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National Weather Service Marine Forecast FZUS52 KKEY

FZUS52 KKEY 250224
CWFKEY

Coastal Waters Forecast for the Florida Keys
National Weather Service Key West FL
1024 PM EDT Sun Mar 24 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.

GMZ005-250830-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1024 PM EDT Sun Mar 24 2019

SYNOPSIS
Fresh easterly breezes this evening will ease
overnight, as a high pressure ridge starts to nudge from the
Western Atlantic across North Florida. This ridge axis will then
push south down the Florida Peninsula on Monday. Thereafter, a
weakening cold front will approach the Florida Keys on Tuesday. A
strong high pressure system will build over the eastern United
States on Wednesday and Thursday, leading to fresh and
occasionally strong north to northeast breezes across Keys coastal
waters later this week.

The Approximate Shoreward Edge of the Gulf Stream as of
March 23...

63 NM South of Dry Tortugas Light...on Loggerhead Key.
45 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
35 NM South of Sand Key Light...off Key West.
 6 NM South of Looe Key...off Big Pine Key.
 5 NM South of Sombrero Key Light...off Marathon.
 1 NM Southeast of Alligator Reef Light...off Islamorada.
 1 NM Southeast of Molasses Reef Light...off Key Largo.
 1 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.



GMZ031-250830-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1024 PM EDT Sun Mar 24 2019

OVERNIGHT
Northeast to east winds 10 to 15 knots. Bay waters a
light to moderate chop. Isolated showers.

MONDAY
East to southeast winds decreasing to 5 to 10 knots.
Bay waters smooth to a light chop. Isolated showers.

MONDAY NIGHT
Northeast to east winds near 5 knots becoming
northwest to north in the late evening and overnight. Bay waters
smooth to a light chop. Isolated showers.

TUESDAY
North winds near 10 knots becoming west to northwest
in the late morning and afternoon. Bay waters a light to moderate
chop.

TUESDAY NIGHT
Northwest to north winds 10 to 15 knots. Bay
waters a light to moderate chop.

WEDNESDAY
Northwest to north winds 15 to 20 knots. Bay waters
choppy.

WEDNESDAY NIGHT
North to northeast winds 15 to 20 knots. Bay
waters choppy. Isolated showers.

THURSDAY
Northeast winds 15 to 20 knots. Bay waters choppy.

THURSDAY NIGHT
Northeast winds 15 to 20 knots. Bay waters
choppy. Isolated showers.

FRIDAY
Northeast to east winds 15 to 20 knots. Bay waters
choppy. Isolated showers.

FRIDAY NIGHT
East winds near 15 knots. Bay waters a moderate
chop. Isolated showers.



GMZ032-035-250830-
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-
1024 PM EDT Sun Mar 24 2019

SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE


OVERNIGHT
East winds 15 to 20 knots, becoming northeast to
east 10 to 15 knots overnight. Seas 1 to 2 feet. Nearshore waters
choppy for the rest of this evening, becoming a light to moderate
chop. Isolated showers.

MONDAY
East winds 10 to 15 knots, becoming northeast to east
and decreasing to near 10 knots. Seas 1 to 2 feet. Nearshore
waters a light to moderate chop, becoming a light chop. Isolated
showers.

MONDAY NIGHT
North winds 10 to 15 knots. Seas 1 to 2 feet.
Nearshore waters a light to moderate chop.

TUESDAY
Northwest to north winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop.

TUESDAY NIGHT
Northwest to north winds near 15 knots. Seas
1 to 3 feet. Nearshore waters a moderate chop. Isolated showers.

WEDNESDAY
Northwest to north winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy.

WEDNESDAY NIGHT
North to northeast winds 20 to 25 knots. Seas
2 to 5 feet, except 5 to 7 feet west of the Marquesas Keys.
Nearshore waters very rough.

THURSDAY
Northeast winds 15 to 20 knots. Seas 2 to 5 feet
subsiding to 1 to 3 feet in the afternoon. West of the Marquesas
Keys, seas 4 to 6 feet. Nearshore waters choppy.

THURSDAY NIGHT
Northeast winds 15 to 20 knots. Seas 1 to
3 feet, except 3 to 5 feet west of the Marquesas Keys. Nearshore
waters choppy. Isolated showers.

FRIDAY
East winds 15 to 20 knots. Seas 1 to 3 feet. Nearshore
waters choppy. Isolated showers.

FRIDAY NIGHT
East winds 15 to 20 knots. Seas 1 to 2 feet.
Nearshore waters choppy. Isolated showers.



GMZ042>044-250830-
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-
1024 PM EDT Sun Mar 24 2019

SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE


OVERNIGHT
East winds 15 to 20 knots, decreasing to 10 to 15
knots overnight. Seas 2 to 3 feet. Nearshore waters choppy,
becoming a light to moderate chop. Isolated showers.

