[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 271709
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
109 PM EDT Fri Apr 27 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 1200 UTC surface analysis and satellite imagery through
1700 UTC.

...MONSOON TROUGH/ITCZ...

The monsoon trough extends from 07N11W to 01N24W. The ITCZ
continues from that location to 01S46W. Scattered moderate and
isolated strong convection is located from 03N to 07N east of
15W. Scattered moderate convection is located within 120 n mi
north of the boundaries between 22W and 26W.

...DISCUSSION...

GULF OF MEXICO...

A cold front is pushing southeastward across the Gulf of Mexico
today. This feature is currently located from northern Florida to
the central Gulf near 25N90W and then to the northeastern
portions of Mexico. Only a thin band of clouds and isolated
showers are along this boundary with light to moderate northerly
winds occurring in its wake. More significant showers and
thunderstorms exist over the far southeastern Gulf 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 and over western Cuba associated with a
surface trough. Otherwise, typical patches of low clouds and
isolated showers are moving westward across the area in the trade
wind flow. The trade winds are relatively light today 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 24N to 32N between 68W and 75W.
This activity is associated with a surface trough and an upper-
level jet. An upper-level low is producing scattered showers and
isolated thunderstorms from 25N to 30N between 43W and 46W.
Otherwise, 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 domninates over the central and eastern
portions of the region.

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

$$
Cangialosi
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