000
FZNT31 KNHC 020251
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1051 PM EDT Sat Aug 1 2020

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...Tropical Storm Isaias is centered across the NW
Bahamas near 25.5N 79.1W 993 mb at 11 PM EDT moving NW at 8 kt.
Maximum sustained winds 60 kt gusts 75 kt. Isaias will
strengthen to a hurricane overnight while moving N-NW and away
from the region and very near to along the east coast of
Florida. Fresh trade winds will persist over the central
Caribbean waters through the middle of next week. A tropical
wave will bring increased winds and seas to the Tropical N
Atlantic waters N of 15N and E of 60W tonight through Sun. 

NW Caribbean W of 85W

.OVERNIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 to 4 ft. 
.SUN NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.MON...SE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.TUE...E winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.WED...E winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 to 4 ft after midnight. 
.THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. 

Caribbean N of 15N between 72W and 85W

.OVERNIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft S of 18N, and
2 ft or less elsewhere. 
.MON...E 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. Seas 4 to 6 ft S of 18N, and
2 ft or less elsewhere. 
.TUE...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 2 ft or
less elsewhere. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and
3 ft elsewhere. 
.WED...E winds 10 to 20 kt. Seas 4 to 6 ft S of 18N, and 3 to
4 ft elsewhere. 
.WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft S of 18N, and 3 to
5 ft elsewhere. 

Caribbean from 11N to 15N W of 72W

.OVERNIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 20 kt. Seas 4 to 6 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 20 kt. Seas 4 to 6 ft. 
.THU...E winds 10 to 20 kt. Seas 5 to 7 ft. 

SW Caribbean S of 11N

.OVERNIGHT...N winds less than 10 kt, shifting to NE after
midnight. Seas 3 to 4 ft. 
.SUN...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...N winds less than 10 kt. Seas 3 to 4 ft. 
.TUE...NE winds less than 10 kt, shifting to W in the afternoon.
Seas 3 to 4 ft. 
.TUE NIGHT...Variable winds less than 10 kt. Seas 3 ft. 
.WED...Variable winds less than 10 kt. Seas 3 ft. 
.WED NIGHT...Variable winds less than 10 kt. Seas 3 ft. 
.THU...NW winds less than 10 kt. Seas 3 to 4 ft. 

Caribbean between 64W and 72W

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere. 
.SUN NIGHT...NE winds 10 to 20 kt Gulf of Venezuela, and E 15 to
25 kt elsewhere. Seas 3 to 5 ft Gulf of Venezuela, and 4 to 6 ft
elsewhere. 
.MON...Gulf of Venezuela, E winds 10 to 20 kt, becoming S less
than 10 kt in the afternoon,Seas 3 ft in the morning, subsiding
to 2 ft or less. Elsewhere, SE winds 15 to 25 kt,Seas 4 to 6 ft.
.MON NIGHT...E winds 10 to 20 kt. Seas 2 ft or less Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.TUE...Gulf of Venezuela, S winds 10 to 15 kt, diminishing to
less than 10 kt in the afternoon. Elsewhere, E winds 10 to
20 kt. Seas 2 ft or less Gulf of Venezuela, and 5 to 7 ft
elsewhere. 
.TUE NIGHT...E winds 10 to 20 kt. Gulf of Venezuela, seas 2 ft
or less, building to 3 ft after midnight. Elsewhere, seas 5 to
7 ft. 
.WED...E winds 10 to 20 kt. Seas 3 ft Gulf of Venezuela, and
5 to 7 ft elsewhere. 
.WED NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of Venezuela,
and 4 to 6 ft elsewhere. 

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE...E winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 4 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. 
.SUN...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds 10 to 15 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. 
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 5 ft. 

Synopsis for the the SW N Atlantic including the Bahamas

.SYNOPSIS...Tropical Storm Isaias is centered across the NW
Bahamas near 25.5N 79.1W 993 mb at 11 PM EDT moving NW at 8 kt.
Maximum sustained winds 60 kt gusts 75 kt. Isaias will begin to
more more N-NW overnight and strengthen to a hurricane as it
moves along and very near the east coast of Florida, reaching
near 26.6N 79.9W Sun morning, near 28.0N 80.5W Sun evening
afternoon. Isaias will weaken to a tropical storm near 29.7N
80.8W Mon morning and accelerate northward and move to near
32.0N 80.0W Mon evening, and exit the area waters Tue. Large 
seas will persist tonight near and offshore of the Bahamas, then 
spread northward across the waters W of 75W through Mon. Low 
pressure developing along the N portion of a tropical wave is 
expected to become better organized as it approaches the SE 
waters Sun night and could become the next tropical cyclone early
this week as it moves NW across the outer waters. 

