000
FZNT32 KNHC 201503
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1103 AM EDT Thu Jul 20 2017

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...Weak high pressure will persist across the northern
Gulf through Sat, then the ridge will build westward on Sun. A
thermal trough will develop in the Yucatan Peninsula each evening
before pushing offshore into the SW Gulf each night. The trough 
will drift westward during the overnight hours, and dissipate in 
the SW Gulf each morning. 

Gulf of Mexico N of 26N W of 87W

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or
less. 
.TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less. 
.FRI...Variable winds less than 10 kt. Seas 2 ft or less. 
.FRI NIGHT...Variable winds less than 10 kt, becoming S 10 kt
after midnight. Seas 2 ft or less. 
.SAT...S winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...S winds less than 10 kt. Seas 2 ft or less. 
.SUN...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft. 
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 ft. 
.MON...S winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 3 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 ft. 

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

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or
less. 
.TONIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.FRI...SE winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.SAT...SE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 ft. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 5 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 less than 10 kt Within 60 nm of coast of
Veracruz, and NE 10 to 15 kt elsewhere. Seas 2 ft or less,
building to 3 ft after midnight. 
.FRI...Within 60 nm of coast of Veracruz, E winds less than
10 kt. Elsewhere, E winds 10 to 15 kt, shifting to SE in the
afternoon. Seas 3 ft in the morning, subsiding to 2 ft or less. 
.FRI NIGHT...E winds less than 10 kt Within 60 nm of coast of
Veracruz, and E 10 to 15 kt elsewhere. Seas 2 ft or less,
building to 3 ft after midnight. 
.SAT...SE winds 10 to 15 kt. Seas 3 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 

Gulf of Mexico E of 87W

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or
less. 
.TONIGHT...Variable winds less than 10 kt. Seas 2 ft or less. 
.FRI...Variable winds less than 10 kt. Seas 2 ft or less. 
.FRI NIGHT...Variable winds less than 10 kt, becoming SE less
than 10 kt after midnight. 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 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. 
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less.