000
FZNT32 KNHC 110909
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
509 AM EDT Mon Sep 11 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...Hurricane Irma near 28.9N 82.6W, 965 mb moving NNW
at 16 kt at 5 AM EDT, and continuing inland over the Florida
peninsula. Maximum sustained winds 75 kt gusts 90 kt. Irma will
weaken to a tropical storm as it reaches 30.8N 83.7W this
afternoon, then continues to 33.0N 85.7W tonight. Irma will
weaken to a depression as it move farther N Tue, eventually
dissipating well N of the region by late Wed. A weak pressure
pattern will set up across the Gulf in the wake of Irma through
the remainder of the week. 

Gulf of Mexico N of 26N W of 87W

.TODAY...N winds 15 to 25 kt. Seas 8 to 13 ft. 
.TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. 
.TUE...NW winds 10 to 15 kt. Seas 4 to 6 ft. 
.TUE NIGHT...NW winds 10 to 15 kt, shifting to W after midnight.
Seas 3 to 4 ft in the evening, subsiding to 2 ft or less. 
.WED...SW winds less than 10 kt. Seas 2 ft or less. 
.WED NIGHT...SW winds less than 10 kt, shifting to S after
midnight. Seas 2 ft or less. 
.THU...SW winds 10 to 15 kt. Seas 2 ft or less. 
.THU NIGHT...S winds less than 10 kt, shifting to SE after
midnight. Seas 2 ft or less. 
.FRI...SE winds 10 to 15 kt. Seas 2 ft or less. 

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

.TODAY...N winds 10 to 20 kt. Seas 8 to 11 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 6 to 9 ft. 
.TUE...NW winds less than 10 kt. Seas 5 to 7 ft.
.TUE NIGHT...W winds less than 10 kt. Seas 3 to 5 ft. 
.WED...SW winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.WED NIGHT...SW winds less than 10 kt, shifting to S after
midnight. Seas 2 ft or less. 
.THU...S winds 10 to 15 kt. Seas 2 ft or less. 
.THU NIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.FRI...SE winds 10 to 15 kt. Seas 2 ft or less. 

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

.TODAY...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.TONIGHT...N winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE...NW winds less than 10 kt. Seas 4 to 6 ft.
.TUE NIGHT...NW winds less than 10 kt. Seas 4 to 6 ft. 
.WED...Variable winds less than 10 kt. Seas 3 to 4 ft. 
.WED NIGHT...Variable winds less than 10 kt, becoming E less
than 10 kt after midnight. Seas 3 ft in the evening, subsiding
to 2 ft or less. 
.THU...SE winds less than 10 kt. Seas 2 ft or less. 
.THU NIGHT...E winds less than 10 kt. Seas 2 ft or less. 
.FRI...SE winds less than 10 kt. Seas 2 ft or less. 

Gulf of Mexico E of 87W

...TROPICAL STORM WARNING...

.TODAY...TROPICAL STORM CONDITIONS EXPECTED. NW winds 45 to
55 kt, diminishing to 30 to 40 kt in the afternoon. Seas 10 to
15 ft. 
.TONIGHT...NW winds 20 to 30 kt. Seas 8 to 11 ft, subsiding to
6 to 8 ft after midnight. 
.TUE...W winds 10 to 15 kt. Seas 5 to 7 ft. 
.TUE NIGHT...SW winds 10 to 15 kt, diminishing to less than
10 kt after midnight. Seas 3 to 4 ft. 
.WED...SW winds less than 10 kt. Seas 3 ft. 
.WED NIGHT...S winds less than 10 kt. Seas 2 ft or less. 
.THU...SW winds less than 10 kt. Seas 2 ft or less. 
.THU NIGHT...SE winds less than 10 kt. Seas 2 ft or less. 
.FRI...SE winds less than 10 kt. Seas 2 ft or less.