using data from RTOFS and NASA SPoRT SST.
$$
GMZ033-034-211430- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1020 PM EDT Sat Jun 20 2026 OVERNIGHT East to southeast winds near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds and west 1 foot at 5 seconds. SUNDAY South winds 5 to 10 knots, becoming variable near 5 knots. Seas around 1 foot. Wave Detail: Southeast to south 1 foot at 2 seconds. SUNDAY NIGHT North to northeast winds near 5 knots, becoming east to southeast. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. MONDAY Southeast winds near 5 knots, becoming northeast to east. Seas 1 foot or less. MONDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY NIGHT East winds near 5 knots. Seas 1 foot or less. A slight chance of showers. WEDNESDAY Northeast to east winds near 5 knots. Seas 1 foot or less. A slight chance of showers. WEDNESDAY NIGHT Northeast to east winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. THURSDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. THURSDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. $$
GMZ033-034-211430- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1020 PM EDT Sat Jun 20 2026 OVERNIGHT East to southeast winds near 5 knots. Seas around 1 foot. Wave Detail: East to southeast 1 foot at 3 seconds and west 1 foot at 5 seconds. SUNDAY South winds 5 to 10 knots, becoming variable near 5 knots. Seas around 1 foot. Wave Detail: Southeast to south 1 foot at 2 seconds. SUNDAY NIGHT North to northeast winds near 5 knots, becoming east to southeast. Seas around 1 foot. Wave Detail: Northwest to north 1 foot at 4 seconds. MONDAY Southeast winds near 5 knots, becoming northeast to east. Seas 1 foot or less. MONDAY NIGHT Northeast winds 5 to 10 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. TUESDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers and thunderstorms. TUESDAY NIGHT East winds near 5 knots. Seas 1 foot or less. A slight chance of showers. WEDNESDAY Northeast to east winds near 5 knots. Seas 1 foot or less. A slight chance of showers. WEDNESDAY NIGHT Northeast to east winds near 5 knots. Seas 1 foot or less. A slight chance of showers and thunderstorms. THURSDAY East to southeast winds 5 to 10 knots. Seas around 1 foot. THURSDAY NIGHT East to southeast winds 5 to 10 knots. Seas around 1 foot. A slight chance of showers. $$