Hazardous marine condition(s):
Short Term Forecast
GMZ005-230230-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1030 AM EDT Wed Jul 22 2026
.SYNOPSIS...As of 8 AM EDT, Tropical Storm Bertha was centered
over the northern Gulf waters. Bertha is expected to continue
moving slowly to the west-northwest or west tonight through
Friday, moving Tropical Storm Bertha near or along the northern
Gulf coast. Otherwise, an Atlantic ridge of high pressure will
extend to the Florida Peninsula for the next several days. Gentle
breezes will briefly become moderate overnight through early
Thursday, then gradually slacken to light to gentle breezes by
Friday, peaking overnight and lull during the day. Light winds are
expected this weekend.
The Approximate Shoreward Edge of the Gulf Stream as of July 17,
2026...
49 NM South of Dry Tortugas Light...on Loggerhead Key.
51 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
38 NM South of Sand Key Light...off Key West.
22 NM South of Looe Key...off Big Pine Key.
13 NM South of Sombrero Key Light...off Marathon.
6 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.
$$
GMZ033-034-230230- Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM out and beyond 5 fathoms- Gulf of America including Dry Tortugas and Rebecca Shoal Channel- 1030 AM EDT Wed Jul 22 2026 THIS AFTERNOON Southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and west 2 feet at 7 seconds. A slight chance of showers and thunderstorms. TONIGHT East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 3 seconds and west 2 feet at 7 seconds. A slight chance of showers and thunderstorms. THURSDAY East winds near 10 knots, decreasing to 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds and west 2 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. FRIDAY East winds near 10 knots, briefly decreasing to 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. FRIDAY NIGHT East to southeast winds near 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. SATURDAY Southeast to south winds 5 to 10 knots, becoming south to southwest near 5 knots. Seas 1 to 2 feet, subsiding to around 1 foot. A slight chance of showers and thunderstorms. SATURDAY NIGHT Variable winds near 5 knots. Seas around 1 foot. A slight chance of showers. SUNDAY Southwest to west winds near 5 knots, becoming west to northwest 5 to 10 knots. Seas around 1 foot. A slight chance of showers. SUNDAY NIGHT West to northwest winds 5 to 10 knots. Seas around 1 foot. A chance of thunderstorms with a slight chance of showers. $$
GMZ033-034-230230- 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- 1030 AM EDT Wed Jul 22 2026 THIS AFTERNOON Southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet. Wave Detail: Southeast 2 feet at 4 seconds and west 2 feet at 7 seconds. A slight chance of showers and thunderstorms. TONIGHT East to southeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 3 feet. Wave Detail: East to southeast 2 feet at 3 seconds and west 2 feet at 7 seconds. A slight chance of showers and thunderstorms. THURSDAY East winds near 10 knots, decreasing to 5 to 10 knots. Seas around 2 feet. Wave Detail: East 2 feet at 4 seconds and west 2 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms. THURSDAY NIGHT Northeast to east winds 5 to 10 knots, increasing to near 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. FRIDAY East winds near 10 knots, briefly decreasing to 5 to 10 knots. Seas around 2 feet. A chance of showers and thunderstorms. FRIDAY NIGHT East to southeast winds near 10 knots. Seas around 2 feet. A slight chance of showers and thunderstorms. SATURDAY Southeast to south winds 5 to 10 knots, becoming south to southwest near 5 knots. Seas 1 to 2 feet, subsiding to around 1 foot. A slight chance of showers and thunderstorms. SATURDAY NIGHT Variable winds near 5 knots. Seas around 1 foot. A slight chance of showers. SUNDAY Southwest to west winds near 5 knots, becoming west to northwest 5 to 10 knots. Seas around 1 foot. A slight chance of showers. SUNDAY NIGHT West to northwest winds 5 to 10 knots. Seas around 1 foot. A chance of thunderstorms with a slight chance of showers. $$