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:202603292030;;476241
FZUS52 KKEY 290825
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
425 AM EDT Sun Mar 29 2026

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.


GMZ005-292030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
425 AM EDT Sun Mar 29 2026

.SYNOPSIS...A frontal boundary is currently draped from just north
of the Bahamas through central Florida and across the Gulf to 
Mexico. This front will continue to slowly drift southward today 
resulting in freshening northeast to east breezes. In the wake of 
the front, strong Canadian high pressure will traverse across the 
Mid-Atlantic today and tonight. This high will continue to move 
eastward and setup shop across the central North Atlantic for much
of the week. This will promote mainly fresh to strong easterly 
breezes through at mid-late week.

The Approximate Shoreward Edge of the Gulf Stream as of March 28... 

26 NM South of Dry Tortugas Light...on Loggerhead Key.  
38 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
36 NM South of Sand Key Light...off Key West.
24 NM South of Looe Key...off Big Pine Key.
20 NM Southeast of Sombrero Key Light...off Marathon.
15 NM Southeast of Alligator Reef Light...off Islamorada.
 7 NM Southeast of Molasses Reef Light...off Key Largo.  
 3 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