GMZ005-100245-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 1031 AM EDT Fri Oct 9 2026
 
 
 .SYNOPSIS...
 Hurricane Isaias intensified to a Category 3 hurricane. The
 hurricane is forecast to make landfall in northern Florida
 tonight. Fresh breezes were able to develop over the northwestern
 waters on the periphery of the hurricane. Elevated swells will
 persist through the Florida Straits and the outer Gulf waters
 through the first half of the weekend. Breezes are on track to
 decrease while Hurricane Isaias moves north. Meanwhile, a plume
 of moisture will move north from eastern Cuba tonight through this
 weekend. Expect an increase in shower and thunderstorm chances.
 Breezes will be able to slacken during the first half of the
 weekend.
 
 The Approximate Shoreward Edge of the Gulf Stream as of October 9,
 2026...
 
 53 NM south-southeast of Dry Tortugas Light, on Loggerhead Key
 33 NM south-southeast of Cosgrove Shoal Light, off the Marquesas Keys
 24 NM south-southeast of Sand Key Light, off Key West
 19 NM south-southeast of Looe Key, off Big Pine Key
 13 NM south-southeast of Sombrero Key Light, off Marathon
 5 NM south-southeast of Alligator Reef Light, off Islamorada
 2 NM east of Molasses Reef Light, off Key Largo
 2 NM east of Carysfort Reef Light, off Ocean Reef
 
 Gulf Stream Information Courtesy of the Naval Oceanographic
 Office.
 
 $$




 
 GMZ042-043-100245-
 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-
 1031 AM EDT Fri Oct 9 2026
 

 THIS AFTERNOON
 Southeast to south winds near 15 knots, becoming
 southeast and decreasing to 10 to 15 knots. Seas 2 to 3 feet.
 Nearshore waters a moderate chop, becoming a light to moderate
 chop. A chance of showers with a slight chance of thunderstorms.

 TONIGHT
 Southeast winds 10 to 15 knots, becoming southeast to
 south and increasing to near 15 knots. Seas 2 to 4 feet,
 occasionally to 5 feet, except 4 to 5 feet, occasionally to 6 feet
 west of Cosgrove Shoal Light. Nearshore waters a light to
 moderate chop, becoming a moderate chop. Showers likely with a
 chance of thunderstorms.

 SATURDAY
 Southeast to south winds near 15 knots, decreasing to 10
 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, except
 around 4 feet, occasionally to 5 feet west of Cosgrove Shoal
 Light. Nearshore waters a moderate chop, becoming a light to
 moderate chop. A chance of showers with a slight chance of
 thunderstorms.

 SATURDAY NIGHT
 Southeast winds 10 to 15 knots, increasing to
 near 15 knots. Seas 2 to 3 feet, except 3 to 4 feet, occasionally
 to 5 feet west of Cosgrove Shoal Light. Nearshore waters a light
 to moderate chop, becoming a moderate chop. A chance of showers
 with a slight chance of thunderstorms.

 SUNDAY
 Southeast winds 10 to 15 knots, becoming east to
 southeast and decreasing to near 10 knots. Seas 2 to 3 feet,
 subsiding to around 2 feet. Nearshore waters a light to moderate
 chop, becoming a light chop. A slight chance of showers and
 thunderstorms.

 SUNDAY NIGHT
 East winds 10 to 15 knots. Seas around 2 feet.
 Nearshore waters a light to moderate chop. A slight chance of
 showers and thunderstorms.

 MONDAY
 Northeast to east winds near 10 knots. Seas 1 to
 2 feet. Nearshore waters a light chop. A slight chance of showers
 and thunderstorms.

 MONDAY NIGHT
 Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
 Nearshore waters smooth to a light chop. A slight chance of
 showers and thunderstorms.

 TUESDAY
 North to northeast winds 10 to 15 knots, becoming
 northeast 5 to 10 knots in the afternoon. Seas 1 to 2 feet.
 Nearshore waters a light to moderate chop, becoming smooth to a
 light chop. A slight chance of showers and thunderstorms.

 TUESDAY NIGHT
 Northeast winds near 10 knots. Seas 1 to 2 feet.
 Nearshore waters a light chop. A slight chance of showers and
 thunderstorms.
 
 $$