Expires:202608190245;;939826
FZUS52 KKEY 181438
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1038 AM EDT Tue Aug 18 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.

The Wave Detail section highlights the period and direction of
origin for the highest-energy waves, as well as any long-period
swells moving in a different direction than the wind.


GMZ052>055-072>075-190245-
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-
1038 AM EDT Tue Aug 18 2026

.THIS AFTERNOON...Northeast to east winds near 5 knots, becoming 
northwest to north and increasing to 5 to 10 knots. Seas 1 to 2 
feet. Wave Detail: East 1 foot at 4 seconds. 
.TONIGHT...Northwest to north winds 5 to 10 knots. Seas around
1 to 2 feet. Wave Detail: East 1 foot at 3 seconds. 
.WEDNESDAY...Northwest to north winds near 5 knots. Seas around 1
foot. 
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
.THURSDAY...South to southwest winds near 5 knots, becoming west
to northwest around 5 knots. Seas around 1 foot. 
.THURSDAY NIGHT...Northeast winds 5 to 10 knots, becoming
southeast. Seas 1 to 2 feet. 
.FRIDAY...East to southeast winds near 5 knots. Seas around 1 
foot. 
.FRIDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to 2
feet. A slight chance of showers. 
.SATURDAY...East to southeast winds near 5 knots. Seas around
1 foot. 
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. A slight chance of showers and thunderstorms. 

$$