FZUS52 KKEY 261356

CWFKEY



Coastal Waters Forecast for the Florida Keys

National Weather Service Key West FL

956 AM EDT Thu Jun 26 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.



GMZ005-270200-

Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas

956 AM EDT Thu Jun 26 2025



.SYNOPSIS...An upper level low near the East Coast of Florida 

will lift northward and weaken by Friday. Until it does, enhanced 

rain and thunder chances are expected across the Keys marine 

zones. Broad surface ridging will rebuild over the Atlantic and 

support gentle to moderate east to southeasterly breezes across 

Florida Keys waters. A Saharan Air Layer will limit shower 

coverage over the weekend, but bursts of showers or thunderstorms 

cannot be ruled out.



The Approximate Shoreward Edge of the Gulf Stream as of June 22...



16 NM Southwest of Dry Tortugas Light...on Loggerhead Key. 

21 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 

28 NM South of Sand Key Light...off Key West. 

36 NM South of Looe Key...off Big Pine Key.

22 NM South of Sombrero Key Light...off Marathon.

12 NM Southeast of Alligator Reef Light...off Islamorada.

 6 NM Southeast of Molasses Reef Light...off Key Largo.

 3 NM East 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.



$$



GMZ031-270200-

Florida Bay including Barnes Sound, Blackwater Sound, and

Buttonwood Sound-

956 AM EDT Thu Jun 26 2025



.THIS AFTERNOON...Southeast winds 5 to 10 knots. Bay waters 

smooth to a light chop. Winds higher and bay waters rough in 

numerous showers and scattered thunderstorms. 

.TONIGHT...Southeast winds 5 to 10 knots. Bay waters smooth to a

light chop. Scattered showers and isolated thunderstorms. 

.FRIDAY...East to southeast winds near 10 knots. Bay waters a 

light chop. Scattered showers and isolated thunderstorms. 

.FRIDAY NIGHT...East to southeast winds near 10 knots. Bay waters 

a light chop. Isolated showers and thunderstorms. 

.SATURDAY...East to southeast winds near 10 knots. Bay waters a 

light chop. Scattered showers and isolated thunderstorms. 

.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Bay 

waters smooth to a light chop. Isolated showers and thunderstorms.

.SUNDAY THROUGH MONDAY NIGHT...East to southeast winds near 10 

knots. Bay waters a light chop. Scattered showers and isolated 

thunderstorms.



$$



GMZ032-035-270200-

Bayside and Gulfside from Craig Key to west end of Seven Mile

Bridge-

Gulf of America from west end of Seven Mile Bridge to Halfmoon

Shoal out to 5 Fathoms-

956 AM EDT Thu Jun 26 2025



.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas around 1 

foot. Nearshore waters smooth to a light chop. Winds and seas

higher in numerous showers and scattered thunderstorms. 

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 1 foot. 

Nearshore waters smooth to a light chop. Scattered showers and 

isolated thunderstorms. 

.FRIDAY...East to southeast winds near 10 knots. Seas around 1

foot. Nearshore waters a light chop. Scattered showers and 

isolated thunderstorms. 

.FRIDAY NIGHT...East to southeast winds near 10 knots. Seas

around 1 foot, except 1 to 2 feet west of the Marquesas Keys. 

Nearshore waters a light chop. Isolated showers and thunderstorms.

.SATURDAY...East to southeast winds near 10 knots. Seas around 1

foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore 

waters a light chop. Scattered showers and isolated thunderstorms.

.SATURDAY NIGHT...East to southeast winds near 10 knots. Seas around 1

foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore 

waters a light chop. Isolated showers and thunderstorms.

.SUNDAY...East to southeast winds near 10 knots. Seas around 1

foot, except 1 to 2 feet west of the Marquesas Keys. Nearshore 

waters a light chop. Scattered showers and isolated thunderstorms.

.SUNDAY NIGHT THROUGH MONDAY NIGHT...East to southeast winds near

10 knots. Seas around 1 foot. Nearshore waters a light chop. 

Scattered showers and isolated thunderstorms. 



$$



GMZ042>044-270200-

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-

Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal

out to the reef-

956 AM EDT Thu Jun 26 2025



.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 to 2 feet.

Nearshore waters smooth to a light chop. Winds and seas higher in

numerous showers and scattered thunderstorms. 

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 1 foot.

Nearshore waters smooth to a light chop. Scattered showers and

isolated thunderstorms. 

