Offshore Marine Forecast
000
FZNT24 KNHC 182130 CCA
OFFNT4
Offshore Waters Forecast for the Gulf of America...Corrected
NWS National Hurricane Center Miami, FL
416 PM EDT Thu Sep 18 2025
Corrected synopsis
Offshore Waters Forecast 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.
GMZ001-190830-
Synopsis for the Gulf of America
416 PM EDT Thu Sep 18 2025
.SYNOPSIS...High pressure ridging extending southward across the
area will control the general weather pattern through late Fri
before shifting NE and weakening into next week. Unsettled weather
will continue over the far southeastern Gulf through through late
Fri as ample moisture and a nearby trough remain in place. With
Tropical Storm Gabrielle over the Atlantic lifting northward through
Sun, Atlantic ridging will build westward along the northern Gulf
early next week.
$$
GMZ040-190830-
NW Gulf of America including Stetson Bank-
416 PM EDT Thu Sep 18 2025
.TONIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 5 kt, becoming NE to E 10 kt in
the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...E to SE winds 10 kt. Seas 3 to 4 ft.
.SAT...E to SE winds 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E to SE winds 10 kt. Seas 3 to 4 ft.
.SUN...SE winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.MON...SE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...S to SW winds 10 kt in the morning, becoming variable less
than 5 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
$$
GMZ041-190830-
SW Louisiana Offshore Waters including Flower Garden Bank Marine
Sanctuary-
416 PM EDT Thu Sep 18 2025
.TONIGHT...E to SE winds 10 kt. Seas 3 to 4 ft.
.FRI...Variable winds less than 5 kt, becoming E 10 kt in the
afternoon. Seas 3 to 4 ft.
.FRI NIGHT...E to SE winds 10 kt. Seas 3 to 4 ft.
.SAT...E winds 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...S to SW winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds 10 kt. Seas 3 to 4 ft.
$$
GMZ056-190830-
N Central Gulf of America Offshore Waters-
416 PM EDT Thu Sep 18 2025
.TONIGHT...E winds 10 kt. Seas 3 to 4 ft.
.FRI...E winds 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.SAT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...E to SE winds 10 kt. Seas 2 to 4 ft.
.MON NIGHT...SE winds 10 kt. Seas 2 to 4 ft.
.TUE...S winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...S to SW winds 10 kt. Seas 3 to 4 ft.
$$
GMZ057-190830-
NE Gulf of America N of 26N E of 87W-
416 PM EDT Thu Sep 18 2025
.TONIGHT...E winds 10 kt. Seas 3 to 4 ft.
.FRI...NE to E winds 10 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...NE winds 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...NE to E winds 10 kt. Seas 3 to 4 ft.
.MON...E winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.TUE...Variable winds less than 5 kt. Seas 3 to 4 ft.
.TUE NIGHT...S winds 10 kt in the evening, becoming variable less
than 5 kt. Seas 3 to 4 ft.
$$
GMZ058-190830-
W Central Gulf of America from 22N to 26N W of 94W-
416 PM EDT Thu Sep 18 2025
.TONIGHT...E winds 10 kt. Seas 3 to 4 ft. Winds and seas higher
in and near scattered to numerous showers and thunderstorms.
.FRI...Variable winds less than 5 kt W of 96W, and E 10 kt E of
96W. Seas 3 to 4 ft. Scattered to numerous showers and
thunderstorms.
.FRI NIGHT...E winds 10 kt. Seas 3 to 4 ft. Scattered showers and
thunderstorms.
.SAT...E winds 10 kt. Seas 3 to 4 ft. Scattered showers and
isolated thunderstorms.
.SAT NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.SUN...E to SE winds 10 kt. Seas 3 to 4 ft.
.SUN NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.MON...SE to S winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.TUE...SE to S winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E to SE winds 10 kt. Seas 3 to 4 ft in E swell.
$$
GMZ045-190830-
W Central Gulf of America from 22N to 26N between 91W and 94W-
416 PM EDT Thu Sep 18 2025
.TONIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...E winds 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...SE to S winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E to SE winds 10 kt. Seas 3 to 4 ft.
$$
GMZ046-190830-
Central Gulf of America from 22N to 26N between 87W and 91W-
416 PM EDT Thu Sep 18 2025
.TONIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Isolated
showers and thunderstorms.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. Isolated showers and
thunderstorms.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Isolated showers
and thunderstorms.
