Offshore Forecast
Issued by NWS

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000
FZNT24 KNHC 210250
OFFNT4

Offshore Waters Forecast for the Gulf of Mexico
NWS National Hurricane Center Miami, FL
1050 PM EDT Sat Oct 20 2018

Offshore Waters Forecast 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.

GMZ001-211500-
Synopsis for the Gulf of Mexico
1050 PM EDT Sat Oct 20 2018

.SYNOPSIS...A 1015 mb low presure is over the NW Gulf near 27N96W.
A stationary from extends from the low to SE Louisiana, then
continues NE as a cold front. A trough also extends from the low
across the western Gulf to near 19N94W. The cold front will push
into the northern Gulf tonight, and sweep across the eastern and
central Gulf waters on Sun, and become stationary from S Florida
to 26N93W and warm front to a new 1017 mb low at 26N97W on Mon. A
cold front will extend from the new low to near Tampico, Mexico.
The present 1017 mb low over the NW Gulf will dissipate late
tonight over the north-central Gulf. The new Low will lift north-
eastward through Mon night, then east-northeastward across the
north-central Gulf through Wed night and the NE Gulf Thu, with a
front to trail from it to the SW Gulf, and another front from
the low eastward across N-central Florida. High pressure will
build in the wake of the low and front supporting fresh to strong
NE to E winds and building seas.

$$

GMZ011-211500-
NW Gulf including Stetson Bank-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...NE winds 20 to 25 kt. Seas 4 to 6 ft. Scattered
showers and isolated thunderstorms.
.SUN...NE winds 20 to 25 kt. Seas 6 to 9 ft. Scattered showers
and isolated thunderstorms.
.SUN NIGHT...NE to E winds 20 to 25 kt. Seas 6 to 9 ft.
Scattered showers and isolated thunderstorms.
.MON...E winds 20 to 25 kt. Seas 6 to 8 ft. Scattered showers
and isolated thunderstorms.
.MON NIGHT...E winds 20 to 25 kt. Seas 5 to 7 ft.
.TUE...NE to E winds 20 to 25 kt. Seas 4 to 6 ft.
.TUE NIGHT...NE winds 15 to 20 kt, shifting to E to SE late.
Seas 4 to 6 ft.
.WED...S winds 10 to 15 kt. Seas 3 to 5 ft.
.WED NIGHT...S to SW winds 10 to 15 kt. Seas 2 to 4 ft.
.THU...NW winds 10 to 15 kt. Seas 2 to 4 ft.
.THU NIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft.

$$

GMZ013-211500-
N Central Gulf including Flower Garden Banks Marine Sanctuary-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...W of 90W, NE winds 20 to 25 kt. Elsewhere, NE to E
winds less than 5 kt, becoming N to NE 15 to 20 kt late.
Seas 3 to 5 ft.
.SUN...NE to E winds 20 to 25 kt. Seas 6 to 8 ft.
.SUN NIGHT...NE to E winds 20 to 25 kt. Seas 6 to 8 ft.
.MON...E winds 15 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...E to SE winds 15 to 20 kt. Seas 3 to 5 ft.
.TUE...SE winds 15 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft.
.WED...SE to S winds 15 to 20 kt. Seas 3 to 5 ft.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.THU...S to SW winds 10 to 15 kt. Seas 2 to 4 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft.

$$

GMZ015-211500-
NE Gulf N of 25N E of 87W-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...N to NE winds 5 to 10 kt S of 27N, and N 15 to
20 kt elsewhere. Seas 3 ft or less.
.SUN...NE winds 15 to 20 kt. S of 27N, seas 3 ft or less,
building to 3 to 5 ft. Elsewhere, seas 4 to 6 ft.
.SUN NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft.
.MON...E winds 15 to 20 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...NE to E winds 15 to 20 kt. Seas 2 to 4 ft.
.WED...E winds 10 to 15 kt. Seas 2 to 4 ft.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.THU...SE winds 10 to 15 kt. Seas 3 ft or less.
.THU NIGHT...SW to W winds 5 to 10 kt. Seas 3 ft or less.

