000
FZNT32 KNHC 202021
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
421 PM EDT Wed Sep 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...A trough will develop each night over the NW Yucatan
Peninsula, then move W-NW across the SW Gulf overnight and
dissipate over the SW waters by late each morning. A surface
high will meander over the N-Central waters through Thu night
then shift N of area on Fri. 

Gulf of Mexico N of 26N W of 87W

.TONIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.THU...E winds 10 to 15 kt. Seas 2 ft or less, building to 3 ft
in the afternoon. 
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.FRI...E winds less than 10 kt. Seas 2 ft or less, building to
3 ft in the afternoon. 
.FRI NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.SAT...E winds 10 to 15 kt. Seas 3 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.SUN...E winds 10 to 15 kt. Seas 3 ft. 
.SUN NIGHT...SE winds 10 kt. Seas 3 ft. 
.MON...SE winds 10 kt. Seas 3 ft in the morning, subsiding to
2 ft or less. 
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 ft or less. 

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

.TONIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.THU...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 ft. 
.THU NIGHT...E winds 10 to 15 kt. Seas 3 ft. 
.FRI...E winds less than 10 kt. Seas 3 ft. 
.FRI NIGHT...E winds 10 kt. Seas 2 ft or less. 
.SAT...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.SAT NIGHT...E 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 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.MON...SE winds 10 to 15 kt. Seas 3 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 

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

.TONIGHT...Within 60 nm of coast of Veracruz, E winds less than
10 kt. Elsewhere, NE winds less than 10 kt, shifting to E after
midnight. Seas 2 ft or less, building to 3 to 4 ft after
midnight. 
.THU...Within 60 nm of coast of Veracruz, SE winds less than
10 kt in the morning, becoming variable 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. 
.THU NIGHT...Within 60 nm of coast of Veracruz, E winds less
than 10 kt. Elsewhere, NE winds less than 10 kt, shifting to E
after midnight. Seas 2 ft or less, building to 3 ft after
midnight. 
.FRI...SE winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...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, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.SUN...E winds 10 to 15 kt, shifting to SE in the afternoon.
Seas 2 ft or less. 
.SUN NIGHT...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. 
.MON...SE winds 10 to 15 kt. Seas 3 ft. 
.MON NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 to 4 ft after midnight. 

Gulf of Mexico E of 87W

.TONIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.THU...E winds less than 10 kt. Seas 2 ft or less. 
.THU NIGHT...NE winds less than 10 kt. Seas 2 ft or less. 
.FRI...NE winds less than 10 kt. Seas 2 ft or less.
.FRI NIGHT...NE winds 10 kt. Seas 2 ft or less. 
.SAT...NE winds 10 kt. Seas 2 ft or less. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. 
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. 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.