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Bayou Bonfouca, LA - Route 433 Coastal Forecast

FZUS52 KKEY 130849 CCA
CWFKEY

Coastal Waters Forecast for the Florida Keys...CORRECTED
National Weather Service Key West FL
449 AM EDT Fri Mar 13 2026

Corrected for latest wave detail in the Straits of Florida and SE
Gulf for today, tonight, and Saturday periods.

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.

GMZ005-132030-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
449 AM EDT Fri Mar 13 2026

.SYNOPSIS...Generally weak and nebulous flow will result in
varying breezes today. High pressure will slowly build back into
the region tonight continuing through the weekend. This will lead
to freshening mainly southeast breezes as a result. Another more
significant frontal system will begin to make its way towards the
Keys early next week. This will lead to southeast breezes clocking
around the compass becoming northwest to north early next week
while also freshening.

The Approximate Shoreward Edge of the Gulf Stream as of March 7...

55 NM South of Dry Tortugas Light...on Loggerhead Key.
15 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
7 NM South of Sand Key Light...off Key West.
8 NM South of Looe Key...off Big Pine Key.
10 NM Southeast of Sombrero Key Light...off Marathon.
8 NM Southeast of Alligator Reef Light...off Islamorada.
5 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.

$$

GMZ031-132030-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
449 AM EDT Fri Mar 13 2026

.TODAY...Variable winds near 5 knots, becoming southeast to
south. Bay waters smooth. A chance of showers with a slight chance
of thunderstorms.
.TONIGHT...Southeast winds near 5 knots. Bay waters smooth. A
chance of showers with a slight chance of thunderstorms.
.SATURDAY...Southeast winds 5 to 10 knots. Bay waters smooth to a
light chop. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots, becoming
southeast 10 to 15 knots after midnight. Bay waters smooth to a
light chop, becoming a light to moderate chop. A chance of showers
with a slight chance of thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Bay waters a light to
moderate chop. Showers likely with a slight chance of
thunderstorms.
.SUNDAY NIGHT...East to southeast 10 to 15 knots, becoming
southeast to south and increasing to near 15 knots. Bay waters a
light to moderate chop, becoming a moderate chop. A chance of
showers with a slight chance of thunderstorms.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest and decreasing to 10 to 15 knots. Bay waters a
moderate chop, becoming a light to moderate chop. Showers likely
with a slight chance of thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Bay waters a
light to moderate chop. Showers likely with a chance of
thunderstorms.
.TUESDAY...Northwest winds near 15 knots, becoming north 10 to 15
knots in the afternoon. Bay waters a moderate chop, becoming a
light to moderate chop. A chance of showers and thunderstorms.
.TUESDAY NIGHT...North to northeast winds 15 to 20 knots. Bay
waters choppy. A chance of showers with a slight chance of
thunderstorms.

$$

GMZ032-035-132030-
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-
449 AM EDT Fri Mar 13 2026

