515
FZNT32 KNHC 171504
OFFN21

Marine Weather HF Voice Broadcast
NWS National Hurricane Center Miami, FL
1104 AM EDT Thu Jul 17 2025

Marine Weather HF Voice Broadcast for the Gulf of America

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...An area of broad low pressure, AL93, is centered
over the northern Gulf just south of the coast of Mississippi.
Some development could occur before the system moves westward
into Louisiana later today or tonight, although the chances of
the system developing into a tropical depression are low.
Regardless of development, heavy showers and thunderstorms are
expected over the north-central Gulf through Fri, with erratic
gusty winds and rough seas possible near convection. Elsewhere,
moderate to locally fresh E to NE winds will occur north of the
Yucatan Peninsula and into the eastern Bay of Campeche each
afternoon and evening into next week. Otherwise, high pressure
building over the northeastern Gulf this weekend will support
gentle to moderate winds and seas across the rest of the basin.

Gulf of America N of 26N W of 87W

.THIS AFTERNOON...W winds less than 10 kt. Seas 2 ft or less.
.TONIGHT...S winds less than 10 kt. Seas 2 ft or less.
.FRI...S winds less than 10 kt. Seas 3 ft.
.FRI NIGHT...SE winds 10 kt. Seas 3 ft.
.SAT...SE winds 10 kt. Seas 3 ft.
.SAT NIGHT...SE winds 10 kt. Seas 3 ft.
.SUN...SE winds less than 10 kt. Seas 3 ft.
.SUN NIGHT...SE winds 10 kt. Seas 3 ft.
.MON...SE winds less than 10 kt. Seas 3 ft.
.MON NIGHT...S winds less than 10 kt. Seas 3 ft.

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

.THIS AFTERNOON...SE winds less than 10 kt. Seas 3 ft.
.TONIGHT...E winds less than 10 kt, shifting to SE after
midnight. Seas 2 ft or less, building to 3 ft after midnight.
.FRI...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SAT...SE winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN...E winds less than 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.

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

.THIS AFTERNOON...E winds less than 10 kt within 60 nm of coast
of Veracruz, and E 10 to 15 kt elsewhere. Seas 3 ft, subsiding
to 2 ft or less.
.TONIGHT...NE winds less than 10 kt within 60 nm of coast of
Veracruz, and NE 10 to 15 kt elsewhere. Seas 3 to 4 ft.
.FRI...Variable winds less than 10 kt within 60 nm of coast of
Veracruz, and E 10 to 15 kt elsewhere. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt within 60 nm of coast of
Veracruz, and NE 10 to 15 kt elsewhere. Seas 3 to 4 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt, diminishing to less than 10 kt in
the afternoon. Seas 3 to 4 ft.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...E winds less than 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

Gulf of America E of 87W

.THIS AFTERNOON...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TONIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds less than 10 kt, increasing to 10 to 15 kt
after midnight. Seas 3 to 5 ft.
.SAT...E winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN...E winds less than 10 kt. Seas 3 to 5 ft.
.SUN NIGHT...E winds less than 10 kt. Seas 3 to 5 ft.
.MON...NE winds less than 10 kt. Seas 3 ft.
.MON NIGHT...E winds less than 10 kt. Seas 2 ft or less.