Offshore Forecast
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030
FZNT31 KNHC 220247
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1047 PM EDT Thu Sep 21 2017

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...Hurricane Maria is centered at 21.0N 70.2W 955 mb at
11 PM EDT moving NW or 320 degrees at 7 kt. Maximum sustained
winds are 110 kt with gusts to 135 kt. Maria is forecast to
reach near 22.0N 70.8W at 8 AM EDT Fri, weaken to 105 kt gusts
to 130 kt near 23.5N 71.5W at 8 PM EDT Fri, weaken to 100 KT
gusts to 120 kt near 25.1N 72.0W at 8 AM EDT Sat, weaken to
95 kt gusts 115 kt near 26.7N 72.3W at 8 PM EDT Sat, weaken to
90 kt gusts 110 kt near 29.3N 72.1W at 8 PM Sun, then pass
through 31.2N 71.0W at 8 PM EDT Mon. Moderate to locally fresh
trades will return across the area by Sun evening. Strong
nocturnal trades will resume along the NW coast of Venezuela,
along the NE coast of Colombia and across the Gulf of Honduras
on Mon evening.

NW Caribbean W of 85W

.OVERNIGHT...E winds 10 to 15 kt. Seas 3 ft.
.FRI...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft in the morning, subsiding to 2 ft or
less.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, building
to 3 ft after midnight.
.SAT...E winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...E winds 10 kt. Seas 2 ft or less.
.SUN...E winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...E winds 10 to 20 kt. Seas 2 ft or less, building to
3 ft after midnight.
.MON...SE winds 10 to 20 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 15 to 25 kt. Seas 3 to 5 ft.
.TUE...E winds 15 to 25 kt. Seas 4 to 6 ft.

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft S of 18N, and
2 ft or less elsewhere.
.FRI...S of 18N, NW winds less than 10 kt. Elsewhere, NE winds
10 to 15 kt, diminishing to less than 10 kt in the afternoon.
Seas 3 ft in the morning, subsiding to 2 ft or less.
.FRI NIGHT...NE winds less than 10 kt. Seas 2 ft or less.
.SAT...SE winds less than 10 kt. Seas 2 ft or less.
.SAT NIGHT...SE winds less than 10 kt. Seas 2 ft or less.
.SUN...SE winds 10 to 15 kt S of 18N, and SE less than 10 kt
elsewhere. S of 18N, seas 2 ft or less, building to 3 to 4 ft in
the afternoon. Elsewhere, seas 2 ft or less.
.SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and
2 ft or less elsewhere.
.MON...SE winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and 2 ft
or less elsewhere.
.MON NIGHT...E winds 10 to 20 kt. S of 18N, seas 4 to 6 ft.
Elsewhere, seas 2 ft or less, building to 3 ft after midnight.
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 3 ft
elsewhere.

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.FRI...SW winds less than 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NW winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 3 ft.
.SAT...Variable winds less than 10 kt, becoming SE less than
10 kt in the afternoon. Seas 2 ft or less.
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less.
.SUN...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 to
4 ft in the afternoon.
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON...E winds 10 to 20 kt. Seas 3 to 5 ft.
.MON NIGHT...NE winds 10 to 20 kt within 90 nm of coast of
Colombia, and E 15 to 25 kt elsewhere. Seas 4 to 6 ft.
.TUE...E winds 10 to 20 kt within 90 nm of coast of Colombia,
and SE 15 to 25 kt elsewhere. Seas 4 to 6 ft.

SW Caribbean S of 11N

.OVERNIGHT...N winds less than 10 kt. Seas 3 to 5 ft.
.FRI...SW winds less than 10 kt. Seas 3 to 5 ft.
.FRI NIGHT...E 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 ft in the morning, subsiding to
2 ft or less.
.SAT NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 2 ft or less.
.SUN...SE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...S winds less than 10 kt. Seas 2 ft or less.
.MON...S winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...SW winds less than 10 kt. Seas 2 ft or less.
.TUE...W winds less than 10 kt. Seas 2 ft or less.

