914
FZNT31 KNHC 031346
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
946 AM EDT Thu Apr 3 2025

Marine Weather HF Voice Broadcast for the Tropical N Atlantic
from 07N to 19N W of 55W, the N Atlantic from 19N to
31N W of 55W including the 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 W of 55W

.SYNOPSIS...A strong pressure gradient from the Bermuda High to
the Colombian Low will continue to produce fresh to strong
trades across the Caribbean through Sat morning with near gales
just north of Colombia. From Sat through early next week, the
Bermuda High weakens leading toward reduced winds. However,
strong trades will still continue north of Colombia, south of
Hispaniola and over the Gulf of Honduras on Sat and Sun. Looking
ahead to Mon, as the weakened Bermuda High shifts eastward,
trades across the Caribbean will be reduced to only moderate to
fresh.

NW Caribbean W of 85W

.TONIGHT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI...SE winds 15 to 25 kt. Seas 6 to 9 ft.
.FRI NIGHT AND SAT...SE winds 15 to 25 kt. Seas 7 to 10 ft.
.SAT THROUGH MON...SE winds 15 to 25 kt. Seas 6 to 9 ft.
.TUE...N 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 E 10 to 20 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 5 to 7 ft elsewhere.
.FRI...E winds 15 to 25 kt S of 18N, and E 10 to 20 kt
elsewhere. Seas 8 to 11 ft S of 18N, and 6 to 9 ft elsewhere.
.FRI NIGHT AND SAT...E winds 15 to 25 kt S of 18N, and E 10 to
20 kt elsewhere. Seas 7 to 10 ft.
.SAT THROUGH TUE...E 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 7 to 10 ft.
.FRI...E winds 20 to 30 kt within 90 nm of coast of Colombia,
and E 15 to 25 kt elsewhere. Seas 8 to 13 ft.
.FRI NIGHT AND SAT...E winds 20 to 30 kt within 90 nm of coast
of Colombia, and E 15 to 25 kt elsewhere. Seas 8 to 12 ft.
.SAT THROUGH TUE...NE winds 15 to 25 kt. Seas 7 to 10 ft.

SW Caribbean S of 11N

.TONIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI...E winds 10 to 20 kt. Seas 8 to 11 ft.
.FRI NIGHT AND SAT...NE winds 10 to 20 kt. Seas 8 to 12 ft.
.SAT THROUGH TUE...NE winds 10 to 20 kt. Seas 6 to 9 ft.

Caribbean between 64W and 72W

.TONIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of
Venezuela, and 8 to 11 ft elsewhere.
.FRI...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of Venezuela,
and 8 to 11 ft elsewhere.
.FRI NIGHT AND SAT...E winds 15 to 25 kt. Seas 4 to 6 ft Gulf of
Venezuela, and 7 to 10 ft elsewhere.
.SAT THROUGH TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.

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

.TONIGHT...NE winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI...E winds 15 to 25 kt. Seas 8 to 11 ft.
.FRI NIGHT AND SAT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT THROUGH TUE...E winds 10 to 15 kt. Seas 6 to 8 ft.

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

.TONIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI...E winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT AND SAT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.SAT THROUGH TUE...E winds 10 to 15 kt. Seas 6 to 9 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...A strong Bermuda High will continue to force fresh
to strong trades south of 25N through Fri night. As the Bermuda
High weakens on Sat through early next week, fresh to strong
trades will be restricted to near the SE Bahamas and the Windward
Passage. Beginning Sat night, a large N swell will start
impacting the zones east of 65W and will continue through at
least Mon. Looking ahead, fresh to locally strong S winds are
slated to develop off the coast of N Florida on Sun ahead of a
cold front moving through the SE United States. The cold front is
forecast to move off of the coast early next week.

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

.TONIGHT...SE winds 10 to 20 kt. Seas 5 to 6 ft.
.FRI...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI NIGHT AND SAT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.SAT THROUGH MON...SW winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...N winds 10 to 15 kt. Seas 5 to 7 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...W of 70W, SE winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Elsewhere, E winds less than 10 kt in
the morning, becoming variable winds less than 10 kt. Seas 4 to
6 ft.
.FRI NIGHT AND SAT...E winds less than 10 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN THROUGH TUE...SW winds 10 to 20 kt. Seas 4 to 6 ft.

Bahamas N of 22N

.TONIGHT...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 AND SAT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT THROUGH TUE...S winds 10 to 20 kt. Seas 4 to 6 ft.

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

.TONIGHT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT AND SAT...E winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT THROUGH TUE...SE winds 10 to 15 kt. Seas 5 to 7 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 15 to 25 kt. Seas 7 to 10 ft.
.FRI...E winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT AND SAT...E winds 15 to 25 kt. Seas 6 to 9 ft.
.SAT THROUGH TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.

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

.TONIGHT...NE winds 15 to 25 kt. Seas 8 to 10 ft.
.FRI...E winds 15 to 20 kt. Seas 7 to 10 ft.
.FRI NIGHT AND SAT...NE winds 10 to 20 kt. Seas 6 to 9 ft.
.SAT THROUGH TUE...E winds 10 to 15 kt. Seas 7 to 10 ft.