MONDAY
East winds 10 to 15 knots, becoming northeast to east
and decreasing to near 10 knots in the afternoon. Seas 1 to 3
feet. Nearshore waters a light to moderate chop. Isolated showers.

MONDAY NIGHT
North winds 10 to 15 knots. Seas around 1 foot.
Nearshore waters a light to moderate chop. Isolated showers.

TUESDAY
Northwest to north winds 10 to 15 knots. Seas 1 to
2 feet. Nearshore waters a light to moderate chop. Isolated
showers.

TUESDAY NIGHT
Northwest to north winds near 15 knots. Seas
1 to 3 feet. Nearshore waters a moderate chop. Isolated showers.

WEDNESDAY
Northwest to north winds 10 to 15 knots becoming
north near 20 knots late in the afternoon. Seas 2 to 4 feet.
Nearshore waters choppy.

WEDNESDAY NIGHT
North to northeast winds 20 to 25 knots. Seas
2 to 5 feet. Nearshore waters very rough. Isolated showers.

THURSDAY
Northeast winds 15 to 20 knots. Seas 2 to 5 feet.
Nearshore waters choppy. Isolated showers.

THURSDAY NIGHT
Northeast to east winds 15 to 20 knots. Seas
2 to 4 feet. Nearshore waters choppy. Isolated showers.

FRIDAY
Northeast to east winds 15 to 20 knots. Seas 2 to
4 feet. Nearshore waters choppy. Isolated showers.

FRIDAY NIGHT
East winds 15 to 20 knots. Seas 2 to 3 feet.
Nearshore waters choppy. Isolated showers.



GMZ052>055-072>075-250830-
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-
1024 PM EDT Sun Mar 24 2019

SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE


OVERNIGHT
East winds 15 to 20 knots, decreasing to near 15
knots overnight. Seas 3 to 5 feet. Isolated showers.

MONDAY
Northeast to east winds near 15 knots early, decreasing
to near 10 knots in the afternoon. Seas 3 to 4 feet, subsiding to
2 to 3 feet. Isolated showers.

MONDAY NIGHT
North to northeast winds 5 to 10 knots. Seas 1 to
3 feet. Isolated showers.

TUESDAY
Northwest to north winds 10 to 15 knots. Seas 2 to 3
feet. Isolated showers.

TUESDAY NIGHT
Northwest to north winds 10 to 15 knots. Seas
2 to 4 feet. Isolated showers.

WEDNESDAY
Northwest to north winds 15 to 20 knots. Seas 2 to
5 feet. Isolated showers.

WEDNESDAY NIGHT
North to northeast winds 20 to 25 knots. Seas
4 to 7 feet building to 5 to 9 feet after midnight. Isolated
showers.

THURSDAY
Northeast winds 20 to 25 knots. Seas 6 to 10 feet.
Isolated showers.

THURSDAY NIGHT
Northeast to east winds 15 to 20 knots. Seas
5 to 9 feet. Isolated showers.

FRIDAY
Northeast to east winds 15 to 20 knots. Seas 5 to
8 feet subsiding to 4 to 6 feet in the afternoon. Isolated
showers.

FRIDAY NIGHT
East winds 15 to 20 knots. Seas 4 to 6 feet.
Isolated showers.



GMZ033-034-250830-
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-
1024 PM EDT Sun Mar 24 2019

SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE


OVERNIGHT
East winds 15 to 20 knots, decreasing to 10 to 15
knots overnight. Seas 2 to 3 feet.

MONDAY
North to northeast winds 10 to 15 knots. Seas 1 to
3 feet.

MONDAY NIGHT
North to northeast winds 10 to 15 knots. Seas
1 to 2 feet.

TUESDAY
Northwest to north winds 10 to 15 knots. Seas 1 to
3 feet.

TUESDAY NIGHT
Northwest to north winds 10 to 15 knots. Seas
2 to 4 feet. Isolated showers.

WEDNESDAY
North winds 15 to 20 knots. Seas 3 to 4 feet
building to 3 to 6 feet in the afternoon.

WEDNESDAY NIGHT
Northeast winds 20 to 25 knots. Seas 5 to
8 feet.

THURSDAY
Northeast winds 20 to 25 knots. Seas 4 to 7 feet
subsiding to 3 to 5 feet in the afternoon.

THURSDAY NIGHT
Northeast to east winds 15 to 20 knots. Seas
3 to 5 feet.

FRIDAY
East winds 15 to 20 knots. Seas 2 to 5 feet.

FRIDAY NIGHT
East winds 15 to 20 knots. Seas 2 to 4 feet.
Isolated showers.