000
FZNT32 KNHC 181519
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1119 AM EDT Fri Aug 18 2023

Marine Weather HF Voice Broadcast for the Gulf of Mexico

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 the Gulf of Mexico

.SYNOPSIS...A surface ridge over the Gulf waters will support
mostly gentle to moderate winds and slight seas across the basin
through Sat night. Looking ahead, a surface trough is expected
to move across the Gulf from east to west Sun through early next
week. The trough could form into a broad area of low pressure in
the central or W Gulf by the beginning of next week. Some slow
development of this system is possible thereafter as it moves
westward and approaches the western Gulf of Mexico coastline by
the middle of next week. 

Gulf of Mexico N of 26N W of 87W

.THIS AFTERNOON...W winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...Variable winds less than 10 kt, becoming S less than
10 kt after midnight. Seas 2 ft or less. 
.SAT...W winds less than 10 kt, shifting to N in the afternoon.
Seas 2 ft or less. 
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.SUN...E winds less than 10 kt, shifting to NE in the afternoon.
Seas 2 ft or less. 
.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...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.TUE...E winds 15 to 25 kt. Seas 6 to 9 ft. 
.TUE NIGHT...E winds 10 to 20 kt. Seas 6 to 8 ft. 

Gulf of Mexico from 22N to 26N W of 87W

.THIS AFTERNOON...S winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...E winds less than 10 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, building to
3 ft in the afternoon. 
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...NE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 4 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. 

SW Gulf of Mexico S of 22N W of 87W

.THIS AFTERNOON...E winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.SAT...Within 60 nm of coast of Veracruz, E winds less than
10 kt. Elsewhere, E winds 10 to 15 kt, diminishing to less than
10 kt in the afternoon. Seas 2 ft or less. 
.SAT NIGHT...Within 60 nm of coast of Veracruz, E winds less
than 10 kt. Elsewhere, NE winds less than 10 kt, increasing to
10 to 15 kt after midnight. Seas 2 ft or less, building to 3 ft
after midnight. 
.SUN...NE winds less than 10 kt. Seas 2 ft or less.
.SUN NIGHT...N winds 10 to 15 kt, shifting to NE after midnight.
Seas 2 ft or less. 
.MON...N winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.TUE...NE winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 ft. 

Gulf of Mexico E of 87W

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or
less. 
.TONIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.SAT...NE winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...NE winds less than 10 kt, shifting to E after
midnight. Seas 2 ft or less. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 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 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 15 kt. Seas 4 to 6 ft.