.TODAY...Variable winds near 5 knots, becoming southeast to south
this afternoon. Seas 1 foot or less, except building to around 2
feet west of the Marquesas Keys due to northwest swell. Nearshore
waters smooth. A slight chance of showers and thunderstorms.
.TONIGHT...East to southeast winds near 5 knots. Seas 1 to
2 feet, except 2 to 3 feet west of the Marquesas Keys due to
northwest swell. Nearshore waters smooth. A chance of showers with
a slight chance of thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 foot or
less, except 1 to 2 feet west of the Marquesas Keys. Nearshore
waters smooth to a light chop. A chance of showers with a slight
chance of thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots, becoming
southeast and increasing to 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters smooth to a light chop, becoming a light to
moderate chop. A chance of showers with a slight chance of
thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet, except
around 2 feet west of the Marquesas Keys. Nearshore waters a
light to moderate chop. Showers likely with a slight chance of
thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming southeast
to south. Seas 1 to 2 feet, except around 2 feet west of the
Marquesas Keys. Nearshore waters a light to moderate chop. A
chance of showers with a slight chance of thunderstorms.
.MONDAY...Southeast to south winds 10 to 15 knots, becoming south
to southwest. Seas 1 to 2 feet, except around 2 feet west of the
Marquesas Keys. Nearshore waters a light to moderate chop. Showers
likely with a slight chance of thunderstorms.
.MONDAY NIGHT...Southwest winds near 10 knots, becoming west and
increasing to near 15 knots after midnight. Seas 1 to 2 feet,
except building to 2 to 3 feet west of the Marquesas Keys.
Nearshore waters a light chop, becoming a moderate chop. A chance
of thunderstorms. Showers likely.
.TUESDAY...Northwest to north winds 15 to 20 knots. Seas 3 to
5 feet, occasionally to 6 feet. West of the Marquesas Keys, seas
3 to 5 feet, occasionally to 6 feet, building to 6 to 7 feet,
occasionally to 9 feet in the afternoon. Nearshore waters choppy.
A chance of showers and thunderstorms.
.TUESDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet, except 5 to 7 feet,
occasionally to 9 feet west of the Marquesas Keys. Nearshore
waters choppy. A chance of showers with a slight chance of
thunderstorms.

$$

GMZ042>044-132030-
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-
449 AM EDT Fri Mar 13 2026

.TODAY...Variable winds near 5 knots, becoming southeast to south
this afternoon. Seas 1 foot or less, except building to 1 to 2
feet west of Cosgrove Shoal Light due to northwest swell.
Nearshore waters smooth. A slight chance of showers and
thunderstorms.
.TONIGHT...East to southeast winds near 5 knots. Seas 1 foot or
less, except 2 to 3 feet west of Cosgrove Shoal Light due to
northwest swell. Nearshore waters smooth. A chance of showers with
a slight chance of thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to 2
feet. Nearshore waters smooth to a light chop. A chance of
showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots, becoming
southeast 10 to 15 knots after midnight. Seas 1 to 2 feet,
building to around 2 feet. Nearshore waters smooth to a light
chop, becoming a light to moderate chop. A chance of showers with
a slight chance of thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop. Showers likely with a
slight chance of thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots, becoming southeast
to south and increasing to near 15 knots. Seas 2 to 3 feet.
Nearshore waters a light to moderate chop, becoming a moderate
chop. A chance of showers with a slight chance of thunderstorms.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest and decreasing to 10 to 15 knots. Seas 2 to 3 feet.
Nearshore waters a moderate chop, becoming a light to moderate
chop. A chance of showers with a slight chance of thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots, increasing to near
15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate
chop, becoming a moderate chop. Showers likely with a chance of
thunderstorms.
.TUESDAY...Northwest to north winds 15 to 20 knots. Seas 2 to
4 feet, occasionally to 5 feet. West of Cosgrove Shoal Light,
seas 3 to 4 feet, occasionally to 5 feet, building to 5 to 7 feet,
occasionally to 9 feet in the afternoon. Nearshore waters choppy.
A chance of showers with a slight chance of thunderstorms.
.TUESDAY NIGHT...North to northeast winds 15 to 20 knots. Seas
4 to 6 feet, occasionally to 8 feet, except 5 to 7 feet,
occasionally to 9 feet west of Cosgrove Shoal Light. Nearshore
waters choppy. A chance of showers with a slight chance of
thunderstorms.

$$

GMZ052>055-072>075-132030-
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-
449 AM EDT Fri Mar 13 2026

