Offshore Forecast
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000
FZNT24 KNHC 221419
OFFNT4

Offshore Waters Forecast for the Gulf of Mexico
NWS National Hurricane Center Miami, FL
1019 AM EDT Sun Oct 22 2017

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.

GMZ001-230230-
Synopsis for the Gulf of Mexico
1019 AM EDT Sun Oct 22 2017

.SYNOPSIS...A low pressure trough will cause light to moderate SE
winds to shift to N ahead of a cold front that will arrive on the
Texas coast this evening. The cold front will cross the Gulf from
NW to SE by dawn on Wed. Winds behind the front are expected to
reach gale force near Veracruz Mexico from around noon on Monday
to early Tue morning. Strong high pressure will then build SE over
the northern Gulf by Thu. Light to moderate winds are generally
expected over the Gulf on Thu and Fri.

$$

GMZ011-230230-
NW Gulf including Stetson Bank-
1019 AM EDT Sun Oct 22 2017

.TODAY...S winds 5 to 10 kt, shifting to W in the afternoon. Seas
4 to 5 ft in E to SE swell. Scattered showers and isolated
thunderstorms.
.TONIGHT...N winds 20 to 25 kt. Seas 4 to 6 ft. Scattered showers
and isolated thunderstorms.
.MON...N winds 20 kt. Seas 5 to 7 ft.
.MON NIGHT...N to NE winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE...N to NE winds 20 to 25 kt. Seas 4 to 6 ft.
.TUE NIGHT...N to NE winds 20 to 25 kt. Seas 5 to 7 ft.
.WED...N winds 20 to 25 kt. Seas 5 to 7 ft.
.WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU...SE to S winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft.

$$

GMZ013-230230-
N Central Gulf including Flower Garden Banks Marine Sanctuary-
1019 AM EDT Sun Oct 22 2017

.TODAY...SE to S winds 10 to 15 kt W of 90W, and E to SE 15 to
20 kt elsewhere. Seas 4 to 6 ft. Scattered showers and isolated
thunderstorms.
.TONIGHT...NW winds 15 to 20 kt. Seas 4 to 5 ft. Scattered
showers and isolated thunderstorms.
.MON...NW to N winds 15 to 20 kt. Seas 4 to 6 ft. Scattered
showers and isolated thunderstorms.
.MON NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE...N winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...N winds 15 to 20 kt. Seas 5 to 7 ft.
.WED...N winds 15 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...NW to N winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...NW to N winds less than 5 kt, shifting to S in the
afternoon. Seas 2 to 3 ft.
.THU NIGHT...S winds 15 to 20 kt. Seas 2 to 3 ft.

$$

GMZ015-230230-
NE Gulf N of 25N E of 87W-
1019 AM EDT Sun Oct 22 2017

.TODAY...E to SE winds 15 to 20 kt. Seas 4 to 5 ft. Scattered
showers and isolated thunderstorms.
.TONIGHT...SE to S winds 15 to 20 kt. Seas 4 to 6 ft. Scattered
showers and isolated thunderstorms.
.MON...S to SW winds 15 to 20 kt. Seas 4 to 6 ft. Scattered
showers and isolated thunderstorms.
.MON NIGHT...W to NW winds 10 to 15 kt. Seas 3 to 5 ft. Scattered
showers and isolated thunderstorms.
.TUE...NW to N winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...N winds 20 to 25 kt. Seas 5 to 7 ft.
.WED...N winds 20 to 25 kt. Seas 6 to 8 ft.
.WED NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft.
.THU...N to NE winds 5 to 10 kt. Seas 3 to 4 ft.
.THU NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less.

$$

GMZ017-230230-
W Central Gulf from 22N to 26N W of 94W-
1019 AM EDT Sun Oct 22 2017

.TODAY...SE to S winds less than 5 kt, shifting to N in the
afternoon. Seas 3 to 4 ft in NE to E swell.
.TONIGHT...N to NE winds 15 to 20 kt. Seas 3 to 5 ft. Scattered
showers and isolated thunderstorms.
.MON...N winds 20 to 25 kt. Seas 5 to 7 ft.
.MON NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft.
.TUE...N winds 15 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft.
.WED...N to NE winds 15 to 20 kt. Seas 5 to 7 ft.
.WED NIGHT...NE winds 15 to 20 kt. Seas 5 to 7 ft.
.THU...SE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...SE to S winds 15 to 20 kt. Seas 3 to 5 ft.

