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Marine Graphical Composite Forecast Map for Atlantic Offshore Waters


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https://www.hurricanes.gov/marine/forecast

AMZ101-211500-
Synopsis for the SW N Atlantic including the Bahamas
1057 PM EDT Thu Aug 20 2026

.SYNOPSIS...A 1019 mb low is just north of the area near 32N49W, 
with a trough extending southwestward to 29N57W and to near 
27N70W. Scattered thunderstorms are along and near the trough from
27N to 30N between 52W and 58W. Isolated showers and 
thunderstorms are present from 25N to 31N between 46W and 52W. 
Elsewhere, a weak pressure gradient will support mostly light to 
gentle winds over most of the waters north of 23N going into early
next week. Moderate to fresh trades are expected south of about 
23N, especially off northern Hispaniola through the period. These 
trades may pulse to fresh to strong speeds off northern Hispaniola
at night through most of the forecast period. Meanwhile, the 
northern portion of tropical wave is expected to move through the 
eastern portion of the area early next week enhancing the trades 
some.