000
FZNT32 KNHC 070944
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
544 AM EDT Thu Sep 7 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 21.5N 94.5W 989 mb at 5 AM EDT
nearly stationary. Maximum sustained winds 70 kt gusts 85 kt.
Katia is forecast to remain relatively stationary and slowly
strengthen through tonight then begin to move SW, reaching near
20.8N 95.8W Fri afternoon and inland near 20.2N 97.1W Fri night,
where it will quickly weaken to a post-tropical cyclone. Major
Hurricane Irma is forecast to move between Cuba and the Bahamas
Fri and Sat, then turn northward across the Florida peninsula
Sat night and Sun, 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

.TODAY...NE winds 15 to 25 kt. Seas 3 to 5 ft. 
.TONIGHT...NE winds 10 to 20 kt. Seas 4 to 6 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 15 to 25 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...

.TODAY...TROPICAL STORM CONDITIONS POSSIBLE. E winds 35 to
45 kt. Seas 4 to 6 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. NE winds 25 to
35 kt. Seas 4 to 6 ft. 
.FRI...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to 30 kt.
Seas 5 to 7 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 6 to 8 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...

.TODAY...TROPICAL STORM CONDITIONS. NW winds 20 to 30 kt within
60 nm of coast of Veracruz, and SE 60 to 75 kt elsewhere. Seas
7 to 10 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm of
coast of Veracruz, NW winds 25 to 35 kt. Elsewhere, W winds
65 to 75 kt, shifting to NE after midnight. Seas 8 to 11 ft. 
.FRI...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm of
coast of Veracruz, NW winds 45 to 55 kt, increasing to 65 to
75 kt in the afternoon. Elsewhere, SE winds 65 to 75 kt. Seas
10 to 15 ft within 60 nm of coast of Veracruz, and 7 to 10 ft
elsewhere. 
.FRI NIGHT...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm
of coast of Veracruz, NW winds 65 to 75 kt, shifting to S 60 to
70 kt after midnight,Seas 10 to 15 ft, subsiding to 8 to 11 ft
after midnight. Elsewhere, N winds 50 to 60 kt, becoming NE
15 to 25 kt after midnight,Seas 5 to 7 ft. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm of
coast of Veracruz, E winds 25 to 35 kt, becoming N 10 to 15 kt
in the afternoon. Elsewhere, NE winds 10 to 15 kt. Seas 3 to
5 ft. 
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. 
.SUN...N winds 10 to 20 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

.TODAY...NE winds 10 to 20 kt. Seas 2 ft or less. 
.TONIGHT...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. NE winds 20 to 30 kt,
increasing to 30 to 40 kt in the afternoon. Seas 6 to 9 ft. 
.SAT NIGHT...HURRICANE CONDITIONS POSSIBLE. 
.SUN...HURRICANE CONDITIONS POSSIBLE. 
.SUN NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.MON...TROPICAL STORM CONDITIONS POSSIBLE.