Offshore Forecast
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426
FZNT24 KNHC 200821
OFFNT4

Offshore Waters Forecast for the Gulf of Mexico
NWS National Hurricane Center Miami, FL
421 AM EDT Sun Aug 20 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.

GMZ001-202030-
Synopsis for the Gulf of Mexico
421 AM EDT Sun Aug 20 2017

.SYNOPSIS...The northern extent of a tropical wave is moving
through the Straits of Florida currently will enter the south
central Gulf later today, moving across the basin through early
next week. Otherwise, a weak ridge will extend westward along 28N
both ahead of and behind the tropical wave. The remnants of
Tropical Depression Harvey, currently across the S central
Caribbean, will move WNW through the NW Caribbean and Yucatan
Peninsula Tue, then emerge into the Bay of Campeche Tue night into
Wed.

$$

GMZ011-202030-
NW Gulf including Stetson Bank-
421 AM EDT Sun Aug 20 2017

.TODAY...E to SE winds 5 to 10 kt. Seas 2 ft or less.
.TONIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less.
.MON...E to SE winds 10 kt. Seas 2 ft or less.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less,
becoming 3 ft late.
.TUE...E winds 5 to 10 kt. Seas 3 ft in the morning, becoming
2 ft or less.
.TUE NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less.
.WED...SE winds 5 to 10 kt. Seas 2 ft or less.
.WED NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less.
.THU...E to SE winds 5 to 10 kt. Seas 2 ft or less.
.THU NIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less,
becoming 3 ft late.

$$

GMZ013-202030-
N Central Gulf including Flower Garden Banks Marine Sanctuary-
421 AM EDT Sun Aug 20 2017

.TODAY...E winds 5 to 10 kt. Seas 2 ft or less.
.TONIGHT...E to SE winds 10 to 15 kt. Seas 2 ft or less.
.MON...E winds 10 to 15 kt. Seas 2 ft or less.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 3 ft.
.TUE...E to SE winds 5 to 10 kt. Seas 3 ft.
.TUE NIGHT...E winds 5 to 10 kt. Seas 3 ft.
.WED...E winds 5 to 10 kt. Seas 3 ft.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 ft or less.
.THU...E winds 5 to 10 kt. Seas 2 ft or less.
.THU NIGHT...E to SE winds 5 to 10 kt. Seas 2 ft or less.

$$

GMZ015-202030-
NE Gulf N of 25N E of 87W-
421 AM EDT Sun Aug 20 2017

.TODAY...NE to E winds 10 to 15 kt. Seas 2 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.MON...E to SE winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 ft.
.TUE NIGHT...NE to E winds 5 to 10 kt. Seas 3 ft.
.WED...NE to E winds 5 to 10 kt. Seas 2 ft or less.
.WED NIGHT...NE winds 5 to 10 kt. Seas 2 ft or less.
.THU...E winds 5 to 10 kt. Seas 2 ft or less.
.THU NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less.

$$

GMZ017-202030-
W Central Gulf from 22N to 26N W of 94W-
421 AM EDT Sun Aug 20 2017

.TODAY...E to SE winds 5 to 10 kt. Seas 2 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less.
.MON...SE winds 5 to 10 kt. Seas 2 ft or less.
.MON NIGHT...E to SE winds 10 to 15 kt. Seas 2 to 3 ft.
.TUE...E winds 5 to 10 kt. Seas 2 ft or less.
.TUE NIGHT...E winds 5 to 10 kt. Seas 3 ft.
.WED...NE to E winds 5 to 10 kt. Seas 3 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.THU...E to SE winds 5 to 10 kt. Seas 3 ft.
.THU NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.

$$

GMZ019-202030-
Central Gulf from 22N to 26N between 87W and 94W-
421 AM EDT Sun Aug 20 2017

.TODAY...E winds 5 to 10 kt. Seas 2 ft or less.
.TONIGHT...E winds 10 to 15 kt. Seas 2 ft or less, becoming 3 ft
late.
.MON...E winds 10 to 15 kt. Seas 3 ft.
.MON NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft.
.THU...E to SE winds 10 to 15 kt. Seas 3 ft in the morning,
becoming 2 ft or less.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 ft or less, becoming
3 ft late.

$$

GMZ021-202030-
E Gulf from 22N to 25N E of 87W including Straits of Florida-
421 AM EDT Sun Aug 20 2017

.TODAY...NE to E winds 10 to 15 kt. Seas 2 ft or less.
.TONIGHT...E winds 15 to 20 kt. Seas 3 to 4 ft.
.MON...E to SE winds 15 to 20 kt. Seas 3 to 5 ft.
.MON NIGHT...E winds 15 to 20 kt. Seas 3 to 4 ft.
.TUE...E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE to E winds 5 to 10 kt. Seas 3 to 4 ft.
.WED...E winds 5 to 10 kt. Seas 2 ft or less.
.WED NIGHT...NE to E winds less than 5 kt. Seas 2 ft or less.
.THU...SE to S winds 5 to 10 kt. Seas 2 ft or less.
.THU NIGHT...SE to S winds 5 to 10 kt. Seas 2 ft or less.

$$

GMZ023-202030-
SW Gulf S of 22N W of 94W-
421 AM EDT Sun Aug 20 2017

.TODAY...N to NE winds less than 5 kt. Seas 2 ft or less.
.TONIGHT...NE winds 5 to 10 kt. Seas 2 ft or less.
.MON...N to NE winds 5 to 10 kt. Seas 2 ft or less.
.MON NIGHT...NE winds 5 to 10 kt. Seas 2 ft or less.
.TUE...N winds 5 to 10 kt. Seas 2 ft or less, becoming 3 ft in
the afternoon.
.TUE NIGHT...N to NE winds 10 to 15 kt. Seas 3 ft.
.WED...N winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft.
.THU...NE to E winds 15 to 20 kt. Seas 3 to 5 ft.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.

$$

GMZ025-202030-
E Bay of Campeche including Campeche Bank-
421 AM EDT Sun Aug 20 2017

.TODAY...E winds 10 to 15 kt. Seas 2 ft or less.
.TONIGHT...NE winds 15 to 20 kt. Seas 2 to 3 ft.
.MON...E winds 10 to 15 kt. Seas 2 to 4 ft.
.MON NIGHT...NE winds 15 to 20 kt. Seas 2 to 4 ft.
.TUE...NE to E winds 10 to 15 kt. Seas 3 to 4 ft.
.TUE NIGHT...NE winds 15 to 20 kt. Seas 3 to 4 ft.
.WED...E winds 15 to 20 kt. Seas 3 to 5 ft.
.WED NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 5 ft.
.THU...E to SE winds 15 to 20 kt. Seas 3 to 5 ft.
.THU NIGHT...NE to E winds 15 to 20 kt. Seas 3 to 4 ft.

$$

Forecaster Christensen



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