[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 280446
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1246 AM EDT Sat Apr 28 2018

Tropical Weather Discussion for North America, Central America
Gulf of Mexico, Caribbean Sea, northern sections of South
America, and Atlantic Ocean to the African coast from the
Equator to 32N. The following information is based on satellite
imagery, weather observations, radar and meteorological analysis.

Based on 0000 UTC surface analysis and satellite imagery through
0515 UTC.

...MONSOON TROUGH/ITCZ...

The monsoon trough extends from 08N13W to 01N22W. The ITCZ
continues from 01N22W to 01N40W to 00N50W. Widely scattered
moderate convection is from 05S-04N between 36W-50W.

...DISCUSSION...

GULF OF MEXICO...

A cold front extends from Jacksonville Florida near 31N81W to the
central Gulf of Mexico near 23N90W to N of Tampico Mexico near
23N98W. This front is now mostly void of precipitation. Scattered
showers and isolated thunderstorms are over S Florida and the
Straits of Florida in association with the remnants of a front and
an upper-level jet. The cold front is expected to clear the
entire region by Saturday night with high pressure building in its
wake. Most of the region should experience fair weather and
relatively light winds/low seas this weekend.

CARIBBEAN SEA...

Scattered showers and thunderstorms are occurring over the far
southwestern Caribbean Sea near the coasts of Colombia, Panama,
and Costa Rica. This activity is primarily associated with the
monsoon trough. Similar activity is occurring over the far
northwestern Caribbean to include the E Yucatan Peninsula, Belize,
central Honduras, and W Cuba. Otherwise, typical patches of low
clouds and isolated showers are moving westward across the area in
the trade wind flow, especially over Hispaniola. The trade winds
are relatively light due to low pressure to the north of the
area, and these winds should remain lighter-than-normal for much
of this weekend.

ATLANTIC OCEAN...

A fairly large area of showers and thunderstorms are occurring
over the western Atlantic from 20N-30N between 65W-80W. This
activity is associated with a surface trough and an upper-level
jet. A weak 1020 mb low is centered near 27N55W. This low is now
void of precipitation. Further E, generally quiet weather
conditions exist across the basin supported by surface high
pressure and dry air in the middle and upper levels of the
atmosphere. Looking ahead to the weekend, low pressure is expected
to remain over the western Atlantic, while high pressure will
domninate over the central and eastern Atlantic.

For additional information please visit
http://www.hurricanes.gov/marine

$$
Formosa
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