000
FZNT31 KNHC 221514
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1114 AM EDT Sun Oct 22 2023

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 22N between 55W and 64W, the SW N Atlantic S of
31N W of 65W including Bahamas, and the Caribbean Sea.

Seas 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.

Synopsis for Caribbean Sea and Tropical N Atlantic from
07N to 19N between 55W and 64W

.SYNOPSIS...Hurricane Tammy is about 45 nm northeast of Anguilla
Island near 19.1N 63.0W at 11 AM EDT, and is moving northwest at
8 kt. Maximum sustained winds are 70 kt with gusts to 85 kt, and
the minimum central pressure is 993 mb. Tammy will move to 20.1N
63.6W this evening, then continue to move north of the region
through mid week. Meanwhile, showers and thunderstorms have
become better organized in association with a low pressure
system located over the southwestern Caribbean Sea around 60 nm
of Providencia Island. Gradual development of this system is
possible, and a tropical depression could form before the system
moves inland over Nicaragua by early Tue. A weak cold front will
move into the northwest Caribbean later today, then stall from
eastern Cuba to near Cozumel Island, Mexico Tue. 

NW Caribbean W of 85W

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. 
.MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.MON...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 3 to 5 ft. 
.TUE...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 3 to 5 ft. 
.WED...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 4 to 6 ft. 
.THU...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 4 to 6 ft. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...Variable winds less than 10 kt within 90 nm of
coast of Colombia, and E 10 to 20 kt elsewhere. Seas 3 ft. 
.TONIGHT...NE winds less than 10 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 3 ft. 
.MON...E winds 10 kt within 90 nm of coast of Colombia, and E
20 to 30 kt elsewhere. Seas 3 to 4 ft. 
.MON NIGHT...NE winds 10 kt within 90 nm of coast of Colombia,
and E 20 to 30 kt elsewhere. Seas 3 to 4 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 ft. 
.TUE NIGHT...E winds 10 to 15 kt, shifting to NE after midnight.
Seas 2 ft or less. 
.WED...E winds less than 10 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 2 ft or less. 
.WED NIGHT...SE winds less than 10 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 2 ft or less. 
.THU...S winds less than 10 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 2 ft or less. 

SW Caribbean S of 11N

.THIS AFTERNOON...S winds 10 to 20 kt. Seas 3 ft, subsiding to
2 ft or less. 
.TONIGHT...SW winds 10 to 20 kt. Seas 2 ft or less. 
.MON...S winds 10 to 20 kt. Seas 2 ft or less. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less. 
.TUE...SE winds 10 to 15 kt, shifting to S in the afternoon.
Seas 2 ft or less. 
.TUE NIGHT...NW winds less than 10 kt. Seas 2 ft or less. 
.WED...W winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...W winds less than 10 kt. Seas 2 ft or less. 
.THU...W winds less than 10 kt. Seas 2 ft or less. 

Caribbean between 64W and 72W

.THIS AFTERNOON...Variable winds less than 10 kt Gulf of
Venezuela, and SW 10 to 15 kt elsewhere. Seas 2 ft or less Gulf
of Venezuela, and 3 to 4 ft elsewhere. 
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere. 
.MON...Gulf of Venezuela, E winds 10 kt in the morning, becoming
variable winds less than 10 kt. Elsewhere, SE winds 10 to 15 kt.
Seas 2 ft or less Gulf of Venezuela, and 3 ft elsewhere. 
.MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 ft elsewhere. 
.TUE...NE winds less than 10 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 ft
elsewhere. 
.TUE NIGHT...NE winds 10 to 20 kt. Seas 2 ft or less, building
to 3 ft after midnight. 
.WED...NE winds less than 10 kt Gulf of Venezuela, and NE 10 to
20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere. 
.WED NIGHT...E winds less than 10 kt Gulf of Venezuela, and NE
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 4 ft elsewhere. 
.THU...Gulf of Venezuela, E winds less than 10 kt in the
morning, becoming variable winds less than 10 kt. Elsewhere, E
winds 10 to 20 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere. 

Offshore Leeward Islands and adjacent ATLC waters from 15N to
19N W of 55W

...HURRICANE WARNING...

.THIS AFTERNOON...HURRICANE CONDITIONS. In the Caribbean, S to 
SW winds 15 to 20 kt. In the Atlc, S winds 55 to 65 kt, 
diminishing to 35 to 40 kt in the afternoon. Seas 9 to 13 ft 
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to
30 kt. Seas 5 to 7 ft. 
.MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. 

