000
FZNT31 KNHC 260320
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1120 PM EDT Wed Oct 25 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...Fresh to occasionally strong winds will prevail in
the NW and north-central Caribbean through the week. Gentle
winds will prevail elsewhere. 

NW Caribbean W of 85W

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...N winds less than 10 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...NE 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 E 15 to 25 kt
elsewhere. Seas 4 to 6 ft. 
.THU NIGHT...E winds 10 to 20 kt S of 18N, and NE 15 to 25 kt
elsewhere. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds less than 10 kt S of 18N, and E 10 to
15 kt elsewhere. Seas 3 to 4 ft. 
.MON...S of 18N, SW winds less than 10 kt. Elsewhere, E winds
10 to 15 kt, diminishing to less than 10 kt in the afternoon.
Seas 2 ft or less. 

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...E winds less than 10 kt. Seas 3 ft, subsiding to
2 ft or less. 
.THU...S winds less than 10 kt within 90 nm of coast of
Colombia, and E 10 to 15 kt elsewhere. Seas 2 ft or less,
building to 3 ft in the afternoon. 
.THU NIGHT...E winds less than 10 kt. Seas 3 ft. 
.FRI...Within 90 nm of coast of Colombia, SW winds 10 to 15 kt.
Elsewhere, E winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 ft. 
.FRI NIGHT...N winds 10 to 15 kt. Seas 3 ft. 
.SAT...N winds 10 to 15 kt, shifting to W 10 to 20 kt in the
afternoon. Seas 3 to 4 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 3 to 4 ft. 
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...Within 90 nm of coast of Colombia, SW winds 10 to
15 kt. Elsewhere, SW winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 4 ft. 
.MON...SW winds less than 10 kt within 90 nm of coast of
Colombia, and SW 10 to 15 kt elsewhere. Seas 3 ft in the
morning, subsiding to 2 ft or less. 

SW Caribbean S of 11N

.OVERNIGHT...SW winds less than 10 kt. Seas 2 ft or less. 
.THU...SW winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 2 ft or less. 
.THU NIGHT...W winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.FRI...W winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft
in the afternoon. 
.FRI NIGHT...W winds 10 to 15 kt. Seas 3 ft. 
.SAT...W winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...SW winds 10 to 15 kt. Seas 3 ft. 

Caribbean between 64W and 72W

.OVERNIGHT...NE winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 3 to 4 ft elsewhere. 
.THU...Gulf of Venezuela, S 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
5 ft elsewhere. 
.THU NIGHT...Variable winds less than 10 kt Gulf of Venezuela,
and E 10 to 20 kt elsewhere. Seas 2 ft or less Gulf of
Venezuela, and 3 to 5 ft elsewhere. 
.FRI...Variable winds less than 10 kt Gulf of Venezuela, and E
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 5 ft elsewhere. 
.FRI NIGHT...Gulf of Venezuela, N winds 10 kt in the evening,
becoming variable winds less than 10 kt. Elsewhere, E winds
10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to 5 ft
elsewhere. 
.SAT...Variable winds less than 10 kt Gulf of Venezuela, and SE
10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 5 ft elsewhere. 
.SAT NIGHT...Variable 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 to 5 ft elsewhere. 
.SUN...Variable winds less than 10 kt Gulf of Venezuela, and SE
10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 to 5 ft elsewhere. 
.SUN NIGHT...Variable 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 to 4 ft elsewhere. 
.MON...Variable winds less than 10 kt Gulf of Venezuela, and SE
10 to 15 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

.OVERNIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.SUN...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 15 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 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Hurricane Tammy is near 29.9N 57.8W at 11 PM EDT,
and is moving north-northeast at 17 kt. Maximum sustained winds 
are 80 kt with gusts to 100 kt, and the minimum central pressure 
is 973 mb. Tammy will become extratropical and move to 30.7N 
58.6W Thu morning, be near 31.3N 59.8W Thu evening, and 31.6N 
60.8W Fri morning. Tammy will reach 31.9N 62.0W Fri evening, 
32.1N 61.7W Sat morning, and 32.2N 61.0W Sat evening. Tammy will 
change little in intensity as it moves E of Bermuda late Sun. A 
stationary front from 31N57W to the SE Bahamas will dissipate 
overnight, but the gradient between Tammy and the decaying front 
combined with high pressure building N of the area will support a
broad area of strong to near gale NE winds and rough seas across
much of the area this week, mainly W of where the frontal 
boundary currently resides. 

