000
FZNT32 KNHC 070251
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1051 PM EDT Wed Sep 6 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 Katia near 21.7N 94.8W 989 mb at 11 PM EDT 
moving E at 2 kt. Maximum sustained winds 70 kt gusts 85 kt. 
Katia is forecast to move to near 21.5N 94.6W Thu morning, then 
to near 21.3N 94.8W Thu evening, then to near 21.1N 95.4W Fri 
morning, then near 20.6N 96.4W Fri evening, then will make 
landfall, weakening to a post-tropical cyclone near 19.0N 98.5W 
Sat evening, dissipating by Sun evening. Major Hurricane Irma is 
forecast to  move between Cuba and the Bahamas Sat, then turn 
northward across the Florida peninsula, possibly bringing 
tropical storm force winds to eastern portions of the Straits of 
Florida and Florida Bay in the far SE Gulf late Sat into Sun. 

Gulf of Mexico N of 26N W of 87W

.OVERNIGHT...NE winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU...NE winds 15 to 25 kt. Seas 4 to 6 ft. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...NE winds 15 to 20 kt. Seas 5 to 7 ft. 
.FRI NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft. 
.SAT...NE winds 15 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...NE winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN...NE winds 15 to 25 kt. Seas 6 to 9 ft. 
.SUN NIGHT...NE winds 20 to 30 kt. Seas 7 to 10 ft. 
.MON...N winds 15 to 25 kt. Seas 7 to 10 ft. 

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

...TROPICAL STORM WARNING...
...HURRICANE CONDITIONS POSSIBLE THU NIGHT AND FRI...

.OVERNIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 30 to
40 kt. Seas 3 to 5 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to 35 kt.
Seas 4 to 6 ft. 
.THU NIGHT...HURRICANE CONDITIONS POSSIBLE. NE winds 25 to
35 kt. Seas 4 to 6 ft. 
.FRI...HURRICANE CONDITIONS POSSIBLE. E winds 20 to 30 kt. Seas
4 to 6 ft. 
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 10 to
20 kt. Seas 5 to 7 ft. 
.SAT...NE winds 10 to 20 kt. Seas 4 to 6 ft. 
.SAT NIGHT...NE winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN...N winds 15 to 25 kt. Seas 5 to 7 ft. 
.SUN NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. 
.MON...N winds 10 to 20 kt. Seas 6 to 9 ft. 

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

...HURRICANE WARNING...

.OVERNIGHT...TROPICAL STORM CONDITIONS. NW winds 20 to 30 kt
within 60 nm of coast of Veracruz, and N 45 to 55 kt elsewhere.
Seas 6 to 8 ft. 
.THU...TROPICAL STORM CONDITIONS EXPECTED. NW winds 20 to 30 kt
within 60 nm of coast of Veracruz, and SE 45 to 60 kt elsewhere.
Seas 7 to 10 ft. 
.THU NIGHT...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm
of coast of Veracruz, NW winds 20 to 30 kt, increasing to 30 to
40 kt after midnight,Seas 8 to 11 ft, building to 9 to 14 ft
after midnight. Elsewhere, W winds 50 to 60 kt, shifting to NE
55 to 65 kt after midnight,Seas 8 to 11 ft. 
.FRI...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm of
coast of Veracruz, NW winds 40 to 50 kt, increasing to 55 to
65 kt in the afternoon. Elsewhere, SE winds 55 to 65 kt. Seas
11 to 16 ft within 60 nm of coast of Veracruz, and 7 to 10 ft
elsewhere. 
.FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. Within 60 nm of
coast of Veracruz, NW winds 55 to 65 kt, shifting to SE 50 to
60 kt after midnight,Seas 11 to 16 ft, subsiding to 8 to 11 ft
after midnight. Elsewhere, N winds 35 to 45 kt, becoming NE
15 to 25 kt after midnight,Seas 5 to 7 ft. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...N winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...N winds 10 to 20 kt. Seas 4 to 6 ft. 
.MON...N winds 10 to 20 kt. Seas 4 to 6 ft. 

Gulf of Mexico E of 87W

...HURRICANE CONDITIONS POSSIBLE SAT THROUGH SUN NIGHT...

.OVERNIGHT...N winds 10 to 20 kt. Seas 2 ft or less. 
.THU...NE winds 10 to 20 kt. Seas 2 ft or less. 
.THU NIGHT...NE winds 10 to 20 kt. Seas 2 ft or less. 
.FRI...NE winds 10 to 20 kt. Seas 3 to 4 ft. 
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 15 to
25 kt. Seas 4 to 6 ft. 
.SAT...HURRICANE CONDITIONS POSSIBLE. 
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE. 
.SUN...HURRICANE CONDITIONS POSSIBLE. 
.SUN NIGHT...HURRICANE CONDITIONS POSSIBLE. 
.MON...TROPICAL STORM CONDITIONS POSSIBLE.