000
FZNT31 KNHC 012102
OFFN20

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
502 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 near 25.1N 78.7W 
993 mb at 5 PM EDT moving NW at 9 kt. Maximum sustained winds 60 
kt gusts 75 kt. Isaias will strengthen to a hurricane tonight 
while moving away from the region toward 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

.TONIGHT...NE winds 10 to 20 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...NE winds less than 10 kt, shifting to E after
midnight. Seas 2 ft or less. 
.MON...SE winds less than 10 kt. Seas 2 ft or less.
.MON NIGHT...E winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. 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

.TONIGHT...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

.TONIGHT...NE winds 15 to 25 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

.TONIGHT...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...NW 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

.TONIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft Gulf of
Venezuela, and 4 to 6 ft elsewhere. 
.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, shifting to S
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, shifting to W 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. 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

.TONIGHT...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

.TONIGHT...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 near 25.1N 78.7W 
993 mb at 5 PM EDT moving NW at 9 kt. Maximum sustained winds 60 
kt gusts 75 kt. Isaias will strengthen to a hurricane while it 
moves near the east coast of the Florida peninsula to 26.1N 79.4W
Sun morning and to 27.4N 80.1W Sun afternoon. Isaias will weaken
to a tropical storm near 28.8N 80.7W Mon morning, accelerate 
northward and move to near 30.7N 80.6W Mon afternoon, then pass N
of the waters to 33.4N 79.1W Tue morning. Large seas will 
persist tonight near and offshore of the Bahamas, then spread 
northward across the waters W of 75W through Mon. Winds and seas 
will diminish Tue through Thu as Isaias moves away from the 
region.

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

...TROPICAL STORM WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS. E winds 20 to 30 kt,
increasing to 30 to 40 kt after midnight. Seas 8 to 13 ft. 
.SUN...TROPICAL STORM CONDITIONS EXPECTED. SE winds 35 to
45 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 12 to 17 ft, subsiding to 8 to 13 ft in the afternoon. 
.MON NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. S winds 40 to
50 kt, diminishing to 20 to 30 kt after midnight. Seas 7 to
10 ft. 
.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

.TONIGHT...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 8 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 8 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 5 to 7 ft. 
.TUE...SE winds 15 to 25 kt W of 70W, and SE 10 to 20 kt
elsewhere. 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. 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

...HURRICANE WARNING...

.TONIGHT...TROPICAL STORM CONDITIONS. SE winds 50 to 65 kt.
Seas 8 to 16 ft N of 24N, and 4 to 8 ft elsewhere.
.SUN...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 45 to
55 kt, diminishing to 25 to 35 kt in the afternoon. Seas 6 to 10
ft, subsiding to 4 to 6 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

.TONIGHT...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...E winds 15 to 25 kt. 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

.TONIGHT...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

.TONIGHT...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.