NHC Southwest Atlantic & Caribbean Sea Offshore Waters Forecast
Fri Apr 17 3:31 am
000
FZNT23 KNHC 170731
OFFNT3
Offshore Waters Forecast for the Caribbean Sea and Tropical
N Atlantic
NWS National Hurricane Center Miami, FL
331 AM EDT Fri Apr 17 2026
Offshore Waters Forecast for Caribbean Sea, and the Tropical N
Atlantic from 07N to 19N W of 55W.
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.
AMZ001-171945-
Synopsis for Caribbean Sea, and Tropical N Atlantic from 07N to
19N W of 55W
331 AM EDT Fri Apr 17 2026
.SYNOPSIS...A surface trough extending from Hispaniola northward
into the western Atlantic will move slowly westward and weaken
through Sat. This feature will disrupt the typical weather
pattern across the basin with a weaker than usual pressure
gradient. This weaker pressure gradient will support mainly
gentle to moderate winds through the remainder of the forecast
period. Fresh NE winds may develop early next week across the
Windward Passage associated with a late- season cold front moving
into Cuba.
$$
AMZ040-171945-
Caribbean N of 18N W of 85W including Yucatan Basin-
331 AM EDT Fri Apr 17 2026
.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT...E winds 10 kt. Seas 2 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.SUN...E winds 10 kt. Seas 3 ft or less.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.MON...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...NE to E winds 10 to 15 kt. Seas 3 to 5 ft S of 20N, and
5 to 7 ft N of 20N.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft S of 20N, and
6 to 8 ft N of 20N.
$$
AMZ041-171945-
Caribbean N of 20N E of 85W-
331 AM EDT Fri Apr 17 2026
.TODAY...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft or less.
.SAT...E winds 10 to 15 kt. Seas 3 ft or less.
.SAT NIGHT...W of 81W, E winds 10 kt. E of 81W, variable winds
less than 5 kt, becoming NE to E 10 to 15 kt late. Seas
3 ft or less. Scattered showers.
.SUN...E winds 10 to 15 kt. Seas 3 ft or less.
.SUN NIGHT...Variable winds less than 5 kt, becoming NE 10 to
15 kt late. Seas 3 ft or less.
.MON...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.MON NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE to E winds 15 to 20 kt W of 81W, and NE 15 to
20 kt E of 81W. Seas 3 to 5 ft.
$$
AMZ042-171945-
Caribbean from 18N-20N between 80W-85W including Cayman Basin-
331 AM EDT Fri Apr 17 2026
.TODAY...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
FZNT23 KNHC 170731
OFFNT3
Offshore Waters Forecast for the Caribbean Sea and Tropical
N Atlantic
NWS National Hurricane Center Miami, FL
331 AM EDT Fri Apr 17 2026
Offshore Waters Forecast for Caribbean Sea, and the Tropical N
Atlantic from 07N to 19N W of 55W.
Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.
AMZ001-171945-
Synopsis for Caribbean Sea, and Tropical N Atlantic from 07N to
19N W of 55W
331 AM EDT Fri Apr 17 2026
.SYNOPSIS...A surface trough extending from Hispaniola northward
into the western Atlantic will move slowly westward and weaken
through Sat. This feature will disrupt the typical weather
pattern across the basin with a weaker than usual pressure
gradient. This weaker pressure gradient will support mainly
gentle to moderate winds through the remainder of the forecast
period. Fresh NE winds may develop early next week across the
Windward Passage associated with a late- season cold front moving
into Cuba.
$$
AMZ040-171945-
Caribbean N of 18N W of 85W including Yucatan Basin-
331 AM EDT Fri Apr 17 2026
.TODAY...E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT...E winds 10 kt. Seas 2 to 4 ft.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft or less.
.SUN...E winds 10 kt. Seas 3 ft or less.
.SUN NIGHT...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.MON...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE...NE to E winds 10 to 15 kt. Seas 3 to 5 ft S of 20N, and
5 to 7 ft N of 20N.
.TUE NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft S of 20N, and
6 to 8 ft N of 20N.
$$
AMZ041-171945-
Caribbean N of 20N E of 85W-
331 AM EDT Fri Apr 17 2026
.TODAY...NE to E winds 10 to 15 kt. Seas 2 to 4 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 ft or less.
.SAT...E winds 10 to 15 kt. Seas 3 ft or less.
.SAT NIGHT...W of 81W, E winds 10 kt. E of 81W, variable winds
less than 5 kt, becoming NE to E 10 to 15 kt late. Seas
3 ft or less. Scattered showers.
.SUN...E winds 10 to 15 kt. Seas 3 ft or less.
.SUN NIGHT...Variable winds less than 5 kt, becoming NE 10 to
15 kt late. Seas 3 ft or less.
.MON...NE to E winds 10 to 15 kt. Seas 3 ft or less.
.MON NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.TUE NIGHT...NE to E winds 15 to 20 kt W of 81W, and NE 15 to
20 kt E of 81W. Seas 3 to 5 ft.
$$
AMZ042-171945-
Caribbean from 18N-20N between 80W-85W including Cayman Basin-
331 AM EDT Fri Apr 17 2026
.TODAY...NE to E winds 10 to 15 kt. Seas 3 to 5 ft.
.TONIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.