000
FZNT31 KNHC 271529
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1129 AM EDT Fri Oct 27 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...Strong high pressure centered over the middle
Atlantic U.S. coast is combining with elongated low pressure
extending from the W central Atlantic across the NE Caribbean
will support fresh to strong NE to E winds in the NW and
north-central Caribbean, including the Windward Passage through
Sun. Gentle winds are expected elsewhere. 

NW Caribbean W of 85W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...N winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.THIS AFTERNOON...E winds 10 to 20 kt S of 18N, and NE 15 to
25 kt elsewhere. Seas 5 to 7 ft. 
.TONIGHT...NE winds 15 to 25 kt. Seas 4 to 6 ft. 
.SAT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 3 to 5 ft. 
.SUN...S of 18N, NE winds 10 to 15 kt, increasing to 15 to 25 kt
in the afternoon. Elsewhere, NE winds 10 to 20 kt. Seas 3 to
5 ft. 
.SUN NIGHT...NW winds 15 to 25 kt S of 18N, and NE 10 to 20 kt
elsewhere. Seas 3 to 5 ft. 
.MON...W winds 15 to 25 kt S of 18N, and N 10 to 15 kt
elsewhere. Seas 3 to 4 ft. 
.MON NIGHT...W winds less than 10 kt S of 18N, and NW 10 to
15 kt elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less
elsewhere. 
.TUE...W winds less than 10 kt S of 18N, and W 10 to 15 kt
elsewhere. Seas 3 ft in the morning, subsiding to 2 ft or less. 

Caribbean from 11N to 15N W of 72W

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.SAT...SW winds 20 to 30 kt within 90 nm of coast of Colombia,
and NE 20 to 30 kt elsewhere. Seas 3 to 4 ft. 
.SAT NIGHT...NE winds 20 to 30 kt. Seas 3 to 5 ft. 
.SUN...SW winds 15 to 25 kt within 90 nm of coast of Colombia,
and NW 20 to 30 kt elsewhere. Seas 3 to 5 ft. 
.SUN NIGHT...SW winds 10 to 20 kt within 90 nm of coast of
Colombia, and W 15 to 25 kt elsewhere. Seas 3 to 5 ft. 
.MON...W winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...W winds 10 to 20 kt. Seas 2 ft or less. 

SW Caribbean S of 11N

.THIS AFTERNOON...SW winds 15 to 25 kt. Seas 3 ft. 
.TONIGHT...W winds 20 to 30 kt. Seas 3 to 4 ft. 
.SAT...W winds 20 to 30 kt. Seas 3 to 4 ft. 
.SAT NIGHT...W winds 15 to 25 kt. Seas 3 to 5 ft. 
.SUN...W winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...W winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON...W winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON NIGHT...SW winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less. 
.TUE...S winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 ft or less. 

Caribbean between 64W and 72W

.THIS AFTERNOON...Gulf of Venezuela, NE winds less than 10 kt,
shifting to W in the afternoon. Elsewhere, E winds 10 to 20 kt.
Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. 
.TONIGHT...NW winds 10 to 15 kt Gulf of Venezuela, and NE 15 to
25 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 4 to
6 ft elsewhere. 
.SAT...Gulf of Venezuela, W winds 10 to 15 kt, shifting to NW in
the afternoon. Elsewhere, NE winds 10 to 20 kt, shifting to S in
the afternoon. Seas 2 ft or less Gulf of Venezuela, and 4 to
6 ft elsewhere. 
.SAT NIGHT...NW winds 10 to 20 kt, shifting to E after midnight.
Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft elsewhere. 
.SUN...Gulf of Venezuela, E winds less than 10 kt, shifting to
SW in the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas 2 ft
or less Gulf of Venezuela, and 3 to 5 ft elsewhere. 
.SUN NIGHT...N winds less than 10 kt Gulf of Venezuela, and SE
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 5 ft elsewhere. 
.MON...Gulf of Venezuela, N winds less than 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 to
4 ft elsewhere. 
.MON NIGHT...Gulf of Venezuela, NE winds less than 10 kt,
shifting to S after midnight. Elsewhere, E winds 10 to 15 kt.
Seas 2 ft or less Gulf of Venezuela, and 3 to 4 ft elsewhere. 
.TUE...NW winds less than 10 kt Gulf of Venezuela, and S 10 to
20 kt elsewhere. 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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TONIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.SAT...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.SUN...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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...SE winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tammy has redeveloped into a Tropical Storm near 
32.2W 61.1W at 1500 UTC, moving NW at 3 kt. Estimated central 
pressure is 988 mb. Maximum sustained winds are 55 kt gusting to
65 kt. High pressure across the middle Atlantic coastal states
is combining with a low level trough than extends from S of 
Tammy to the NE Caribbean to produce a large area of fresh to 
locally strong winds and very high seas between Tammy and the 
Bahamas. These associated high seas between Tammy and the Bahamas
will slowly begin to subside Sat through Sun. Tammy is expected 
to meander and remain N of the area waters through Sat, then move
eastward and brush the far NE waters Sat night, then gradually 
weaken E of 55W early next week. Elongated low pressure will 
develop across the SE Bahamas Sun and gradually drift W through 
Tue. 

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

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 7 to 9 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft. 
.SAT...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.SUN...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...N winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.THIS AFTERNOON...NE winds 10 to 20 kt W of 70W, and NE 20 to
30 kt elsewhere. Seas 10 to 15 ft W of 70W, and 16 to 19 ft
elsewhere. 
.TONIGHT...NE winds 15 to 25 kt. Seas 10 to 15 ft W of 70W, and
12 to 17 ft elsewhere. 
.SAT...NE winds 10 to 20 kt. Seas 8 to 12 ft. 
.SAT NIGHT...NE winds 15 to 25 kt W of 70W, and NE 10 to 20 kt
elsewhere. Seas 7 to 10 ft. 
.SUN...E winds 15 to 25 kt W of 70W, and E 10 to 20 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 5 to 7 ft elsewhere. 
.SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.MON...E winds 15 to 25 kt. Seas 5 to 7 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.TUE...SW winds 10 to 20 kt. Seas 5 to 6 ft. 

Bahamas N of 22N

.THIS AFTERNOON...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.TONIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.SAT...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.SAT NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN...NE winds 15 to 25 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 20 kt, shifting to W in the afternoon. Seas
3 to 5 ft. 
.MON NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...NW winds 10 to 15 kt. Seas 3 to 4 ft. 

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

.THIS AFTERNOON...NE winds 10 to 20 kt. Seas 14 to 16 ft. 
.TONIGHT...NE winds 15 to 25 kt W of 70W, and E 10 to 20 kt
elsewhere. Seas 11 to 15 ft. 
.SAT...NE winds 15 to 25 kt W of 70W, and E 10 to 20 kt
elsewhere. Seas 9 to 13 ft. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. 
.SUN...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.SUN NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft. 
.MON...SE winds 15 to 25 kt. Seas 6 to 9 ft. 
.MON NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.TUE...S winds 10 to 20 kt. Seas 5 to 6 ft. 

ATLC waters S of 22N W of 65W

.THIS AFTERNOON...NE winds 10 to 20 kt. Seas 8 to 11 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 8 to 11 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN...SE winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 8 to 10 ft. 
.TONIGHT...E winds 10 to 20 kt. Seas 8 to 10 ft. 
.SAT...SE winds 10 to 20 kt. Seas 7 to 10 ft. 
.SAT NIGHT...SE winds 15 to 25 kt. Seas 6 to 9 ft. 
.SUN...SE winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 ft. 
.TUE...SE winds 10 to 15 kt. Seas 5 ft.