Florida Bay including Barnes Sound Blackwater Sound and Buttonwood Sound GMZ031

 
 GMZ005-120330-
 Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
 1029 AM EST Thu Dec 11 2025
 
 
 .SYNOPSIS...As high pressure drifts eastward over the next
 several days and eventually into the western North Atlantic, winds
 will clock around to the north to northeast, then eventually
 northeast to east. The next frontal boundary is progged to push
 through the Florida Keys marine zones on Sunday night, with fresh
 to strong northeasterly breezes expected in the wake of the
 frontal passage for early next week.
 
 The Approximate Shoreward Edge of the Gulf Stream as of December 8...
 
 15 NM South of Dry Tortugas Light...on Loggerhead Key.
 13 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
 14 NM South of Sand Key Light...off Key West.
 18 NM South of Looe Key...off Big Pine Key.
 23 NM Southeast of Sombrero Key Light...off Marathon.
 18 NM Southeast of Alligator Reef Light...off Islamorada.
 12 NM Southeast of Molasses Reef Light...off Key Largo.
 8 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 and RTOFS.
 
 $$



 
 GMZ031-120330-
 Florida Bay including Barnes Sound, Blackwater Sound, and
 Buttonwood Sound-
 1029 AM EST Thu Dec 11 2025
 

 THIS AFTERNOON
 North winds near 10 knots. Bay waters a light
 chop.

 TONIGHT
 North to northeast winds near 10 knots. Bay waters
 a light chop.

 FRIDAY
 Northeast to east winds near 10 knots. Bay waters a
 light chop.

 FRIDAY NIGHT
 Northeast to east winds near 10 knots. Bay waters
 a light chop.

 SATURDAY
 East winds 10 to 15 knots. Bay waters a light to
 moderate chop. Isolated showers.

 SATURDAY NIGHT
 East winds 10 to 15 knots, becoming northeast.
 Bay waters a light to moderate chop. Scattered showers.

 SUNDAY
 Northwest winds near 10 knots, becoming north. Bay
 waters a light chop. Scattered showers.

 SUNDAY NIGHT
 North to northeast winds 10 to 15 knots,
 increasing to 15 to 20 knots. Bay waters a light to moderate
 chop, becoming choppy. Isolated showers.

 MONDAY AND MONDAY NIGHT
 Northeast winds 15 to 20 knots. Bay
 waters choppy. Isolated showers.
 
 $$