.FRIDAY...East to southeast winds near 10 knots. Seas 1 to

2 feet. Nearshore waters a light chop. Scattered showers and

isolated thunderstorms. 

.FRIDAY NIGHT AND SATURDAY...East to southeast winds near 10 

knots. Seas 1 to 2 feet. Nearshore waters a light chop. Isolated 

showers and thunderstorms. 

.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 1 

to 2 feet. Nearshore waters a light to moderate chop. Isolated 

showers and thunderstorms. 

.SUNDAY...East to southeast winds near 10 knots. Seas 1 to 2 

feet. Nearshore waters a light chop. Scattered showers and 

isolated thunderstorms. 

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 1 to 2 feet.

Nearshore waters a light to moderate chop. Scattered showers and

isolated thunderstorms. 

.MONDAY AND MONDAY NIGHT...East to southeast winds near 10 knots.

Seas 1 to 2 feet. Nearshore waters a light chop. Scattered 

showers and isolated thunderstorms. 



$$



GMZ052>055-072>075-270200-

Straits of Florida from Ocean Reef to Craig Key out 20 NM-

Straits of Florida from Craig Key to west end of Seven Mile

Bridge out 20 NM-

Straits of Florida from west end of Seven Mile Bridge to south of

Halfmoon Shoal out 20 NM-

Straits of Florida from Halfmoon Shoal to 20 NM west of Dry

Tortugas out 20 NM-

Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-

Straits of Florida from Craig Key to west end of Seven Mile

Bridge 20 to 60 NM out-

Straits of Florida from west end of Seven Mile Bridge to south of

Halfmoon Shoal 20 to 60 NM out-

Straits of Florida from Halfmoon Shoal to 20 NM west of Dry

Tortugas 20 to 60 NM out-

956 AM EDT Thu Jun 26 2025



.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas around 2

feet. Wave Detail: East 2 feet at 5 seconds. Winds and seas higher 

in numerous showers and scattered thunderstorms. 

.TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 to

2 feet. Wave Detail: East to southeast 2 feet at 4 seconds.

Scattered showers and isolated thunderstorms. 

.FRIDAY...East to southeast winds near 10 knots. Seas around 2

feet, building to 2 to 3 feet. Wave Detail: East 3 feet at 4 

seconds. Scattered showers and isolated thunderstorms. 

.FRIDAY NIGHT AND SATURDAY...East to southeast winds 10 to 15 

knots. Seas 2 to 3 feet. Isolated showers and thunderstorms. 

.SATURDAY NIGHT...East to southeast winds 10 to 15 knots. Seas 2 

to 4 feet, occasionally to 5 feet. Isolated showers and 

thunderstorms.

.SUNDAY...East to southeast winds 10 to 15 knots. Seas 2 to 4 

feet, occasionally to 5 feet. Isolated showers and thunderstorms.

.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet,

occasionally to 5 feet. Isolated showers and thunderstorms. 

.MONDAY AND MONDAY NIGHT...East to southeast winds 10 to 15 

knots. Seas 2 to 3 feet. Scattered showers and isolated 

thunderstorms. 



$$



GMZ033-034-270200-

Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM

out and beyond 5 fathoms-

Gulf of America including Dry Tortugas and Rebecca Shoal Channel-

956 AM EDT Thu Jun 26 2025



.THIS AFTERNOON...Southeast winds 5 to 10 knots. Seas 1 to 2 

feet. Wave Detail: East 1 foot at 4 seconds. Winds and seas 

higher in numerous showers and scattered thunderstorms. 

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 1 foot.

Wave Detail: Southeast 1 foot at 3 seconds. Scattered showers and

isolated thunderstorms. 

.FRIDAY...East to southeast winds 5 to 10 knots. Seas around

1 foot. Wave Detail: East to southeast 1 foot at 3 seconds.

Scattered showers and isolated thunderstorms. 

.FRIDAY NIGHT AND SATURDAY...East to southeast winds near 10 

knots. Seas 1 to 2 feet. Isolated showers and thunderstorms. 

.SATURDAY NIGHT...East to southeast winds near 10 knots. Seas 1 

to 2 feet. Isolated showers and thunderstorms. 

.SUNDAY THROUGH MONDAY NIGHT...East to southeast winds near 10 

knots. Seas 1 to 2 feet. Scattered showers and isolated 

thunderstorms. 



$$



BT