Caribbean between 64W and 72W

.OVERNIGHT...N winds 10 kt Gulf of Venezuela, and SE 15 to 25 kt
elsewhere. Gulf of Venezuela, seas 3 ft, subsiding to 2 ft or
less. Elsewhere, seas 5 to 7 ft.
.FRI...Variable winds less than 10 kt Gulf of Venezuela, and SE
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
4 to 6 ft elsewhere.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere.
.SAT...Variable winds less than 10 kt Gulf of Venezuela, and SE
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
4 to 6 ft elsewhere.
.SAT NIGHT...NE winds less than 10 kt Gulf of Venezuela, and SE
10 to 20 kt elsewhere. Seas 2 ft or less Gulf of Venezuela, and
4 to 6 ft elsewhere.
.SUN...SE winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere.
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of
Venezuela, and 5 to 7 ft elsewhere.
.MON...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 5 to 7 ft elsewhere.
.MON NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 5 to 7 ft.
.TUE...E winds 10 to 20 kt Gulf of Venezuela, and E 15 to 25 kt
elsewhere. Seas 5 to 7 ft.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft.
.FRI...SE winds 10 to 20 kt. Seas 5 to 7 ft.
.FRI NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.SAT...SE 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 20 kt. Seas 6 to 8 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft.
.FRI...SE 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 5 to 7 ft.
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...E winds 10 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft.
.TUE...E winds 10 to 20 kt. Seas 6 to 8 ft.

SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS

.SYNOPSIS...Hurricane Maria is centered at 21.0N 70.2W 955 mb at
11 PM EDT moving NW or 320 degrees at 7 kt. Maximum sustained
winds are 110 kt with gusts to 135 kt. Maria is forecast to reach
near 22.0N 70.8W at 8 AM EDT FRI, weaken to 105 kt gusts to 130
kt near 23.5N 71.5W at 8 PM EDT Fri, weaken to 100 KT gusts to
120 kt near 25.1N 72.0W at 8 AM EDT Sat, weaken to 95 kt gusts
115 kt near 26.7N 72.3W at 8 PM EDT Sat, weaken to 90 kt gusts
110 kt near 29.3N 72.1W at 8 PM Sun, then pass north of the area
near 31.2N 71.0W at 8 PM EDT Mon.

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

.OVERNIGHT...E winds 10 to 15 kt. Seas 6 to 9 ft.
.FRI...NE winds 10 to 15 kt. Seas 8 to 11 ft.
.FRI NIGHT...NE winds 10 to 20 kt. Seas 9 to 14 ft.
.SAT...NE winds 10 to 20 kt. Seas 11 to 16 ft.
.SAT NIGHT...NE winds 10 to 20 kt. Seas 12 to 17 ft.
.SUN...N winds 10 to 20 kt. Seas 11 to 16 ft.
.SUN NIGHT...N winds 10 to 20 kt. Seas 11 to 14 ft.
.MON...N winds 10 to 20 kt. Seas 8 to 13 ft.
.MON NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft.
.TUE...NW winds 10 to 20 kt. Seas 7 to 10 ft.

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

...HURRICANE WARNING...

.OVERNIGHT...E winds 10 to 15 kt. Seas 9 to 12 ft.
.FRI...E winds 10 to 15 kt. Seas 11 to 16 ft W of 70W, and 9 to
13 ft elsewhere.
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. W of 70W, NE
winds 10 to 20 kt, increasing to 20 to 30 kt after midnight.
Elsewhere, E winds 15 to 25 kt. Seas 14 to 19 ft W of 70W, and
10 to 15 ft elsewhere.
.SAT...TROPICAL STORM CONDITIONS EXPECTED. W of 70W, NE winds
30 to 40 kt, increasing to 45 to 55 kt in the afternoon,Seas
17 to 22 ft, building to 18 to 28 ft in the afternoon.
Elsewhere, SE winds 25 to 35 kt,Seas 12 to 17 ft.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE. NE winds 75 to
85 kt W of 70W, and SE 30 to 40 kt elsewhere. Seas 22 to 32 ft W
of 70W, and 13 to 18 ft elsewhere.
.SUN...HURRICANE CONDITIONS POSSIBLE.
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE.
.MON...HURRICANE CONDITIONS POSSIBLE.
.MON NIGHT...HURRICANE CONDITIONS POSSIBLE.
.TUE...HURRICANE CONDITIONS POSSIBLE.

