000
FZNT31 KNHC 210915
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
515 AM EDT Thu Mar 21 2024

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 strong northeast to east winds will
continue near the coast of Colombia through Sat night, then
diminish to moderate to fresh Sun and Sun night. Moderate to
fresh trades are expected elsewhere over the east and central
Caribbean while gentle to moderate winds will prevail over the
NW Caribbean. Fresh to strong southeast to south winds will
develop in the northwest Caribbean and in the Yucatan Channel by
early Fri as low pressure and its attendant cold front move
across the Gulf of Mexico. This front will likely reach the
Yucatan Channel and the far northwestern Caribbean on Sat
afternoon, then gradually weaken as it moves across the rest of
the northwest Caribbean through the weekend, eventually stalling
and dissipating. Fresh southeast winds develop over most of the
western Caribbean Mon and Mon night, with the exception of fresh
to strong winds near the northeast coast of Honduras. 

NW Caribbean W of 85W

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

Caribbean N of 15N between 72W and 85W

.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...W winds 10 to 15 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 15 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 NE 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 5 to 7 ft. 
.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...E winds 20 to 25 kt within 90 nm of coast of
Colombia, and E 10 to 20 kt elsewhere. 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 4 to 6 ft.
.SUN NIGHT...NE winds less than 10 kt. Seas 3 to 5 ft. 
.MON...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft. 

SW Caribbean S of 11N

.TODAY...NE winds 10 to 15 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 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...NE winds less than 10 kt. Seas 4 to 6 ft. 
.SAT NIGHT...N winds less than 10 kt. Seas 4 to 6 ft. 
.SUN...Variable winds less than 10 kt, becoming NW less than
10 kt in the afternoon. Seas 3 to 5 ft. 
.SUN NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. 
.MON...Variable winds less than 10 kt. Seas 3 ft. 
.MON NIGHT...Variable winds less than 10 kt. Seas 3 ft in the
evening, subsiding to 2 ft or less. 

Caribbean between 64W and 72W

.TODAY...NE winds 15 to 20 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 4 to 6 ft. 
.TONIGHT...NE winds 15 to 25 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 3 to 5 ft. 
.FRI...E winds 15 to 20 kt Gulf of Venezuela, and E 10 to 15 kt
elsewhere. Seas 4 to 6 ft. 
.FRI NIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 4 to 6 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 6 ft. 
.SUN...SE winds 10 to 20 kt. Seas 5 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds less than 10 kt. Seas 3 to 5 ft. 

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

.TODAY...E winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...E 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 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 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...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 

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

.TODAY...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TONIGHT...E 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 5 to 7 ft. 
.SAT...E winds 10 to 15 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 15 kt. Seas 5 to 7 ft. 
.MON...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A cold front extends from near 31N56W southwestward 
to 23N64W, where it transitions to a stationary front to
northern Hispaniola. By Fri morning, the northern part of the 
front will shift E of the area, while the southern part will 
remain nearly stationary along the northern coast of Hispaniola. 
The front will dissipate E of the area on Sat. High pressure in 
the wake of the front will quickly move eastward through Fri 
night, allowing for fresh to strong southerly winds to develop E 
of Florida as low pressure tracks northeastward from the Gulf of 
Mexico to inland the southeastern U.S. Fri night into Sat. These 
winds will expand in coverage ahead the trailing cold front over 
the western waters, reaching from near 31N69W to the Windward 
Passage by late Sun night, and from near 31N64W to near the 
Virgin Islands by late Mon night. Gale conditions will be 
possible over most of the northern and central zones with the 
southerly winds Fri through Sat. Strong to near gale force 
northeast winds and rough seas will follow this front.

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

...GALE WARNING E OF 79W FRI NIGHT...

.TODAY...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 3 to 4 ft. 
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...N of 29N, SE winds 20 to 30 kt with frequent gusts to 
gale force. Seas 7 to 10 ft. S of 29N, SE winds 25 to 30 kt. Seas
4 to 6 ft, building 6 to 9 ft early in the evening. 
.FRI NIGHT...N of 29N, SW winds 20 to 30 kt W of 79W and S 30 to
35 kt E of 79W. Seas 9 to 14 ft. S of 29N, S winds 20 to 30 kt. 
Seas 8 to 12 ft. 
.SAT...SW winds 20 to 30 kt, becoming W 10 to 20 kt in the
afternoon. Seas 9 to 13 ft. 
.SAT NIGHT...NW to N winds less than 10 kt. Seas 8 to 11 ft.
.SUN...NE winds 15 to 25 kt. Seas 8 to 11 ft. 
.SUN NIGHT...NE winds 15 to 25 kt. Seas 10 to 15 ft.
.MON...NE winds 15 to 20 kt. Seas 11 to 14 ft. 
.MON NIGHT...E winds 15 to 20 kt. Seas 10 to 13 ft. 