$$

GMZ017-211500-
W Central Gulf from 22N to 26N W of 94W-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...W of 96W, N winds 20 to 25 kt. Seas 6 to 8 ft.
Elsewhere, NE winds 10 to 15 kt. Seas 3 to 5 ft.
.SUN...W of 96W, N winds 20 to 25 kt. Seas 6 to 8 ft. Elsewhere,
NE to E winds 10 to 15 kt. Seas 4 to 6 ft. Scattered showers and
isolated thunderstorms.
.SUN NIGHT...NW to N winds 20 to 30 kt W of 96W, and E to SE
10 to 15 kt elsewhere. Seas 6 to 8 ft. Scattered showers and
isolated thunderstorms.
.MON...NW winds 20 to 25 kt W of 96W, and SE to S 10 to 15 kt
elsewhere. Seas 6 to 8 ft.
.MON NIGHT...NW to N winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...N winds 10 to 15 kt, shifting to E to SE 5 to 10 kt
late. Seas 2 to 4 ft.
.WED...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.WED NIGHT...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.THU...S to SW winds 15 to 20 kt, shifting to NW in the
afternoon. Seas 2 to 4 ft.
.THU NIGHT...N winds 15 to 20 kt. Seas 2 to 4 ft.

$$

GMZ019-211500-
Central Gulf from 22N to 26N between 87W and 94W-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN...E winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft S of 24N, and
5 to 7 ft elsewhere.
.MON...E to SE winds 10 to 15 kt. Seas 5 to 7 ft.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...SE to S winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft.
.WED...SE winds 10 to 15 kt. Seas 2 to 4 ft.
.WED NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.THU...SE to S winds 10 to 15 kt. Seas 3 ft or less.
.THU NIGHT...W winds 5 to 10 kt. Seas 3 ft or less.

$$

GMZ021-211500-
E Gulf from 22N to 25N E of 87W including Straits of Florida-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...E winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...NE to E winds 5 to 10 kt. Seas 3 ft or less.
.WED...NE to E winds 5 to 10 kt. Seas 3 ft or less.
.WED NIGHT...NE to E winds 5 to 10 kt. Seas 3 ft or less.
.THU...NE winds 5 to 10 kt. Seas 3 ft or less.
.THU NIGHT...N winds 5 to 10 kt. Seas 3 ft or less.

$$

GMZ023-211500-
SW Gulf S of 22N W of 94W-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...NW winds 20 to 25 kt S of 21N W of 95W, and N to NE
15 to 20 kt elsewhere. Seas 5 to 7 ft. Scattered showers and
isolated thunderstorms.
.SUN...NW winds 20 to 25 kt S of 21N W of 95W, and NE 10 to
15 kt elsewhere. Seas 5 to 7 ft. Scattered showers and isolated
thunderstorms.
.SUN NIGHT...NW winds 20 to 25 kt S of 21N W of 95W, and N to NE
15 to 20 kt elsewhere. Seas 5 to 7 ft.
.MON...N winds 15 to 20 kt. Seas 5 to 7 ft.
.MON NIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...NE winds 5 to 10 kt, shifting to E to SE in the
afternoon. Seas 2 to 4 ft.
.TUE NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.WED...SE winds 5 to 10 kt. Seas 3 ft or less.
.WED NIGHT...E to SE winds 5 to 10 kt. Seas 3 ft or less.
.THU...E to SE winds 5 to 10 kt. Seas 3 ft or less.
.THU NIGHT...N to NE winds 10 to 15 kt. Seas 2 to 4 ft.

$$

GMZ025-211500-
E Bay of Campeche including Campeche Bank-
1050 PM EDT Sat Oct 20 2018

.OVERNIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
Scattered showers and isolated thunderstorms.
.SUN...E winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.MON...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.MON NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.WED...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft.
.THU...E to SE winds 10 to 15 kt. Seas 2 to 4 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 ft or less.

$$

Forecaster GR



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