GMZ005-290930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
427 PM EST Sun Dec 28 2025
SYNOPSIS
High pressure will meander in the eastern Gulf over
the next few days, resulting in light to gentle breezes. Mainland
nocturnal land breezes may drive brief bouts of gentle to moderate
northerlies through the early morning hours. A cold front is
expected to push southeastwards across Keys waters Tuesday through
Tuesday night. This will lead to freshening northerly breezes
throughout all the Florida Keys coastal waters. While Small Craft
Advisories cannot be ruled out, they are not expected at this
time.
The Approximate Shoreward Edge of the Gulf Stream as of December
27...
18 NM South of Dry Tortugas Light...on Loggerhead Key.
11 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
12 NM South of Sand Key Light...off Key West.
12 NM South of Looe Key...off Big Pine Key.
13 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
2 NM Southeast of Molasses Reef Light...off Key Largo.
2 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.
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