817 
FZNT32 KNHC 210841
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
341 AM EST Thu Jan 21 2021

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...High pressure over the northeast Gulf will shift
southeast today to the Bahamas. A trailing surface ridge will 
move into the southern Gulf through Fri ahead of a cold front 
moving into the northern Gulf by late Fri. The front will stall 
across the northern Gulf Fri night, then dissipate through Sat 
night. High pressure building north of front over the Carolinas 
will support increase SE winds and building seas across the 
western Gulf Sat into Sun, with strong SE winds possible in the 
northwest Gulf by Sun night as low pressure forms over northern 
Mexico. Winds and seas diminish across the Gulf into Mon as the 
high shifts farther east and a weak cold front moves into the 
coastal waters of Texas through Mon night. 

Gulf of Mexico N of 26N W of 87W

.TODAY...S winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 ft. 
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. 
.FRI NIGHT...S winds less than 10 kt. Seas 3 ft. 
.SAT...SE winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...S winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...S winds 10 to 20 kt. Seas 5 to 7 ft. 
.MON NIGHT...S winds 10 to 15 kt, diminishing to less than 10 kt
after midnight. Seas 4 to 5 ft. 

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

.TODAY...SE winds less than 10 kt, increasing to 10 to 15 kt in
the afternoon. Seas 3 to 5 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI...S winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft. 
.FRI NIGHT...SE winds less than 10 kt. Seas 3 ft.
.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 4 to 6 ft. 
.MON...S winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 4 to 5 ft. 

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

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

Gulf of Mexico E of 87W

.TODAY...SE winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.TONIGHT...S winds less than 10 kt. Seas 2 ft or less. 
.FRI...SW winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...W winds less than 10 kt in the evening, becoming
variable winds less than 10 kt. Seas 2 ft or less. 
.SAT...Variable winds less than 10 kt. Seas 2 ft or less. 
.SAT NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.SUN...SE winds 10 to 15 kt. Seas 3 ft. 
.SUN NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. 
.MON...S winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON NIGHT...S winds 10 to 15 kt. Seas 3 to 5 ft.