167
FZNT31 KNHC 140312
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1112 PM EDT Wed Aug 13 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...Tropical Storm Erin is near 16.3N 46.6W at 11 PM
EDT, and is moving west at 14 kt. Maximum sustained winds are
45 kt with gusts to 55 kt, and the minimum central pressure is
1002 mb. Erin will move to 16.5N 48.8W Thu morning, 17.2N 51.8W
Thu evening, then strengthen to a hurricane near 18.0N 54.9W Fri
morning. Hurricane Erin will be near 18.9N 57.8W Fri evening,
19.8N 60.6W Sat morning, and 20.6N 62.9W Sat evening. Erin will
change little in intensity as it moves to the north of Puerto
Rico late Sun. Elsewhere, strong winds and rough seas will
continue offshore Colombia and Venezuela through Thu due to a
tight pressure gradient, before diminishing Thu night.

NW Caribbean W of 85W

.OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 20 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less.
.SAT...E winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SUN...NE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.MON...E winds less than 10 kt. Seas 2 ft or less.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and
3 ft elsewhere.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft S of 18N, and 2 ft or
less elsewhere.
.THU NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and
2 ft or less elsewhere.
.FRI...E winds 10 to 20 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 ft.
.SAT...E winds 10 to 20 kt. Seas 3 ft.
.SAT NIGHT...NE winds less than 10 kt S of 18N, and NE 10 to
20 kt elsewhere. Seas 3 ft in the evening, subsiding to 2 ft or
less.
.SUN...NE winds less than 10 kt S of 18N, and NE 10 to 15 kt
elsewhere. Seas 2 ft or less.
.SUN NIGHT...E winds less than 10 kt S of 18N, and NE 10 to
15 kt elsewhere. Seas 2 ft or less.
.MON...E winds less than 10 kt. Seas 2 ft or less.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...E winds 20 to 30 kt within 90 nm of coast of
Colombia, and NE 15 to 25 kt elsewhere. Seas 5 to 7 ft.
.THU...E winds 15 to 25 kt. Seas 5 to 7 ft.
.THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT...Within 90 nm of coast of Colombia, E winds 10 to 15 kt,
diminishing to less than 10 kt in the afternoon. Elsewhere, NE
winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds less than 10 kt. Seas 3 to 4 ft.
.SUN...E winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 ft in the evening,
subsiding to 2 ft or less.
.MON...SE winds less than 10 kt. Seas 2 ft or less.

SW Caribbean S of 11N

.OVERNIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI NIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.SAT...NW winds less than 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...NW winds less than 10 kt. Seas 3 ft.
.SUN...W winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.MON...S winds less than 10 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.OVERNIGHT...E winds 15 to 25 kt Gulf of Venezuela, and E 10 to
20 kt elsewhere. Seas 3 to 4 ft.
.THU...E winds 10 to 20 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.FRI...E winds 10 to 20 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...N winds less than 10 kt Gulf of Venezuela, and E 10 to
15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.
.SAT NIGHT...NE winds less than 10 kt Gulf of Venezuela, and E
10 to 15 kt elsewhere. Seas 3 ft.
.SUN...Gulf of Venezuela, Variable winds less than 10 kt,
becoming W less than 10 kt in the afternoon. Elsewhere, S winds
10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 ft
elsewhere.
.SUN NIGHT...NE winds less than 10 kt Gulf of Venezuela, and S
10 to 15 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
3 ft elsewhere.
.MON...Gulf of Venezuela, Variable winds less than 10 kt,
becoming NW less than 10 kt in the afternoon. Elsewhere, SE
winds 10 to 15 kt. Seas 2 ft or less Gulf of Venezuela, and 3 to
4 ft elsewhere.

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

...HURRICANE WARNING...

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 20 to
30 kt. Seas 4 to 6 ft.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. NE winds 45 to
55 kt, becoming N 65 to 75 kt in the afternoon. Seas 5 to 7 ft.
.FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. NW winds 65 to
75 kt, becoming W 45 to 55 kt after midnight. Seas 5 to 7 ft.
.SAT...HURRICANE CONDITIONS POSSIBLE.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE.
.SUN...TROPICAL STORM CONDITIONS POSSIBLE.
.SUN NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...SE winds 10 to 20 kt. Seas 3 to 5 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...SE winds less than 10 kt, shifting to S in the afternoon.
Seas 3 to 5 ft.
.FRI NIGHT...S winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.SAT...S winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft.

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tropical Storm Erin is near 16.3N 46.6W at 11 PM
EDT, and is moving west at 14 kt. Maximum sustained winds are 45
kt with gusts to 55 kt, and the minimum central pressure is 1002
mb. Erin will move to 16.5N 48.8W Thu morning, 17.2N 51.8W Thu
evening, then strengthen to a hurricane near 18.0N 54.9W Fri
morning. Hurricane Erin will be near 18.9N 57.8W Fri evening,
19.8N 60.6W Sat morning, and 20.6N 62.9W Sat evening. Erin will
change little in intensity as it moves to the north of Puerto
Rico late Sun. Elsewhere, a weak pressure gradient will result in
gentle to moderate winds and mainly slight seas into the
weekend.

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

.OVERNIGHT...S winds 10 to 15 kt. Seas 3 ft.
.THU...SW winds 10 to 15 kt. Seas 3 ft.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 ft.
.FRI...SW winds 10 to 15 kt. Seas 3 ft.
.FRI NIGHT...S winds 10 kt. Seas 3 ft in the evening, subsiding
to 2 ft or less.
.SAT...SW winds 10 kt, shifting to NW in the afternoon. Seas
2 ft or less.
.SAT NIGHT...NE winds less than 10 kt. Seas 2 ft or less.
.SUN...N winds less than 10 kt. Seas 2 ft or less, building to
3 ft in the afternoon.
.SUN NIGHT...NE winds 10 kt. Seas 3 to 4 ft.
.MON...NE winds 10 to 15 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...SE winds less than 10 kt. Seas 3 ft.
.THU...SW winds less than 10 kt. Seas 3 ft.
.THU NIGHT...SE winds less than 10 kt. Seas 3 ft.
.FRI...S winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...SE winds less than 10 kt. Seas 3 ft.
.SAT...E winds less than 10 kt, shifting to N in the afternoon.
Seas 3 to 4 ft.
.SAT NIGHT...NW winds less than 10 kt W of 70W, and NE 10 to
15 kt elsewhere. Seas 3 ft W of 70W, and 4 to 6 ft elsewhere.
.SUN...TROPICAL STORM CONDITIONS POSSIBLE. NW winds less than
10 kt W of 70W, and SE 20 to 25 kt elsewhere.
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE.
.MON...HURRICANE CONDITIONS POSSIBLE.

Bahamas N of 22N

.OVERNIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.THU...E winds less than 10 kt. Seas 2 ft or less.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 2 ft or less.
.FRI NIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.SAT...E winds 10 to 15 kt. Seas 2 ft or less.
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.SUN...E winds 10 to 15 kt. Seas 2 ft or less.
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.MON...TROPICAL STORM CONDITIONS POSSIBLE.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...TROPICAL STORM CONDITIONS POSSIBLE.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE.
.SUN...HURRICANE CONDITIONS POSSIBLE.
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE.
.MON...HURRICANE CONDITIONS POSSIBLE.

ATLC waters S of 22N W of 65W

.OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft.
.SAT...TROPICAL STORM CONDITIONS POSSIBLE.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE.
.SUN...HURRICANE CONDITIONS POSSIBLE.
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE.
.MON...HURRICANE CONDITIONS POSSIBLE.

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

...HURRICANE WARNING...

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.THU...E winds 10 to 20 kt. Seas 5 to 6 ft.
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to
25 kt. Seas 5 to 7 ft.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. NE winds 35 to 45 kt.
Seas 7 to 10 ft.
.FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. NE winds 65 to
75 kt, becoming E 75 to 85 kt after midnight. Seas 8 to 11 ft,
building to 9 to 14 ft after midnight.
.SAT...HURRICANE CONDITIONS POSSIBLE.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE.
.SUN...HURRICANE CONDITIONS POSSIBLE.
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE.
.MON...TROPICAL STORM CONDITIONS POSSIBLE.