[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 272339
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
739 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 1800 UTC surface analysis and satellite imagery through
2315 UTC.

...MONSOON TROUGH/ITCZ...

The monsoon trough extends from 08N13W to 03N20W to 02N26W. The
ITCZ continues from 02N26W to 00N40W to 01S48W. Scattered
moderate to isolated strong convection is located from 01S-04S
between 37W-40W. Isolated moderate convection is from 02N-02S
between 40W-50W.

...DISCUSSION...

GULF OF MEXICO...

A cold front extends from Jacksonville Florida near 31N81W to the
central Gulf of Mexico near 25N90W to N of Tampico Mexico near
24N98W. 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 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 67W-80W. This
activity is associated with a surface trough and an upper-level
jet. A 1018 mb low is producing scattered showers over the central
Atlantic from 23N-30N between 52W-58W. 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 will
domninate over the central and eastern Atlantic.

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

$$
Formosa
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