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

...TROPICAL STORM WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to
35 kt. Seas 8 to 13 ft. 
.SUN...TROPICAL STORM CONDITIONS EXPECTED. SE winds 30 to
40 kt. Seas 10 to 15 ft. 
.SUN NIGHT...TROPICAL STORM CONDITIONS EXPECTED. SE winds 30 to
40 kt. Seas 11 to 16 ft. 
.MON...TROPICAL STORM CONDITIONS EXPECTED. S winds 45 to 55 kt.
Seas 11 to 16 ft. 
.MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S winds 35 to
45 kt, diminishing to 20 to 30 kt after midnight. Seas 8 to
13 ft, subsiding to 7 to 10 ft after midnight. 
.TUE...S winds 15 to 25 kt. Seas 6 to 8 ft. 
.TUE NIGHT...S winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 4 to 5 ft. 
.WED NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. 
.THU...S winds less than 10 kt. Seas 3 to 4 ft. 

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

.OVERNIGHT...SE winds 15 to 25 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 5 to 6 ft elsewhere. 
.SUN...SE winds 15 to 25 kt W of 70W, and SE 10 to 15 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 4 to 5 ft elsewhere. 
.SUN NIGHT...SE winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 4 to 6 ft elsewhere. 
.MON...SE winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 6 to 9 ft W of 70W, and 4 to 5 ft elsewhere. 
.MON NIGHT...SE winds 15 to 25 kt W of 70W, and E 10 to 15 kt
elsewhere. Seas 6 to 8 ft W of 70W, and 4 to 6 ft elsewhere. 
.TUE...W of 70W, SE winds 15 to 25 kt, diminishing to 10 to
15 kt in the afternoon. Elsewhere, SE winds 10 to 20 kt. Seas
5 to 7 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...W of 70W, S winds less than 10 kt. Elsewhere, S winds
10 to 15 kt, diminishing to less than 10 kt in the afternoon.
Seas 4 to 5 ft. 
.WED NIGHT...S winds less than 10 kt. Seas 3 to 4 ft. 
.THU...SW winds less than 10 kt. Seas 3 to 4 ft. 

Bahamas N of 22N

...TROPICAL STORM WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS. SE winds 50 to 60 kt.
Seas 6 to 8 ft. 
.SUN...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 40 to
50 kt, diminishing to 20 to 30 kt in the afternoon. Seas 5 to
7 ft. 
.SUN NIGHT...SE winds 15 to 25 kt. Seas 3 to 5 ft. 
.MON...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 ft. 
.THU...SE winds 10 to 15 kt. Seas 3 ft. 

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

.OVERNIGHT...SE winds 15 to 25 kt W of 70W, and E 10 to 20 kt
elsewhere. Seas 6 to 8 ft. 
.SUN...SE winds 15 to 25 kt W of 70W, and E 10 to 20 kt
elsewhere. Seas 6 to 7 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 6 to 7 ft. 
.MON...SE winds 10 to 20 kt W of 70W, and E 15 to 25 kt
elsewhere. Seas 6 to 8 ft. 
.MON NIGHT...SE winds 10 to 20 kt W of 70W, and E 15 to 25 kt
elsewhere. Seas 5 to 6 ft W of 70W, and 6 to 9 ft elsewhere. 
.TUE...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.WED...SE winds 10 to 15 kt. Seas 4 to 5 ft. 
.WED NIGHT...SE winds 10 to 15 kt W of 70W, and E less than
10 kt elsewhere. Seas 3 to 4 ft. 
.THU...SE winds 10 to 15 kt. Seas 3 to 4 ft. 

ATLC waters S of 22N W of 65W

.OVERNIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.WED...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.WED NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.THU...E winds 10 to 20 kt. Seas 3 to 4 ft. 

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

.OVERNIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SUN...E winds 10 to 20 kt. Seas 6 to 8 ft. 
.SUN NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.MON...SE winds 15 to 25 kt. Seas 6 to 8 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE...E winds 10 to 15 kt. Seas 5 to 6 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.WED...E winds 10 to 15 kt. Seas 4 to 5 ft. 
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.THU...E winds 10 to 15 kt. Seas 3 to 4 ft.