000
FZNT32 KNHC 211309
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
909 AM EDT Sun May 21 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...Weak high pressure will dominate the Gulf of Mexico
through early week, inducing light to gentle winds and slight
seas. A diurnal trough will move offshore each night W of the
Yucatan Peninsula, with moderate N to NE winds ahead of it. A
weak frontal trough will sink into the northern Gulf Wed and
move southward, and gradually produce gentle to moderate N to NE
winds across the entire basin. Popocatepetl Volcano in Mexico
near 19N98.6W has produced 2 large eruptions overnight, with ash
moving ENE away from the volcano. Ash aloft has recently moved
over water and may be reaching the surface S of 21N and W of 96W
in the far SW Gulf of Mexico. Visibility may be restricted in
this area due to volcanic ashfall. Mariners should exercise
caution. 

Gulf of Mexico N of 26N W of 87W

.THIS AFTERNOON...Variable winds less than 10 kt. Seas 2 ft or
less. 
.TONIGHT...N winds 10 kt in the evening, becoming variable winds
less than 10 kt. Seas 2 ft or less. 
.MON...Variable winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...Variable winds less than 10 kt. Seas 2 ft or less. 
.TUE...Variable winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.WED...NE winds less than 10 kt. Seas 2 ft or less, building to
3 ft in the afternoon. 
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 ft. 
.THU...NE winds 10 to 15 kt. Seas 3 ft. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 ft. 

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

.THIS AFTERNOON...N winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.MON...Variable winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.TUE...Variable winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.WED...NE winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.THU...NE winds less than 10 kt. Seas 3 ft. 
.THU NIGHT...NE winds less than 10 kt. Seas 3 ft. 

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

.THIS AFTERNOON...N winds 10 to 15 kt within 60 nm of coast of
Veracruz, and N less than 10 kt elsewhere. Seas 3 ft. Volcanic ash
possibly restricting visibility.
.TONIGHT...Within 60 nm of coast of Veracruz, N winds 10 to
15 kt, shifting to NE after midnight. Elsewhere, NE winds 10 to
15 kt. Seas 3 ft. 
.MON...N winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.MON NIGHT...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. 
.TUE...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.WED...NE winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. 
.THU...NE winds less than 10 kt. Seas 2 ft or less. 
.THU NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. 

Gulf of Mexico E of 87W

.THIS AFTERNOON...N winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.MON...Variable winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.TUE...Variable winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...N winds 10 kt. Seas 2 ft or less. 
.WED...N winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.THU NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft.