Florida Keys Marine Forecast Interactive Clickable Zone Map

Marine forecast zone from the state of Florida, Florida Keys NOAA office which includes the Gulf of America, Atlantic, coastal waters, bays and offshore. Marine forecast areas included are Key Largo, Tavernier, Islamorada, Layton, Matecumbe Key, Conch Key, Duck Key, Grass Key, Marathon, Big Pine Key, Cudjoe Key, Ramrod Key, Little Torch Key, Summerland Key, Big Coppitt Key, Rockland Key, Sugarloaf Key, Stock Island, Key West and the Dry Tortugas

Florida Keys Marine Zone Map

Click highlighted zone for marine zone link

Marine Weather Warnings Map

Click highlighted zone for warning details

Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas

Expires:202512140930;;531476
FZUS52 KKEY 132128
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
428 PM EST Sat Dec 13 2025

Florida Bay, Hawk Channel and Straits of Florida from Ocean Reef
to south of Dry Tortugas, and the extreme southeastern Gulf of
America, including The Florida Keys National Marine Sanctuary

Seas are given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

Wave Detail will include details about the period and direction
of origin for the highest energy waves. Long-period swells coming
from a different direction than the wind would be included in the
Wave Detail.


GMZ005-140930-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
428 PM EST Sat Dec 13 2025

.SYNOPSIS...Gentle to moderate breezes will gradually slacken 
through the overnight ahead of the next frontal passage. The next
front is progged to push through the Florida Keys marine zones 
Sunday evening. Ahead of the front, elevated chances for showers 
and thunderstorms will be possible tonight through early Sunday. 
In the wake of the frontal passage, fresh to strong northeasterly 
breezes are expected Sunday night through at least Tuesday.
Breezes slacken starting Wednesday but will remain gentle to
moderate at times.

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.

$$


Coastal marine forecasts from NOAA National Weather Service. Marine forecasts are issued at least four times a day. Advisories, watches and warnings for marine areas are issued as required. Internet forecasts should never be relied upon to obtain the latest forecast and warning data. Use other means such as NOAA Weather Radio to obtain the latest forecasts and warnings.

For more marine forecast information for the Florida Keys zone visit the following office website:

NOAA Florida Keys Marine Office website