.SAT...E winds 10 to 15 kt. Seas 3 to 4 ft. Isolated showers and
isolated thunderstorms.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 3 to 3 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 3 ft.
.MON...E to SE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...SE to S winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
$$
GMZ047-190830-
SE Gulf of America from 22N to 26N E of 87W including Straits of
Florida-
416 PM EDT Thu Sep 18 2025
.TONIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Winds and
seas higher in and near scattered showers and thunderstorms.
.FRI...NE to E winds 10 kt. Seas 3 to 4 ft. Scattered showers and
isolated thunderstorms.
.FRI NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.SAT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.SAT NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.SUN...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...Variable winds less than 5 kt. Seas 3 to 4 ft in SE to S
swell.
.MON NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.TUE...S winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE to S winds 10 kt. Seas 3 to 4 ft.
$$
GMZ048-190830-
SW Gulf of America S of 22N W of 94W-
416 PM EDT Thu Sep 18 2025
.TONIGHT...S of 21N W of 95W, NE winds 10 kt in the evening,
becoming variable less than 5 kt. Elsewhere, NE to E winds 10 kt.
Seas 3 to 4 ft. Scattered showers and isolated thunderstorms.
.FRI...N to NE winds 10 kt. Seas 3 to 4 ft. Scattered showers and
isolated thunderstorms.
.FRI NIGHT...NE winds 10 kt. Seas 3 to 4 ft. Scattered showers
and isolated thunderstorms.
.SAT...N winds 10 kt. Seas 3 to 4 ft. Scattered showers and
isolated thunderstorms.
.SAT NIGHT...NE winds 10 kt. Seas 3 to 4 ft.
.SUN...S of 21N W of 95W, NW winds 10 kt, shifting to N to NE in
the afternoon. Elsewhere, SW winds 10 kt in the morning, becoming
variable less than 5 kt. Seas 3 to 4 ft.
.SUN NIGHT...Variable winds less than 5 kt. Seas 3 to 4 ft.
.MON...S of 21N W of 95W, variable winds less than 5 kt in the
morning. Variable winds less than 5 kt in the afternoon.
Elsewhere, SE to S winds 10 kt in the morning. Seas 3 to 4 ft.
.MON NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
.TUE...S of 21N W of 95W, S winds 10 kt in the morning, becoming
variable less than 5 kt. Elsewhere, SE to S winds 10 kt. Seas
2 to 4 ft.
.TUE NIGHT...SE winds 10 kt. Seas 3 to 4 ft.
$$
GMZ049-190830-
Central Bay of Campeche-
416 PM EDT Thu Sep 18 2025
.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.FRI...S of 20N, E winds 10 kt in the morning, becoming variable
less than 5 kt. N of 20N, E winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.SAT...NE to E winds 10 kt. Seas 2 to 4 ft. Scattered showers and
isolated thunderstorms.
.SAT NIGHT...NE winds 10 kt, shifting to E to SE late. Seas 3 to 4
ft.
.SUN...SE winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 to 4 ft.
.SUN NIGHT...S of 20N, SE winds 10 to 15 kt. N of 20N, variable
winds less than 5 kt, becoming SE 10 kt late. Seas 3 ft
or less.
.MON...SE winds 10 kt in the morning, becoming variable less than
5 kt. Seas 3 to 4 ft.
.MON NIGHT...E to SE winds 10 kt. Seas 3 to 4 ft.
.TUE...SE to S winds 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...E to SE winds 10 kt. Seas 3 to 4 ft.
$$
GMZ050-190830-
E Bay of Campeche including Campeche Bank-
416 PM EDT Thu Sep 18 2025
.TONIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.FRI...W of 90W, E to SE winds 10 kt in the morning, becoming
variable less than 5 kt. E of 90W, SE winds 10 kt, shifting to NE
in the afternoon. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Scattered
showers and isolated thunderstorms.
.SAT...E to SE winds 10 kt. Seas 2 to 4 ft. Scattered showers and
isolated thunderstorms.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON...SE winds 10 kt. Seas 3 to 4 ft.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...SE winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
$$
Forecaster Aguirre
