138
FZNT31 KNHC 302007
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
407 PM EDT Mon Jun 30 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...The pressure gradient between the Bermuda High and
lower pressure across NW Colombia and the SW Caribbean will
support fresh to strong trades and rough seas across most of the
central and SW Caribbean through Wed, then diminish N of 15N
into the upcoming weekend. Winds will pulse at night to
near-gale force off Colombia and in the Gulf of Venezuela into
Wed.

NW Caribbean W of 85W

.TONIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Caribbean N of 15N between 72W and 85W

.TONIGHT...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 3 to 5 ft elsewhere.
.TUE...E winds 15 to 25 kt S of 18N, and E 10 to 15 kt
elsewhere. Seas 7 to 10 ft S of 18N, and 3 to 5 ft elsewhere.
.TUE NIGHT...S of 18N, E winds 10 to 20 kt. Elsewhere, E winds
10 to 15 kt, diminishing to less than 10 kt after midnight. Seas
7 to 10 ft S of 18N, and 4 to 6 ft elsewhere.
.WED...E winds 10 to 20 kt. Seas 6 to 9 ft S of 18N, and 4 to
6 ft elsewhere.
.WED NIGHT...E winds 10 to 15 kt. Seas 5 to 7 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 4 to 6 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 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.
.TUE...E winds 20 to 30 kt. Seas 8 to 13 ft.
.TUE NIGHT...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.
.WED...E winds 15 to 25 kt. Seas 8 to 12 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.THU...E winds 10 to 20 kt. Seas 6 to 9 ft.
.THU NIGHT...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...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.

SW Caribbean S of 11N

.TONIGHT...NE winds 10 to 15 kt. Seas 6 to 9 ft.
.TUE...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 7 to 10 ft.
.TUE NIGHT...N winds less than 10 kt, shifting to NE after
midnight. Seas 7 to 10 ft.
.WED...E winds 10 to 15 kt. Seas 7 to 10 ft.
.WED NIGHT...NE winds less than 10 kt. Seas 6 to 9 ft.
.THU...E winds less than 10 kt, shifting to N in the afternoon.
Seas 6 to 8 ft.
.THU NIGHT...NE winds less than 10 kt. Seas 5 to 7 ft.
.FRI...SE winds less than 10 kt in the morning, becoming
variable winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft.
.SAT...SW winds less than 10 kt. Seas 4 to 5 ft.
.SAT NIGHT...Variable winds less than 10 kt. Seas 3 to 5 ft.

Caribbean between 64W and 72W

.TONIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 5 to 7 ft Gulf of Venezuela, and 7 to
10 ft elsewhere.
.TUE...E winds 20 to 25 kt Gulf of Venezuela, and E 10 to 20 kt
elsewhere. Seas 4 to 6 ft Gulf of Venezuela, and 7 to 10 ft
elsewhere.
.TUE NIGHT...E winds 20 to 30 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 6 to 8 ft.
.WED...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 6 to 8 ft elsewhere.
.WED NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.FRI...E winds 10 to 20 kt. Seas 6 to 8 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 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 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...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 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.

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

.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...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 4 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...The Bermuda High is expected to maintain a ridge W
to E along about 30N through Wed, then begin to drift eastward
and weaken modestly through late week. Moderate to fresh E to SE
winds and moderate seas will prevail S of 25N through Thu. Fresh
to locally strong E winds will pulse from late afternoon into the
overnight hours N of Hispaniola through the period. Gentle to
moderate winds and slight to moderate seas are expected
elsewhere. A weak cold front is forecast to move off the SE U.S.
coast and into the NW zones early Fri, then stall there through
Sat. Low pressure may form along the front during this time.

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

.TONIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...S winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...S winds 10 to 15 kt. Seas 4 to 5 ft.
.WED NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...SW winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...SW winds 10 kt. Seas 3 to 5 ft.
.FRI...S winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...S winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 to 4 ft.
.SAT...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 3 to 5 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft.

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

.TONIGHT...S winds 10 to 15 kt W of 70W, and SE less than 10 kt
elsewhere. Seas 3 to 5 ft.
.TUE...SE winds less than 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...S winds 10 to 15 kt W of 70W, and SE less than
10 kt elsewhere. Seas 4 to 5 ft.
.WED...S winds 10 to 15 kt. Seas 4 to 5 ft.
.WED NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...S winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...S winds less than 10 kt. Seas 4 to 6 ft.
.FRI NIGHT...S winds less than 10 kt. Seas 4 to 5 ft.
.SAT...S winds 10 kt. Seas 4 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 4 ft.

Bahamas N of 22N

.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft.
.THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 ft.
.SAT...SE winds less than 10 kt. Seas 3 ft.
.SAT NIGHT...SE winds less than 10 kt. Seas 3 ft.

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

.TONIGHT...SE winds 10 to 15 kt. Seas 5 to 6 ft.
.TUE...E winds 10 to 15 kt. Seas 5 to 6 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED...SE winds 10 to 15 kt. 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 5 to 6 ft.
.THU NIGHT...SE winds 10 kt. Seas 4 to 6 ft.
.FRI...SE winds 10 kt. Seas 4 to 5 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 4 to 5 ft.
.SAT...SE winds 10 kt. Seas 4 ft.
.SAT NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 4 ft.

ATLC waters S of 22N W of 65W

.TONIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED...E winds 10 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

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

.TONIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 7 ft.
.TUE NIGHT...E winds 15 to 20 kt. Seas 6 to 7 ft.
.WED...E winds 10 to 15 kt. Seas 6 to 7 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 6 ft.
.THU...E winds 10 to 15 kt. Seas 5 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI NIGHT...E winds 10 kt. Seas 5 to 6 ft.
.SAT...E winds 10 to 15 kt. Seas 5 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft.