000
FZNT32 KNHC 181504
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1104 AM EDT Wed Aug 18 2021

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 Grace near 19.4N 82.2W 992 mb at 11 AM EDT
moving WNW at 13 kt. Maximum sustained winds 65 kt gusts 80 kt.
Grace will move to 19.7N 84.5W this evening, inland to 20.3N
87.6W Thu morning, weaken to a tropical storm near 20.6N 90.5W
Thu evening, strengthen to a hurricane near 20.7N 93.2W Fri
morning, 20.7N 95.3W Fri evening, and move inland and weaken to
a tropical storm near 20.5N 97.7W Sat morning. Winds and seas
will begin to increase across the southeastern Gulf ahead of
Grace today. These conditions will shift to west of 90W Thu
through late Fri night. 

Gulf of Mexico N of 26N W of 87W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 ft. 
.TONIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.THU...SE winds 10 to 20 kt. Seas 3 to 5 ft. 
.THU NIGHT...SE winds 15 to 25 kt. Seas 5 to 7 ft. 
.FRI...SE winds 15 to 25 kt. Seas 6 to 9 ft. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 

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

...TROPICAL STORM WARNING...

.THIS AFTERNOON...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to
20 kt, increasing to 20 to 30 kt after midnight. Seas 4 to 6 ft.
.THU...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to 35 kt.
Seas 7 to 10 ft. 
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to
35 kt. Seas 7 to 10 ft. 
.FRI...TROPICAL STORM CONDITIONS POSSIBLE. E winds 30 to 40 kt.
Seas 8 to 11 ft. 
.FRI NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT NIGHT...E winds 15 to 25 kt. Seas 6 to 8 ft. 
.SUN...E winds 15 to 25 kt. Seas 4 to 6 ft. 

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

...HURRICANE WARNING...

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

Gulf of Mexico E of 87W

...TROPICAL STORM WARNING...

.THIS AFTERNOON...E winds 10 to 20 kt. Seas 3 to 4 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. SE winds 25 to
35 kt. Seas 4 to 6 ft. 
.THU...TROPICAL STORM CONDITIONS EXPECTED. E winds 25 to 35 kt.
Seas 5 to 7 ft. 
.THU NIGHT...E winds 15 to 25 kt. Seas 4 to 6 ft. 
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft in the
evening, subsiding to 2 ft or less. 
.SAT...E winds 10 to 15 kt. Seas 2 ft or less. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 2 ft or less. 
.SUN...E winds 10 to 15 kt. Seas 2 ft or less.