000
FZNT32 KNHC 180855
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
455 AM EDT Fri May 18 2018

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 extending southwest from the western
Florida Panhandle to the central gulf waters will dissipate
today as a ridge builds westward across the Gulf waters. The
ridge will persist during the upcoming weekend, and into early
next week. Another surface trough is forecast to develop over
the eastern Gulf Sat night into Sun. A thermal trough will also
develop over the evening hours over the Yucatan peninsula before
pushing offshore into the SW each night. A surge of moderate to
fresh winds will be associated with this trough. 

Gulf of Mexico N of 26N W of 87W

.TODAY...S winds less than 10 kt. Seas 2 ft or less, building to
3 ft in the afternoon. 
.TONIGHT...S winds less than 10 kt, shifting to SE after
midnight. Seas 3 ft. 
.SAT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SAT NIGHT...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.TUE...SE winds less than 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds less than 10 kt. Seas 3 ft. 

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

.TODAY...SE winds less than 10 kt. Seas 2 ft or less, building
to 3 ft in the afternoon. 
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.MON...E winds 10 to 20 kt. Seas 3 to 5 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 3 to 4 ft. 

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

.TODAY...SE 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...SE winds 10 to 15 kt. Seas 3 to 4 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 20 kt. Seas 3 to 5 ft. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 ft. 

Gulf of Mexico E of 87W

.TODAY...S winds less than 10 kt. Seas 2 ft or less. 
.TONIGHT...SE winds less than 10 kt. Seas 2 ft or less. 
.SAT...SE winds 10 kt. Seas 2 ft or less. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.MON...SE winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds less than 10 kt, shifting to SE after
midnight. Seas 3 to 4 ft. 
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.