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

...GALE CONDITIONS POSSIBLE W OF 67W FRI NIGHT THROUGH SAT 
NIGHT...

.TODAY...NE winds less than 10 kt. Seas 4 to 6 ft. 
.THU NIGHT...W of 70W, E to SE winds less than 10 kt. Elsewhere,
NE winds less than 10 kt. Seas 3 to 5 ft. 
.FRI...SE winds 15 to 25 kt W of 70W, and E 10 to 20 kt
elsewhere. Seas 4 to 6 ft. 
.FRI NIGHT...SE to S winds 30 to 35 kt W of 75W, and SE winds 25
to 30 kt E of 75W. Seas 9 to 12 ft W of 75W, and 8 to 11 ft E of
75W.
.SAT...Between 67W and 74W, SE to S winds 30 to 35 kt. Seas 9 to
14 ft. E of 67W, SE winds 20 to 30 kt. Seas 8 to 11 ft, except
10 to 15 ft between 70W and 74W. 
.SAT NIGHT...Between 67W and 70W, SE to S winds 30 to 35 kt. 
Seas 10 to 14 ft. Elsewhere, SE to S winds 20 to 30 kt, except 
between 70W and 74W becoming SW to W 10 to 15 kt early in the 
morning. Seas 8 to 12 ft, except 10 to 15 ft between 70W and 72W.
.SUN...SW winds 20 to 30 kt, becoming N 15 to 25 kt in the 
afternoon. Seas 9 to 14 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 10 to 15 ft. 
.MON...N winds 15 to 25 kt. Seas 10 to 15 ft. 
.MON NIGHT...N winds 15 to 25 kt. Seas 12 to 17 ft

Bahamas N of 22N

...GALE WARNING N OF 26N...

.TODAY...E winds less than 10 kt. Seas 3 to 4 ft. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.FRI NIGHT...SE winds 15 to 25 kt, except N of 26N SE to S 25 to
35 kt. Seas 7 to 10 ft. 
.SAT...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...SW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...NW winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...N winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 6 to 8 ft. 

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

.TODAY...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...NE winds 10 to 15 kt. Seas 5 to 7 ft. 
.FRI...E winds 15 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...E winds 20 to 25 kt. Seas 7 to 10 ft. 
.SAT...SE winds 15 to 25 kt. Seas 9 to 11 ft. 
.SAT NIGHT...S winds 15 to 25 kt. Seas 8 to 11 ft.
.SUN...SW winds 15 to 25 kt. Seas 8 to 11 ft. 
.SUN NIGHT...W winds 10 to 20 kt. Seas 8 to 11 ft. 
.MON...NW winds 10 to 20 kt. Seas 8 to 11 ft. 
.MON NIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. 

ATLC waters S of 22N W of 65W

.TODAY...NE winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.FRI NIGHT...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 5 to 7 ft. 
.SUN...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN NIGHT...W winds 10 to 15 kt. Seas 5 to 7 ft. 
.MON...NW winds 10 to 15 kt. Seas 4 to 6 ft. 
.MON NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. 

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

.TODAY...SE winds less than 10 kt. Seas 4 to 6 ft. 
.TONIGHT...Variable winds less than 10 kt, becoming NE 10 kt
after midnight. Seas 5 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 6 to 8 ft. 
.FRI NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...E winds 15 to 20 kt. Seas 7 to 9 ft. 
.SAT NIGHT...E winds 15 kt. Seas 7 to 9 ft. 
.SUN...E winds 15 kt. Seas 7 to 8 ft. 
.SUN NIGHT...SE winds 15 kt. Seas 7 to 8 ft. 
.MON...SE winds 10 to 15 kt. Seas 6 to 7 ft. 
.MON NIGHT...S winds 10 to 20 kt. Seas 6 to 7 ft.