000
FZNT32 KNHC 200859
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
453 AM EDT Fri Aug 20 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...Tropical Storm Grace near 20.7N 93.3W 994 mb at 5 AM 
EDT moving W at 14 kt. Maximum sustained winds 60 kt gusts 75 kt. 
Grace will strengthen to a hurricane near 20.6N 95.2W this 
afternoon, move inland to 20.3N 97.4W Sat morning, and weaken to 
a tropical storm near 19.8N 99.7W Sat afternoon, weaken to a 
remnant low near 19.4N 102.2W Sun morning, and dissipate Sun 
afternoon. High pressure will build in the wake of Grace and 
prevail through early next week.

Gulf of Mexico N of 26N W of 87W

.TODAY...SE winds 10 to 15 kt. Seas 6 to 8 ft. 
.TONIGHT...SE winds 10 to 15 kt. Seas 5 to 7 ft. 
.SAT...SE winds 10 to 15 kt. Seas 4 to 6 ft. 
.SAT NIGHT...SE winds less than 10 kt. Seas 3 to 5 ft. 
.SUN...E winds less than 10 kt. Seas 3 to 5 ft. 
.SUN NIGHT...SE winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...SE winds less than 10 kt. Seas 2 ft or less. 
.TUE...Variable winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 

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

...TROPICAL STORM WARNING...

.TODAY...TROPICAL STORM CONDITIONS. E winds 30 to 40 kt.
Seas 8 to 11 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED.
E winds 30 to 40 kt. Seas 8 to 11 ft. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 25 to 35 kt, 
diminishing to 15 to 25 kt in the afternoon. Seas 6 to 9 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. 
.MON...E winds less than 10 kt. Seas 3 to 4 ft. 
.MON NIGHT...E winds less than 10 kt. Seas 3 ft. 
.TUE...E winds less than 10 kt. Seas 3 ft. 
.TUE NIGHT...E winds less than 10 kt. Seas 3 ft. 

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

...HURRICANE WARNING...

.TODAY...TROPICAL STORM CONDITIONS WITH HURRICANE CONDITIONS 
POSSIBLE. Within 60 nm of coast of Veracruz, NW winds 20 to 30 
kt, increasing to 35 to 45 kt in the afternoon,Seas 6 to 9 ft, 
building to 10 to 15 ft in the afternoon. Elsewhere, SE winds 55 
to 65 kt, increasing to 65 to 75 kt in the afternoon,Seas 11 to 
16 ft. 
.TONIGHT...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm of 
coast of Veracruz, SE winds 60 to 70 kt,Seas 16 to 21 ft.
Elsewhere, SE winds 65 to 75 kt, diminishing to 30 to 40 kt 
after midnight,Seas 10 to 15 ft, subsiding to 7 to 10 ft after 
midnight. 
.SAT...TROPICAL STORM CONDITIONS EXPECTED. Within 60 nm of coast 
of Veracruz, SE winds 35 to 45 kt, diminishing to 15 to 25 kt in 
the afternoon,Seas 10 to 15 ft, subsiding to 6 to 8 ft in the 
afternoon. Elsewhere, E winds 20 to 30 kt,Seas 5 to 7 ft.
.SAT NIGHT...SE winds 10 to 20 kt within 60 nm of coast of 
Veracruz, and E 15 to 25 kt elsewhere. Seas 4 to 6 ft. 
.SUN...E winds 10 to 20 kt. Seas 3 to 5 ft. 
.SUN NIGHT...E winds 10 to 20 kt. Seas 3 to 4 ft.
.MON...E winds 10 to 15 kt, shifting to NE in the afternoon.
Seas 3 to 4 ft in the morning, subsiding to 2 ft or less. 
.MON NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less. 
.TUE...NE winds less than 10 kt. Seas 2 ft or less. 
.TUE NIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, building
to 3 ft after midnight. 

Gulf of Mexico E of 87W

.TODAY...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 5 ft. 
.TONIGHT...E winds less than 10 kt. Seas 3 ft. 
.SAT...E winds less than 10 kt. Seas 3 ft in the morning,
subsiding to 2 ft or less. 
.SAT NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft. 
.SUN...E winds less than 10 kt. Seas 3 ft. 
.SUN NIGHT...SE winds less than 10 kt. Seas 3 ft.
.MON...E winds less than 10 kt in the morning, becoming variable
winds less than 10 kt. Seas 2 ft or less. 
.MON NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 2 ft or less. 
.TUE...E winds 10 to 15 kt. Seas 3 ft. 
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.