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Coastal Waters Forecast (CWF)

Issued by Key West, FL (KEY)

                            
000
FZUS52 KKEY 151425
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1025 AM EDT Sun Sep 15 2019

Florida Bay...Hawk Channel and Straits of Florida from Ocean Reef to
south of Dry Tortugas...and the extreme southeastern Gulf of
Mexico...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.

GMZ005-152030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1025 AM EDT Sun Sep 15 2019

.SYNOPSIS...A weak pressure pattern will persist across the
Florida Keys and adjacent coastal waters this afternoon. Breezes 
will turn westerly and freshen some by late. Tropical Storm 
Humberto will move northward and then northeastward over the
western North Atlantic during the next few days. An area of high
pressure will build slowly across the eastern Gulf of Mexico
through the end of the week.

The Approximate Shoreward Edge of the Gulf Stream as of September
14, 2019...

58 NM South of Dry Tortugas Light...on Loggerhead Key.
32 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
20 NM South of Sand Key Light...off Key West.
11 NM South of Looe Key...off Big Pine Key.
 9 NM South of Sombrero Key Light...off Marathon.
 3 NM Southeast of Alligator Reef Light...off Islamorada.
 1 NM Southeast of Molasses Reef Light...off Key Largo.
 4 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

$$

GMZ031-152030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1025 AM EDT Sun Sep 15 2019

.THIS AFTERNOON...Variable winds near 5 knots, becoming west and 
increasing to near 10 knots late. Bay waters smooth, becoming a
light chop late. Scattered showers and thunderstorms.
.TONIGHT AND MONDAY...West winds 10 to 15 knots. Bay waters a
light to moderate chop. Scattered showers and thunderstorms.
.MONDAY NIGHT...Northwest winds near 15 knots, decreasing to 10 to
15 knots. Bay waters a moderate chop, becoming a light to moderate
chop. Scattered showers and thunderstorms. 
.TUESDAY...Mainly north winds near 10 knots. Bay waters a light
chop. Scattered showers and thunderstorms. 
.TUESDAY NIGHT...North to northeast winds near 10 knots. Bay 
waters a light chop. Scattered showers and thunderstorms.
.WEDNESDAY AND WEDNESDAY NIGHT...Variable winds 5 to 10 knots. 
Bay waters smooth to a light chop. Scattered showers and
thunderstorms. 
.THURSDAY AND THURSDAY NIGHT...Northeast to east winds 10 to 15 
knots. Bay waters a light to moderate chop. Scattered showers and 
thunderstorms. 

$$

GMZ032-035-152030-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
1025 AM EDT Sun Sep 15 2019

.THIS AFTERNOON...Variable winds near 5 knots, becoming west and
increasing to 5 to 10 knots. Nearshore waters smooth to a light
chop. Scattered showers and thunderstorms.
.TONIGHT AND MONDAY...West winds near 10 knots. Seas around 1 
foot. Nearshore waters a light chop. Scattered showers and 
thunderstorms. 
.MONDAY NIGHT AND TUESDAY...Northwest to north winds near 10 
knots. Seas around 1 foot. Nearshore waters a light chop. 
Scattered showers and thunderstorms. 
.TUESDAY NIGHT AND WEDNESDAY...North to northeast winds near 10 
knots. Seas around 1 foot. Nearshore waters a light chop. 
Scattered showers and thunderstorms. 
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Northeast to east winds
10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to 
moderate chop. Scattered showers and thunderstorms. 

$$

GMZ042>044-152030-
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-
1025 AM EDT Sun Sep 15 2019

.THIS AFTERNOON...Variable winds near 5 knots, becoming west and 
increasing to 5 to 10 knots late. Seas around 1 foot. Nearshore 
waters smooth to a light chop. Scattered showers and 
thunderstorms.
.TONIGHT...West winds near 10 knots. Seas 1 to 2 feet. Nearshore 
waters a light chop. Scattered showers and thunderstorms. 
.MONDAY...West winds near 10 knots, increasing to 10 to 15 knots.
Seas 1 to 2 feet. Nearshore waters a light chop, becoming a light
to moderate chop. Scattered showers and thunderstorms. 
.MONDAY NIGHT...Northwest winds 10 to 15 knots. Seas 1 to 3 feet. 
Nearshore waters a light to moderate chop. Scattered showers and
thunderstorms.  
.TUESDAY...North winds near 10 knots. Seas 1 to 2 feet. Nearshore
waters a light chop. Scattered showers and thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...North to northeast winds near 10 
knots. Seas 1 to 2 feet. Nearshore waters a light chop. Scattered
showers and thunderstorms. 
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Northeast to east winds
10 to 15 knots. Seas 1 to 3 feet. Nearshore waters a light to 
moderate chop. Scattered showers and thunderstorms. 

$$

GMZ052>055-072>075-152030-
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-
1025 AM EDT Sun Sep 15 2019

.THIS AFTERNOON...Southwest to west winds 5 to 10 knots. Seas 1 
to 3 feet. Scattered showers and thunderstorms, except beyond 20 
NM offshore, isolated showers and thunderstorms.
.TONIGHT...Southwest to west winds 5 to 10 knots. Seas 1 to 2 
feet. Scattered showers and thunderstorms. 
.MONDAY...West winds near 10 knots. Seas 1 to 3 feet, except 2 to
5 feet in a northeast swell offshore of the Upper Keys. Scattered
showers and thunderstorms.
.MONDAY NIGHT...Northwest to north winds near 10 knots. Seas 1 to
3 feet, except 2 to 5 feet in a northeast swell offshore of the
Upper Keys. Scattered showers and thunderstorms.
.TUESDAY...Northwest to north winds near 10 knots. Seas 1 to 3 
feet, except 2 to 5 feet in a northeast swell offshore of the
Upper Keys. Scattered showers and thunderstorms.
.TUESDAY NIGHT AND WEDNESDAY...North to northeast winds near 10 
knots. Seas 1 to 3 feet, except 2 to 5 feet in a northeast swell.
Scattered showers and thunderstorms.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Northeast winds 10 to 
15 knots. Seas 2 to 4 feet. Scattered showers and thunderstorms.

$$

GMZ033-034-152030-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
1025 AM EDT Sun Sep 15 2019

.THIS AFTERNOON...Variable winds near 5 knots, becoming west and
increasing to 5 to 10 knots. Seas 1 to 2 feet. Scattered showers 
and thunderstorms.
.TONIGHT...West winds near 10 knots. Seas 1 to 2 feet. Scattered
showers and thunderstorms.  
.MONDAY...West to northwest winds near 10 knots. Seas 1 to 2 
feet. Scattered showers and thunderstorms. 
.MONDAY NIGHT AND TUESDAY...Northwest to north winds near 10 
knots. Seas 1 to 2 feet. Scattered showers and thunderstorms.
.TUESDAY NIGHT...North winds near 10 knots. Seas 1 to 2 feet. 
Scattered showers and thunderstorms. 
.WEDNESDAY...North to northeast winds near 10 knots. Seas 1 to 2 
feet. Scattered showers and thunderstorms. 
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Northeast winds 10 to 
15 knots. Seas 2 to 4 feet. Scattered showers and thunderstorms.

$$

Kasper