.TODAY...Variable winds near 5 knots, becoming east to southeast
this afternoon. Seas 1 to 2 feet, except building to 2 to 3 feet
west of Halfmoon Shoal Light due to northwest swell. Wave Detail:
East 1 foot at 4 seconds. A slight chance of showers and
thunderstorms.
.TONIGHT...East to southeast winds 5 to 10 knots. Seas 1 to 3 feet.
Wave Detail: East to southeast 2 feet at 4 seconds and west to
northwest 2 feet at 7 seconds. A chance of showers with a slight
chance of thunderstorms.
.SATURDAY...East to southeast winds 5 to 10 knots. Seas 1 to
2 feet. Wave Detail: East to southeast 2 feet at 5 seconds and west
to northwest 2 feet at 7 seconds. A chance of showers with a slight
chance of thunderstorms.
.SATURDAY NIGHT...East to southeast winds near 10 knots,
increasing to 10 to 15 knots. Seas 1 to 2 feet, building to 2 to
3 feet. A chance of showers with a slight chance of thunderstorms.
.SUNDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. A
chance of showers with a slight chance of thunderstorms.
.SUNDAY NIGHT...Southeast winds near 15 knots, becoming southeast
to south and increasing to 15 to 20 knots. Seas 2 to 3 feet,
building to 2 to 4 feet, occasionally to 5 feet. A chance of
showers with a slight chance of thunderstorms.
.MONDAY...Southeast to south winds near 15 knots, becoming south
to southwest and decreasing to 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet, subsiding to around 2 feet. A chance of
showers with a slight chance of thunderstorms.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Seas 1 to 2 feet.
Showers likely with a chance of thunderstorms.
.TUESDAY...Northwest winds 15 to 20 knots, becoming north 20 to
25 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5
feet, building to 4 to 6 feet, occasionally to 8 feet in the
afternoon. A chance of showers and thunderstorms.
.TUESDAY NIGHT...North to northeast winds 20 to 25 knots. Seas
5 to 7 feet, occasionally to 9 feet. A slight chance of
thunderstorms. A chance of showers.

$$

GMZ033-034-132030-
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-
449 AM EDT Fri Mar 13 2026

.TODAY...North to northeast winds 10 to 15 knots, becoming
southeast and decreasing to near 5 knots this afternoon. Seas 2 to 3
feet due to northwest swell. Wave Detail: Northwest 3 feet at 7
seconds and southeast to south 1 foot at 3 seconds. A slight chance
of showers and thunderstorms.
.TONIGHT...East winds near 5 knots. Seas 2 to 4 feet,
occasionally to 5 feet due to northwest swell. Wave Detail:
Northwest 3 feet at 7 seconds. A chance of showers with a slight
chance of thunderstorms.
.SATURDAY...East to southeast winds near 5 knots. Seas subsiding
to 1 to 2 feet. Wave Detail: Northwest 2 feet at 7 seconds. A chance
of showers with a slight chance of thunderstorms.
.SATURDAY NIGHT...East to southeast winds 5 to 10 knots,
increasing to near 10 knots. Seas 1 to 2 feet. A chance of
showers with a slight chance of thunderstorms.
.SUNDAY...Southeast winds near 10 knots. Seas around 2 feet.
Showers likely with a slight chance of thunderstorms.
.SUNDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet.
A chance of showers with a slight chance of thunderstorms.
.MONDAY...Southeast to south winds 10 to 15 knots, becoming south
to southwest. Seas 2 to 3 feet. Showers likely with a slight
chance of thunderstorms.
.MONDAY NIGHT...Southwest winds near 10 knots, becoming west to
northwest 15 to 20 knots after midnight. Seas 2 to 4 feet,
occasionally to 5 feet. A chance of thunderstorms. A chance of
showers.
.TUESDAY...North winds 20 to 25 knots. Seas 4 to 6 feet,
occasionally to 8 feet, building to 5 to 8 feet, occasionally to
10 feet in the afternoon. A chance of showers with a slight chance
of thunderstorms.
.TUESDAY NIGHT...North to northeast winds 20 to 25 knots. Seas
5 to 8 feet, occasionally to 10 feet. A slight chance of showers
and thunderstorms.

$$

MJV


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