000
FZNT31 KNHC 010834
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
334 AM EST Thu Mar 1 2018

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 ATLC from 07N to 19N
between 55W and 64W

.SYNOPSIS...High pressure north of the area will support
moderate to fresh trade winds across the basin, with strong
winds pulsing at night off Colombia through late week. Large NE
swell will impact the tropical Atlantic waters through Sat, with
an even more significant N swell event penetrating the NE
Caribbean Sun night. 

NW Caribbean W of 85W

.TODAY...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.FRI NIGHT...NE winds less than 10 kt. Seas 3 ft.
.SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.MON NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 15 kt. S of 18N, seas 3 to 5 ft.
Elsewhere, seas 3 ft in the morning, subsiding to 2 ft or less. 
.TONIGHT...E winds 10 to 15 kt S of 18N, and E less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.FRI...E winds 10 to 15 kt S of 18N, and NE less than 10 kt
elsewhere. Seas 3 to 5 ft S of 18N, and 2 ft or less elsewhere. 
.FRI NIGHT...S of 18N, NE winds 10 to 15 kt, diminishing to less
than 10 kt after midnight. Elsewhere, N winds less than 10 kt,
increasing to 10 to 15 kt after midnight. Seas 3 ft. 
.SAT...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft in the morning, subsiding to 2 ft
or less. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...NE winds 10 to 20 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 3 to 5 ft. 

Caribbean from 11N to 15N W of 72W

.TODAY...E winds 15 to 20 kt within 90 nm of coast of Colombia,
and E 10 to 15 kt elsewhere. Seas 4 to 6 ft. 
.TONIGHT...E winds 15 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 6 to 9 ft within
90 nm of coast of Colombia, and 4 to 6 ft elsewhere. 
.FRI...E winds 15 to 25 kt within 90 nm of coast of Colombia,
and E 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 15 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 15 kt elsewhere. Seas 5 to 7 ft. 
.SAT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...N winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...N winds 10 to 15 kt, shifting to NE after midnight.
Seas 3 to 4 ft. 
.MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN...N winds 10 to 15 kt. Seas 4 to 5 ft. 
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...N winds less than 10 kt. Seas 3 ft. 
.MON NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean between 64W and 72W

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.SAT...E winds less than 10 kt. Seas 3 to 5 ft. 
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft. 
.SUN...NE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 3 to 4 ft. 
.SUN NIGHT...N winds less than 10 kt. Seas 3 to 5 ft. 
.MON...NE winds less than 10 kt. Seas 4 to 6 ft. 
.MON NIGHT...NE winds less than 10 kt. Seas 4 to 6 ft. 

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

.TODAY...NE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 6 to 9 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...E winds less than 10 kt. Seas 6 to 8 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft.
.SAT...S winds less than 10 kt. Seas 5 to 7 ft. 
.SAT NIGHT...S winds less than 10 kt. Seas 4 to 6 ft. 
.SUN...SW winds 10 to 15 kt. Seas 5 to 7 ft. 
.SUN NIGHT...W winds 10 to 15 kt. Seas 7 to 10 ft, building to
8 to 13 ft after midnight. 
.MON...W winds less than 10 kt. Seas 8 to 13 ft. 
.MON NIGHT...NW winds less than 10 kt. Seas 8 to 11 ft. 

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

.TODAY...E winds less than 10 kt. Seas 6 to 9 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 6 to 8 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 6 ft. 
.SUN...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 6 ft. 
.SUN NIGHT...SE winds less than 10 kt, shifting to E after
midnight. Seas 5 to 7 ft. 
.MON...SE winds 10 to 15 kt. Seas 6 to 9 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 7 to 10 ft. 

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Weak ridging along 29N will shift east ahead of a
cold front moving off the NE Florida coast late today. The front
will reach from Bermuda to SE Florida Fri afternoon, just ahead
of a reinforcing front which will generate strong to gale force 
winds north of 24N east of 75W as deep low pressure moves off
the Virginia coast. The fronts will merge Sat and stall from 
22N65W to the Windward Passage by Sun before dissipating Mon. A 
significant swell event and likely the largest of this winter 
season will accompany this system, affecting all waters E of 
Florida and the Bahamas by the end of this week. 

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

.TODAY...SW winds 10 to 20 kt. Seas 5 to 6 ft. 
.TONIGHT...W winds 15 to 25 kt. Seas 6 to 9 ft. 
.FRI...NW winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NW winds 15 to 25 kt. Seas 7 to 10 ft. 
.SAT...N winds 20 to 25 kt. Seas 9 to 14 ft. 
.SAT NIGHT...N winds 20 to 25 kt. Seas 11 to 16 ft. 
.SUN...N winds 20 to 25 kt. Seas 13 to 18 ft. 
.SUN NIGHT...N winds 15 to 25 kt. Seas 14 to 19 ft. 
.MON...N winds 15 to 20 kt. Seas 14 to 18 ft. 
.MON NIGHT...N winds 10 to 15 kt. Seas 13 to 16 ft. 

ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W

...GALE CONDITIONS POSSIBLE SAT THROUGH SUN...

.TODAY...W of 70W, S winds 10 to 15 kt. Elsewhere, SE winds less
than 10 kt, shifting to S in the afternoon. Seas 6 to 9 ft. 
.TONIGHT...SW winds 15 to 25 kt. Seas 6 to 9 ft. 
.FRI...W winds 15 to 25 kt W of 70W, and SW 20 to 30 kt
elsewhere. Seas 7 to 10 ft, building to 8 to 13 ft in the
afternoon. 
.FRI NIGHT...NW winds 20 to 30 kt. Seas 10 to 15 ft, building to
13 to 18 ft after midnight. 
.SAT...NW winds 25 to 35 kt. Seas 17 to 22 ft, building to 17 to
27 ft in the afternoon. 
.SAT NIGHT...NW winds 25 to 35 kt. Seas 19 to 29 ft. 
.SUN...NW winds 25 to 35 kt diminishing to 20 to 30 kt. Seas 19 
to 27 ft.
.SUN NIGHT...N winds 20 to 30 kt. Seas 19 to 25 ft. 
.MON...N winds 15 to 25 kt. Seas 18 to 24 ft. 
.MON NIGHT...NW winds 15 to 25 kt. Seas 17 to 23 ft. 

Bahamas N of 22N

.TODAY...SE winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...S winds less than 10 kt. Seas 3 to 4 ft. 
.FRI...W winds less than 10 kt. Seas 3 to 4 ft. 
.FRI NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. 
.SUN...N winds 10 to 20 kt. Seas 7 to 10 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft. 
.MON...N winds 10 to 20 kt. Seas 7 to 10 ft. 
.MON NIGHT...N winds 10 to 15 kt. Seas 7 to 10 ft. 

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

.TODAY...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 6 to 9 ft. 
.TONIGHT...W of 70W, S winds less than 10 kt, shifting to SW
after midnight. Elsewhere, Variable winds less than 10 kt. Seas
6 to 8 ft. 
.FRI...SW winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI NIGHT...W winds 10 to 20 kt. Seas 6 to 9 ft. 
.SAT...NW winds 15 to 25 kt. Seas 8 to 11 ft, building to 10 to
15 ft in the afternoon. 
.SAT NIGHT...NW winds 20 to 30 kt. Seas 13 to 18 ft, building to
16 to 21 ft after midnight. 
.SUN...NW winds 15 to 25 kt. Seas 17 to 23 ft. 
.SUN NIGHT...NW winds 15 to 25 kt. Seas 17 to 22 ft. 
.MON...NW winds 15 to 20 kt. Seas 16 to 20 ft. 
.MON NIGHT...NW winds 10 to 20 kt. Seas 15 to 19 ft. 

ATLC waters S of 22N W of 65W

.TODAY...E winds less than 10 kt. Seas 5 to 7 ft. 
.TONIGHT...E winds less than 10 kt. Seas 5 to 7 ft. 
.FRI...Variable winds less than 10 kt. Seas 5 to 7 ft. 
.FRI NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. 
.SAT...W winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 5 ft. 
.SAT NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft, building to
7 to 10 ft after midnight. 
.SUN...NW winds 10 to 20 kt. Seas 9 to 14 ft. 
.SUN NIGHT...NW winds 10 to 20 kt. Seas 10 to 15 ft. 
.MON...NW winds 10 to 15 kt. Seas 9 to 14 ft. 
.MON NIGHT...NW winds 10 to 15 kt. Seas 8 to 13 ft. 

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

.TODAY...Variable winds less than 10 kt. Seas 8 to 9 ft. 
.TONIGHT...Variable winds less than 10 kt. Seas 8 to 9 ft. 
.FRI...Variable winds less than 10 kt. Seas 7 to 9 ft. 
.FRI NIGHT...Variable winds less than 10 kt, becoming SW less
than 10 kt after midnight. Seas 6 to 8 ft. 
.SAT...SW winds 10 to 15 kt. Seas 6 to 7 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 7 to 10 ft. 
.SUN...W winds 15 to 25 kt. Seas 9 to 14 ft, building to 12 to
17 ft in the afternoon. 
.SUN NIGHT...W winds 10 to 20 kt. Seas 14 to 18 ft. 
.MON...W winds 10 to 20 kt. Seas 14 to 17 ft. 
.MON NIGHT...W winds 10 to 20 kt. Seas 12 to 15 ft.