$$

GMZ019-230230-
Central Gulf from 22N to 26N between 87W and 94W-
1019 AM EDT Sun Oct 22 2017

.TODAY...SE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered showers
and isolated thunderstorms.
.TONIGHT...N to NE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.MON...NW to N winds 15 to 20 kt. Seas 4 to 6 ft. Scattered
showers and isolated thunderstorms.
.MON NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft. Scattered
showers and isolated thunderstorms.
.TUE...N to NE winds 15 to 20 kt. Seas 5 to 7 ft.
.TUE NIGHT...N to NE winds 20 to 25 kt. Seas 6 to 8 ft.
.WED...N winds 20 to 25 kt. Seas 6 to 8 ft.
.WED NIGHT...N to NE winds 15 to 20 kt. Seas 5 to 7 ft.
.THU...NE to E winds 5 to 10 kt. Seas 4 to 6 ft in E swell.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft.

$$

GMZ021-230230-
E Gulf from 22N to 25N E of 87W including Straits of Florida-
1019 AM EDT Sun Oct 22 2017

.TODAY...SE winds 10 to 15 kt. Seas 4 to 5 ft. Scattered showers
and isolated thunderstorms.
.TONIGHT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. Scattered
showers and isolated thunderstorms.
.MON...SE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers
and isolated thunderstorms.
.MON NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.TUE...N winds 15 to 20 kt. Seas 3 to 5 ft.
.TUE NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft.
.WED...N to NE winds 15 to 20 kt. Seas 6 to 8 ft.
.WED NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.

$$

GMZ023-230230-
SW Gulf S of 22N W of 94W-
1019 AM EDT Sun Oct 22 2017

...GALE WARNING MON AND MON...

.TODAY...N to NE winds 5 to 10 kt. Seas 3 ft.
.TONIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Scattered showers
and isolated thunderstorms.
.MON...S of 21N W of 95W...NW to N winds 25 to 30 kt increasing
to 30 to 35 kt around noon and seas building from 5 to 7 ft to 8
to 11 ft. Elsewhere...N winds 20 to 25 kt. Seas 5 to 7 ft.
Scattered showers and isolated thunderstorms.
.MON NIGHT...NW to N winds 30 to 35 kt and seas 8 to 12 ft S of
21N W of 95W. N winds 20 to 25 kt and seas 6 to 9 ft elsewhere.
Scattered showers and isolated thunderstorms.
.TUE...NW to N winds 20 to 30 kt. Seas 6 to 9 ft.
.TUE NIGHT...N winds 20 to 30 kt. Seas 7 to 10 ft.
.WED...N winds 20 to 25 kt. Seas 6 to 9 ft.
.WED NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft.
.THU...NE winds 5 to 10 kt, shifting to E in the afternoon. Seas
4 to 6 ft in N to NE swell.
.THU NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft.

$$

GMZ025-230230-
E Bay of Campeche including Campeche Bank-
1019 AM EDT Sun Oct 22 2017

.TODAY...E winds 5 to 10 kt. Seas 3 ft. Scattered showers and
isolated thunderstorms.
.TONIGHT...NE winds 10 to 15 kt. Seas 2 ft or less, becoming 3 to
4 ft late. Scattered showers and isolated thunderstorms.
.MON...NE to E winds 10 to 15 kt. Seas 3 to 4 ft. Scattered
showers and isolated thunderstorms.
.MON NIGHT...N to NE winds 5 to 10 kt Within 60 nm of coast of
Campeche, and N to NE 15 to 20 kt elsewhere. Seas 3 to 5 ft.
Scattered showers and isolated thunderstorms.
.TUE...N winds 20 to 25 kt. Seas 5 to 7 ft.
.TUE NIGHT...N to NE winds 20 to 25 kt. Seas 6 to 9 ft.
.WED...N to NE winds 20 to 25 kt. Seas 6 to 9 ft.
.WED NIGHT...N to NE winds 15 to 20 kt. Seas 6 to 8 ft.
.THU...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft.

$$

Forecaster McElroy



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