Forecast Discussion

Discussion valid from 11/12/2019 to 12/12/2019

Departamento Meteorologico Aruba

Broad surface low pressure covers the SW corner of the Caribbean
Sea. Satellite data and the GFS forecast for 250 mb show upper
level anticyclonic wind flow in the SW corner of the Caribbean
Sea. The GFS model forecasts show E-to-SE wind flow for 500 mb,
and NE wind flow for 700 mb, across the same area. Precipitation:
isolated moderate rainshowers are from 15N southward from 80W

An upper level trough starts in the Atlantic Ocean, near 24N55W,
and it continues to 20N61W, into the NE Caribbean Sea, to 18N64W,
and to 15N66W. Precipitation: Rainshowers are possible from 17N
to 20N between 60W and 65W.

Rainshowers are possible in the easterly trade wind flow,
elsewhere, from 18N southward from 80W eastward.

Strong high pressure in the west central Atlantic Ocean will dominate
the Caribbean Sea. Expect: building seas and fresh to strong winds
across the central and eastern Caribbean Sea sections, and in the
Tropical N Atlantic Ocean. The wind speeds and the sea heights
will subside gradually, on Thursday and Friday, as the high
pressure that is to the N of the area shifts eastward.

Next update will be issued 12/12/2019