000
FZNT32 KNHC 172101
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
501 PM EDT Tue Aug 17 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 18.4N 77.9W 1003 mb at
5 PM EDT moving W at 13 kt. Maximum sustained winds 45 kt gusts
55 kt. Grace will move to 18.9N 80.3W Wed morning, strengthen to
a hurricane near 19.4N 83.4W Wed afternoon, 20.0N 86.7W Thu
morning, move inland and weaken to a tropical storm near 20.5N
89.7W Thu afternoon, strengthen to a hurricane near 20.9N 92.2W
Fri morning, and 21.2N 94.8W Fri afternoon. Grace will weaken to
a tropical storm while moving inland near 21.0N 99.5W Sat
afternoon. Grace is forecast to move near or over the Cayman
Islands late tonight and early Wednesday, and then approach the
Yucatan peninsula of Mexico late Wednesday or early Thursday.
Winds and seas will begin to increase across the SE waters ahead
of Grace on Wed. 

Gulf of Mexico N of 26N W of 87W

.TONIGHT...SE winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 ft. 
.WED...SE winds 10 to 15 kt. Seas 3 ft. 
.WED NIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.THU...SE winds 10 to 20 kt. Seas 4 to 6 ft. 
.THU NIGHT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.FRI...SE winds 10 to 20 kt. Seas 6 to 9 ft. 
.FRI NIGHT...SE winds 10 to 20 kt. Seas 6 to 8 ft. 
.SAT...SE winds 10 to 20 kt. Seas 5 to 7 ft. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 4 to 6 ft. 
.SUN...E winds 10 to 15 kt. Seas 3 to 5 ft. 

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

.TONIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED NIGHT...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 20 to 30 kt.
Seas 7 to 10 ft. 
.THU NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 30 to
40 kt. Seas 8 to 11 ft. 
.FRI...HURRICANE CONDITIONS POSSIBLE. 
.FRI NIGHT...HURRICANE CONDITIONS POSSIBLE. 
.SAT...TROPICAL STORM CONDITIONS POSSIBLE. 
.SAT NIGHT...E winds 10 to 20 kt. Seas 5 to 7 ft. 
.SUN...E winds 10 to 20 kt. Seas 5 to 7 ft. 

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

...TROPICAL STORM WARNING...

.TONIGHT...Within 60 nm of coast of Veracruz, E winds less than
10 kt, shifting to SE after midnight. Elsewhere, E winds 10 to
20 kt. Seas 2 ft or less, building to 3 to 4 ft after midnight. 
.WED...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. Within 60 nm
of coast of Veracruz, E winds 10 to 15 kt. Elsewhere, NE winds
10 to 20 kt, becoming E 20 to 30 kt after midnight. 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 5 ft. 
.THU NIGHT...HURRICANE CONDITIONS POSSIBLE. N winds less than
10 kt within 60 nm of coast of Veracruz, and N 50 to 65 kt
elsewhere. Seas 3 ft within 60 nm of coast of Veracruz, and 6 to
9 ft elsewhere. 
.FRI...HURRICANE CONDITIONS POSSIBLE. 
.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 10 to 20 kt elsewhere. Seas 5 to 7 ft. 
.SUN...E winds 10 to 20 kt. Seas 4 to 6 ft. 

Gulf of Mexico E of 87W

.TONIGHT...SE winds 10 to 20 kt. Seas 3 to 4 ft. 
.WED...TROPICAL STORM CONDITIONS POSSIBLE. E winds 10 to 20 kt.
Seas 3 to 4 ft. 
.WED NIGHT...TROPICAL STORM CONDITIONS POSSIBLE. E winds 20 to
30 kt. Seas 4 to 6 ft. 
.THU...TROPICAL STORM CONDITIONS POSSIBLE. SE winds 20 to
30 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...E winds 10 to 15 kt. Seas 3 to 4 ft. 
.SAT...E winds 10 to 15 kt. Seas 3 ft. 
.SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, building to
3 ft after midnight. 
.SUN...E winds 10 to 15 kt. Seas 3 ft.