Offshore Windward Islands and adjacent ATLC waters from 07N to
15N W of 55W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Hurricane Tammy is near 19.1N 63.0W at 11 AM EDT,
and
is moving northwest at 8 kt. Maximum sustained winds are 70 kt
with gusts to 85 kt, and the minimum central pressure is 993 mb.
Tammy will move to 20.1N 63.6W this evening, 21.4N 63.9W Mon
morning, and 22.3N 63.5W Mon evening. Tammy will continue to
23.0N 62.9W Tue morning, 23.6N 62.0W Tue evening, 24.5N 61.0W
Wed morning, and to 27.5N 60.5W by early Thu. Farther west, a 
slow moving cold front stretches from 31N62W to the central 
Bahamas. This front will slide east and gradually dissipate into 
tonight. A second cold front will move off Florida tonight, then 
move eastward across the northern portions of the waters early 
this week. Looking ahead, high pressure building in the wake of 
the front combined with the impacts of Hurricane Tammy will bring
an increase in winds and seas across the forecast area Mon night
through Thu. 

ATLC waters from 27N to 31N W of 77W

.THIS AFTERNOON...W winds 10 to 20 kt. Seas 3 to 5 ft. 
.TONIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.TUE NIGHT...E winds 20 to 30 kt. Seas 6 to 9 ft. 
.WED...E winds 20 to 30 kt. Seas 7 to 9 ft. 
.WED NIGHT...E winds 20 to 30 kt. Seas 8 to 10 ft.
.THU...E winds 20 to 30 kt. Seas 8 to 11 ft. 

ATLC waters from 27N to 31N between 65W and 77W

.THIS AFTERNOON...W winds 10 to 15 kt. Seas 6 to 9 ft. 
.TONIGHT...W winds 10 to 15 kt. Seas 6 to 8 ft. 
.MON...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.TUE...NE winds 15 to 25 kt. Seas 7 to 9 ft. 
.TUE NIGHT...NE winds 20 to 30 kt. Seas 8 to 11 ft. 
.WED...NE winds 20 to 30 kt. Seas 8 to 12 ft. 
.WED NIGHT...NE winds 20 to 30 kt. Seas 9 to 13 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. 

Bahamas N of 22N

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 3 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft. 
.MON...NE winds 10 to 20 kt. Seas 3 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 3 to 4 ft. 
.TUE...NE winds 10 to 20 kt, increasing to 20 to 30 kt in the
afternoon. Seas 3 to 5 ft. 
.TUE NIGHT...NE winds 20 to 30 kt. Seas 5 to 7 ft. 
.WED...NE winds 20 to 30 kt. Seas 5 to 7 ft. 
.WED NIGHT...NE winds 20 to 30 kt. Seas 5 to 7 ft. 
.THU...NE winds 20 to 30 kt. Seas 6 to 8 ft. 

ATLC waters from 22N to 27N between 65W and the Bahamas

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to
20 kt. Seas 5 to 7 ft W of 70W, and 7 to 9 ft elsewhere. 
.MON...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to 20 kt
W of 70W, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft W of 70W,
and 8 to 11 ft elsewhere. 
.MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to
20 kt W of 70W, and NE 15 to 25 kt elsewhere. Seas 6 to 8 ft W
of 70W, and 8 to 11 ft elsewhere. 
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 20 to 30 kt
W of 70W, and NE 15 to 25 kt elsewhere. Seas 8 to 11 ft. 
.TUE NIGHT...NE winds 20 to 30 kt. Seas 8 to 12 ft. 
.WED...NE winds 20 to 30 kt W of 70W, and NE 15 to 25 kt
elsewhere. Seas 10 to 12 ft. 
.WED NIGHT...NE winds 20 to 30 kt W of 70W, and NE 15 to 25 kt
elsewhere. Seas 10 to 14 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to
25 kt. Seas 6 to 8 ft. 
.MON...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to
25 kt. Seas 6 to 9 ft. 
.MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to
25 kt. Seas 5 to 7 ft. 
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to
20 kt. Seas 5 to 7 ft. 
.TUE NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. 
.WED...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.WED NIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.THU...NE winds 15 to 25 kt. Seas 7 to 10 ft. 

ATLC waters from 19N to 22N between 55W and 65W

...HURRICANE WARNING...

.THIS AFTERNOON...TROPICAL STORM CONDITIONS. SE winds 55 to
70 kt. Seas 9 to 14 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. SE winds 55 to
70 kt. Seas 10 to 15 ft. 
.MON...TROPICAL STORM CONDITIONS EXPECTED. SE winds 60 to
70 kt. Seas 9 to 14 ft. 
.MON NIGHT...TROPICAL STORM CONDITIONS EXPECTED. S winds 55 to
65 kt, diminishing to 30 to 40 kt after midnight. Seas 7 to
10 ft. 
.TUE...TROPICAL STORM CONDITIONS POSSIBLE. S winds 25 to 35 kt.
Seas 6 to 8 ft. 
.TUE NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.WED...TROPICAL STORM CONDITIONS POSSIBLE. 
.WED NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.THU...SE winds 10 to 15 kt. Seas 6 to 8 ft.