Bahamas N of 22N

...TROPICAL STORM WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 20 to
30 kt. Seas 4 to 6 ft.
.FRI...TROPICAL STORM CONDITIONS EXPECTED. NE winds 35 to
45 kt. Seas 6 to 9 ft.
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 30 to
40 kt. Seas 7 to 10 ft.
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 20 to 30 kt.
Seas 7 to 10 ft.
.SAT NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. N winds 20 to
30 kt. Seas 6 to 9 ft.
.SUN...NW winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...NW winds 10 to 20 kt. Seas 5 to 7 ft.
.MON...W winds 10 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...N winds 10 to 15 kt. Seas 3 to 4 ft.

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

...HURRICANE WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS. W of 70W, NE winds
50 to 60 kt, becoming E 60 to 70 kt after midnight,Seas 16 to
21 ft, building to 15 to 25 ft after midnight. Elsewhere, E
winds 50 to 65 kt,Seas 14 to 19 ft.
.FRI...HURRICANE CONDITIONS EXPECTED. W of 70W, NE winds 75 to
95 kt. Elsewhere, E winds 60 to 70 kt, becoming SE 45 to 55 kt
in the afternoon. Seas 21 to 31 ft W of 70W, and 15 to 20 ft
elsewhere.
.FRI NIGHT...HURRICANE CONDITIONS EXPECTED. NE winds 75 to
95 kt W of 70W, and SE 40 to 50 kt elsewhere. Seas 23 to 33 ft W
of 70W, and 13 to 18 ft elsewhere.
.SAT...HURRICANE CONDITIONS EXPECTED. W of 70W, N winds 80 to
90 kt, shifting to W in the afternoon. Elsewhere, SE winds 30 to
40 kt. Seas 23 to 33 ft W of 70W, and 12 to 17 ft elsewhere.
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE. SW winds 75 to
85 kt W of 70W, and SE 30 to 40 kt elsewhere. W of 70W, seas
20 to 30 ft, subsiding to 16 to 26 ft after midnight. Elsewhere,
seas 10 to 15 ft.
.SUN...HURRICANE CONDITIONS POSSIBLE.
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.MON...TROPICAL STORM CONDITIONS POSSIBLE.
.MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE.
.TUE...S winds 10 to 20 kt. Seas 6 to 8 ft.

ATLC waters S of 22N W of 65W

...HURRICANE WARNING...

.OVERNIGHT...HURRICANE CONDITIONS. E winds 85 to 95 kt. Seas
16 to 21 ft.
.FRI...HURRICANE CONDITIONS EXPECTED. S winds 80 to 95 kt. Seas
11 to 16 ft.
.FRI NIGHT...TROPICAL STORM CONDITIONS EXPECTED. S winds 30 to
40 kt, becoming SW 20 to 30 kt after midnight. Seas 8 to 13 ft.
.SAT...SW winds 20 to 30 kt. Seas 7 to 10 ft.
.SAT NIGHT...S winds 10 to 20 kt. Seas 6 to 9 ft.
.SUN...S winds 10 to 20 kt. Seas 6 to 8 ft.
.SUN NIGHT...S winds 10 to 15 kt. Seas 6 to 8 ft.
.MON...S winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE...SE winds 10 to 15 kt. Seas 4 to 6 ft.

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 7 to 10 ft.
.FRI...SE winds 10 to 20 kt. Seas 6 to 9 ft.
.FRI NIGHT...SE winds 10 to 20 kt. Seas 7 to 9 ft.
.SAT...SE winds 10 to 20 kt. Seas 7 to 8 ft.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft.
.SUN...SE winds 10 to 15 kt. Seas 7 to 8 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft.
.MON...SE winds 10 to 15 kt. Seas 7 to 8 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 7 to 8 ft.
.TUE...E winds 10 to 15 kt. Seas 6 to 8 ft.



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