GMZ005-040245-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1043 AM EDT Mon Aug 3 2026
.SYNOPSIS...Light to gentle breezes will continue to be in place
through Tuesday before wind speeds increase to the gentle to
moderate range for mid to late week as a southeasterly flow
patters prevails. In addition, rain chances will also be
increasing by Tuesday night as deeper moisture spreads into the
region ahead of a frontal boundary approaching northern Florida.
As chances for showers and thunderstorms increase, mariners can
expect higher winds and seas near this activity.
The Approximate Shoreward Edge of the Gulf Stream as of
July 31, 2026...
31 NM South of Dry Tortugas Light...on Loggerhead Key.
24 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
25 NM South of Sand Key Light...off Key West.
2 NM South of Looe Key...off Big Pine Key.
1 NM South of Sombrero Key Light...off Marathon.
5 NM Southeast of Alligator Reef Light...off Islamorada.
2 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, using data from RTOFS and NASA SPoRT SST.
$$
GMZ033-034-040245- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1043 AM EDT Mon Aug 3 2026 THIS AFTERNOON South winds near 10 knots, becoming southwest to west. Seas 1 to 2 feet. Wave Detail: Southeast to south 1 foot at 3 seconds and northwest 1 foot at 6 seconds. A slight chance of showers and thunderstorms. TONIGHT Southeast to south winds near 5 knots, increasing to 5 to 10 knots. Seas around 1 foot. Wave Detail: Southeast to south 1 foot at 3 seconds and west to northwest 1 foot at 6 seconds. A chance of showers with a slight chance of thunderstorms. TUESDAY South to southwest winds near 5 knots, becoming north. Seas around 1 foot. Wave Detail: South 1 foot at 3 seconds and west to northwest 1 foot at 6 seconds. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers with a slight chance of thunderstorms. WEDNESDAY East winds 5 to 10 knots, increasing to near 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. WEDNESDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. THURSDAY East winds 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. Showers likely with a chance of thunderstorms. FRIDAY East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. FRIDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet. Showers and thunderstorms likely. $$
GMZ033-034-040245- 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- 1043 AM EDT Mon Aug 3 2026 THIS AFTERNOON South winds near 10 knots, becoming southwest to west. Seas 1 to 2 feet. Wave Detail: Southeast to south 1 foot at 3 seconds and northwest 1 foot at 6 seconds. A slight chance of showers and thunderstorms. TONIGHT Southeast to south winds near 5 knots, increasing to 5 to 10 knots. Seas around 1 foot. Wave Detail: Southeast to south 1 foot at 3 seconds and west to northwest 1 foot at 6 seconds. A chance of showers with a slight chance of thunderstorms. TUESDAY South to southwest winds near 5 knots, becoming north. Seas around 1 foot. Wave Detail: South 1 foot at 3 seconds and west to northwest 1 foot at 6 seconds. A chance of showers with a slight chance of thunderstorms. TUESDAY NIGHT East winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers with a slight chance of thunderstorms. WEDNESDAY East winds 5 to 10 knots, increasing to near 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. WEDNESDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. THURSDAY East winds 10 to 15 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. THURSDAY NIGHT East winds 10 to 15 knots. Seas 2 to 3 feet. Showers likely with a chance of thunderstorms. FRIDAY East winds 10 to 15 knots. Seas 2 to 3 feet. A chance of showers and thunderstorms. FRIDAY NIGHT East winds 10 to 15 knots. Seas 1 to 2 feet. Showers and thunderstorms likely. $$