000
FZNT31 KNHC 112011
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
411 PM EDT Sun Mar 11 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...Fresh to strong trades will continue across the
waters east of 80W, except for near gale force winds just to the
north of the A-B-C islands expected through Tue night. A strong
cold front will enter the Yucatan channel and far NW Caribbean
late Mon afternoon or early evening, reach from central Cuba to
the Gulf of Honduras Tue, stall from Hispaniola to Nicaragua Tue
night, and dissipate by Thu. Strong high pres will build
southeastward from the Gulf of Mexico to over the NW Caribbean
beginning on Thu night. Strong NE winds are expected to develop
to the lee of Cuba and Windward Passage and vicinity waters Fri
and Fri night. 

NW Caribbean W of 85W

.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...SE winds 10 to 15 kt, shifting to S in the afternoon.
Seas 3 to 5 ft. 
.MON NIGHT...NE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft. 
.TUE...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 15 to 25 kt S of 18N, and SE 10 to 15 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere. 
.MON...E winds 15 to 25 kt S of 18N, and S 10 to 15 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere. 
.MON NIGHT...S of 18N, E winds 10 to 15 kt. Elsewhere, S winds
less than 10 kt, shifting to NW after midnight. Seas 6 to 9 ft S
of 18N, and 4 to 6 ft elsewhere. 
.TUE...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 

Caribbean from 11N to 15N W of 72W

.TONIGHT...E winds 20 to 30 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 11 ft. 
.MON...E winds 15 to 25 kt. Seas 8 to 11 ft. 
.MON NIGHT...E winds 15 to 25 kt within 90 nm of coast of
Colombia, and NE 10 to 20 kt elsewhere. Seas 7 to 10 ft. 
.TUE...NE winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.WED...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.WED NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

SW Caribbean S of 11N

.TONIGHT...N winds less than 10 kt. Seas 6 to 8 ft. 
.MON...N winds less than 10 kt. Seas 6 to 8 ft. 
.MON NIGHT...N winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 6 to 8 ft. 
.TUE...N winds less than 10 kt. Seas 5 to 7 ft. 
.TUE NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. 
.WED...N winds less than 10 kt. Seas 3 to 5 ft. 
.WED NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...N winds 10 to 20 kt. Seas 6 to 8 ft. 

Caribbean between 64W and 72W

.TONIGHT...E winds 25 to 30 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 8 to 11 ft. 
.MON...Gulf of Venezuela, E winds 20 to 30 kt, diminishing to
15 to 20 kt in the afternoon. Elsewhere, E winds 15 to 25 kt.
Seas 5 to 7 ft Gulf of Venezuela, and 8 to 11 ft elsewhere. 
.MON NIGHT...E winds 15 to 25 kt. Seas 5 to 7 ft Gulf of
Venezuela, and 7 to 10 ft elsewhere. 
.TUE...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to 20 kt
elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 6 to 9 ft
elsewhere. 
.TUE NIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.WED...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.THU...E winds 10 to 20 kt. Seas 6 to 8 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. 

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

.TONIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft. 
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.TUE...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.WED...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.THU...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.THU NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. 
.FRI...E winds less than 10 kt. Seas 5 to 7 ft. 
.FRI NIGHT...E winds less than 10 kt. Seas 5 to 7 ft. 

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

.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.WED...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.WED NIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 6 to 8 ft. 

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...An area of numerous showers and thunderstorms
located from 26N to 28N between 61W and 74W is associated with a
trough. This activity is capable of producing strong gusty winds
and frequent lightning as it quickly moves eastward through Mon 
ahead of the next cold front. This next cold front will emerge 
off the Georgia and NE Florida coasts late tonight into early 
Mon. The front will reach from near 31N79W to West Palm Beach 
early Mon afternoon, from near 31N75W to NW Cuba Mon evening, 
from near 31N67W to 26N70W to eastern Cuba early on Tue before 
stalling from near 27N65W to central Cuba Tue night. The cold 
front will gradually weaken through Thu as high pres builds 
eastward over the area. Minimal to strong gale force winds are 
expected over some areas both ahead and behind the front Mon 
through early Tue afternoon. In the wake of the front, relatively
weak high pres will build W to E along 27N through early Wed as 
yet another strong cold front begins to advance across the NW 
waters of the basin. This front will be preceded by fresh to 
strong southwest winds and mostly strong W to NW winds to the N 
of 27N as it quickly moves across the forecast waters to just 
east of the basin early on Thu. High pres will build from W to E 
across the central waters in the wake of the front. 

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

...GALE WARNING N OF 30N E OF 79W...

.TONIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 to 5 ft. 
.MON...SW to W winds 20 to 30 kt, except becoming W to NW 30 to
35 kt N of 30N E of 79W in the afternoon. Seas 6 to 8 ft, building
to 8 to 11 ft in the afternoon.
.MON NIGHT...NW winds 20 to 30 kt, except 30 to 35 kt N of 30N E
of 79W. Seas 10 to 12 ft.
.TUE...NW winds 15 to 25 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 7 to 10 ft. 
.TUE NIGHT...NW winds less than 10 kt. Seas 6 to 8 ft. 
.WED...W winds 10 to 20 kt. Seas 6 to 8 ft. 
.WED NIGHT...NW winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU...NW winds 10 to 20 kt. Seas 6 to 9 ft. 
.THU NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...NW winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...Variable winds less than 10 kt. Seas 3 to 4 ft. 

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

...GALE WARNING N OF 28N...

.TONIGHT...S winds 10 to 20 kt. Seas 5 to 6 ft. 
.MON...SW winds 15 to 25 kt. Seas 6 to 9 ft. 
.MON NIGHT...N of 28N, SW to W winds 30 to 40 kt Seas 11 to 14
ft, building to 14 to 18 ft late. Elsewhere SW winds 20 to 30 
kt. Seas 8 to 12 ft, building to 10 to 14 ft late.
.TUE...N OF 28N E OF 75W W to NW winds 30 to 40 kt diminishing to
15 to 25 kt afternoon. Seas 11 to 17 ft, subsiding to 9 to 12 ft
in the afternoon. Elsewhere, W to NW winds 20 to 30 kt 
diminishing to 10 to 15 kt in the afternoon except 20 to 25 kt N
of 30N E of 73W. Seas 9 to 13 ft, subsiding to 8 to 11 ft in the
afternoon except 10 to 13 ft N of 30N E of 73W.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 9 to 14 ft. 
.WED...W winds less than 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 8 to 13 ft. 
.WED NIGHT...W winds 10 to 20 kt. Seas 8 to 12 ft.
.THU...NW winds 10 to 20 kt. Seas 8 to 12 ft. 
.THU NIGHT...NW winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI...NW winds 10 to 20 kt. Seas 7 to 10 ft. 
.FRI NIGHT...NW winds 10 to 15 kt. Seas 7 to 10 ft. 

Bahamas N of 22N

.TONIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 
.MON...SW winds 10 to 20 kt. Seas 3 to 4 ft. 
.MON NIGHT...W winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE...N winds 10 to 20 kt. Seas 3 to 5 ft. 
.TUE NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.WED...Variable winds less than 10 kt, becoming N less than
10 kt in the afternoon. Seas 3 to 5 ft. 
.WED NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.TONIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...S winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE...W winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE NIGHT...N winds less than 10 kt. Seas 6 to 9 ft. 
.WED...NE winds less than 10 kt, shifting to SE in the
afternoon. Seas 6 to 9 ft. 
.WED NIGHT...W winds 10 to 15 kt. Seas 6 to 9 ft. 
.THU...NW winds 10 to 15 kt. Seas 7 to 9 ft. 
.THU NIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.FRI...N winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 6 to 8 ft. 

ATLC waters S of 22N W of 65W

.TONIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 
.WED...SE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 4 to 6 ft. 
.WED NIGHT...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...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI...NE winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

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

.TONIGHT...E winds 10 to 15 kt. Seas 7 to 8 ft. 
.MON...SE winds 15 kt. Seas 7 to 8 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.TUE...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.TUE NIGHT...SE winds 10 kt. Seas 6 to 7 ft. 
.WED...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.WED NIGHT...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.THU...SE winds 10 kt. Seas 6 to 7 ft. 
.THU NIGHT...SE winds less than 10 kt. Seas 6 to 7 ft. 
.FRI...Variable winds less than 10 kt. Seas 6 to 7 ft. 
.FRI NIGHT...Variable winds less than 10 kt. Seas 6 to 7 ft.