Hazardous marine condition(s):
Short Term Forecast
GMZ005-031430-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1020 PM EDT Tue Sep 2 2025
.SYNOPSIS...A broad surface low along a stationary front
stretching from the Gulf eastward to the Florida Peninsula will
maintain west to northwest winds across the Keys marine zones
tonight. The low and front will remain rooted in place through
the next few days, with undulating winds varying between northwest
and southwest. Abundant moisture will promote above normal rain
and thunder chances through the end of the work week.
The Approximate Shoreward Edge of the Gulf Stream as of September 1...
41 NM South of Dry Tortugas Light...on Loggerhead Key.
30 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
9 NM South of Sand Key Light...off Key West.
8 NM South of Looe Key...off Big Pine Key.
7 NM Southeast of Sombrero Key Light...off Marathon.
6 NM Southeast of Alligator Reef Light...off Islamorada.
4 NM Southeast of Molasses Reef Light...off Key Largo.
4 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.
$$
GMZ042>044-031430- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1020 PM EDT Tue Sep 2 2025 OVERNIGHT West to northwest winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Winds and seas higher in and near numerous showers and scattered thunderstorms. WEDNESDAY West winds near 10 knots, becoming southwest to west 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Widespread showers and scattered thunderstorms. WEDNESDAY NIGHT West winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Widespread showers and scattered thunderstorms. THURSDAY Southwest to west winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 2 feet, building to around 2 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Widespread showers and scattered thunderstorms. THURSDAY NIGHT Southwest to west winds near 15 knots, decreasing to 10 to 15 knots. Seas subsiding to 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Widespread showers and scattered thunderstorms. FRIDAY Southwest to west winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Widespread showers and scattered thunderstorms. FRIDAY NIGHT Southwest winds decreasing to near 10 knots. Seas 1 to 2 feet. Nearshore waters becoming a light chop. Scattered showers and thunderstorms. SATURDAY Southwest winds decreasing to 5 to 10 knots. Seas around 1 foot. Nearshore waters becoming smooth to a light chop. Scattered showers and thunderstorms. SATURDAY NIGHT South to southwest winds 5 to 10 knots, becoming east to southeast. Seas around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and thunderstorms. SUNDAY East to southeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Scattered showers and thunderstorms. SUNDAY NIGHT East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Scattered showers and thunderstorms. $$
GMZ042>044-031430- Hawk Channel from Ocean Reef to Craig Key out to the reef- Hawk Channel from Craig Key to west end of Seven Mile Bridge out to the reef- Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef- 1020 PM EDT Tue Sep 2 2025 OVERNIGHT West to northwest winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop. Winds and seas higher in and near numerous showers and scattered thunderstorms. WEDNESDAY West winds near 10 knots, becoming southwest to west 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light to moderate chop. Widespread showers and scattered thunderstorms. WEDNESDAY NIGHT West winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Widespread showers and scattered thunderstorms. THURSDAY Southwest to west winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 2 feet, building to around 2 feet. Nearshore waters a light to moderate chop, becoming a moderate chop. Widespread showers and scattered thunderstorms. THURSDAY NIGHT Southwest to west winds near 15 knots, decreasing to 10 to 15 knots. Seas subsiding to 1 to 2 feet. Nearshore waters a moderate chop, becoming a light to moderate chop. Widespread showers and scattered thunderstorms. FRIDAY Southwest to west winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Widespread showers and scattered thunderstorms. FRIDAY NIGHT Southwest winds decreasing to near 10 knots. Seas 1 to 2 feet. Nearshore waters becoming a light chop. Scattered showers and thunderstorms. SATURDAY Southwest winds decreasing to 5 to 10 knots. Seas around 1 foot. Nearshore waters becoming smooth to a light chop. Scattered showers and thunderstorms. SATURDAY NIGHT South to southwest winds 5 to 10 knots, becoming east to southeast. Seas around 1 foot. Nearshore waters smooth to a light chop. Scattered showers and thunderstorms. SUNDAY East to southeast winds near 10 knots. Seas around 1 foot. Nearshore waters a light chop. Scattered showers and thunderstorms. SUNDAY NIGHT East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop. Scattered showers and thunderstorms. $$