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

.OVERNIGHT...E winds 20 to 30 kt. Seas 9 to 12 ft. 
.THU...E winds 15 to 25 kt. Seas 9 to 12 ft. 
.THU NIGHT...E winds 15 to 25 kt. Seas 8 to 11 ft. 
.FRI...E winds 15 to 25 kt. Seas 8 to 11 ft. 
.FRI NIGHT...NE winds 15 to 25 kt. Seas 8 to 12 ft. 
.SAT...NE winds 15 to 25 kt. Seas 8 to 12 ft. 
.SAT NIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft. 
.SUN...NE winds 15 to 25 kt. Seas 7 to 10 ft. 
.SUN NIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft. 
.MON...NE winds 10 to 20 kt. Seas 6 to 9 ft. 

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

.OVERNIGHT...NE winds 20 to 30 kt. Seas 11 to 13 ft W of 70W,
and 13 to 16 ft elsewhere. 
.THU...NE winds 20 to 30 kt. Seas 10 to 13 ft W of 70W, and
13 to 17 ft elsewhere. 
.THU NIGHT...NE winds 20 to 30 kt. Seas 10 to 14 ft W of 70W,
and 14 to 19 ft elsewhere. 
.FRI...NE winds 20 to 30 kt W of 70W, and N 20 to 30 kt
elsewhere. Seas 10 to 14 ft W of 70W, and 14 to 19 ft elsewhere.
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 25 to
35 kt W of 70W, and N 25 to 35 kt elsewhere. Seas 11 to 15 ft. 
.SAT...NE winds 15 to 25 kt. Seas 9 to 13 ft. 
.SAT NIGHT...NE winds 15 to 25 kt. Seas 8 to 12 ft. 
.SUN...NE winds 15 to 25 kt. Seas 8 to 11 ft W of 70W, and 6 to
8 ft elsewhere. 
.SUN NIGHT...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. 
.MON...E winds 15 to 25 kt W of 70W, and SE 10 to 20 kt
elsewhere. Seas 6 to 8 ft. 

Bahamas N of 22N

.OVERNIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. 
.THU...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.THU NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.FRI...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.SAT...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.SAT NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 20 kt. Seas 3 to 5 ft. 

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

.OVERNIGHT...NE winds 15 to 25 kt. Seas 11 to 14 ft.
.THU...NE winds 15 to 25 kt. Seas 11 to 13 ft. 
.THU NIGHT...NE winds 15 to 25 kt. Seas 11 to 14 ft. 
.FRI...NE winds 15 to 25 kt W of 70W, and NE 10 to 20 kt
elsewhere. Seas 11 to 14 ft. 
.FRI NIGHT...NE winds 15 to 25 kt W of 70W, and NE 10 to 20 kt
elsewhere. Seas 10 to 13 ft. 
.SAT...NE winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 8 to 12 ft. 
.SAT NIGHT...NE winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 8 to 12 ft W of 70W, and 7 to 9 ft elsewhere. 
.SUN...E winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 8 to 11 ft W of 70W, and 6 to 8 ft elsewhere. 
.SUN NIGHT...E winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 6 to 9 ft. 
.MON...SE winds 10 to 20 kt. Seas 5 to 7 ft. 

ATLC waters S of 22N W of 65W

.OVERNIGHT...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.THU...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI...NE winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...SE winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.OVERNIGHT...SE winds 10 to 15 kt. Seas 6 to 9 ft. 
.THU...SE winds 10 to 15 kt. Seas 7 to 10 ft. 
.THU NIGHT...SE winds 10 to 15 kt. Seas 7 to 10 ft. 
.FRI...SE winds 10 to 15 kt. Seas 7 to 10 ft. 
.FRI NIGHT...SE winds 10 to 15 kt. Seas 7 to 10 ft. 
.SAT...SE winds 10 to 20 kt. Seas 7 to 9 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.SUN...E winds 10 to 15 kt. Seas 6 to 7 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 6 ft.