[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 190600
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
100 AM EST MON DEC 19 2016

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.

...SPECIAL FEATURES...

As of 0000 UTC, a strong cold front extended from the Florida
Panhandle at 30N85W to 26N92W to Veracruz Mexico at 19N96W.
Northerly gale-force winds are over the western Gulf of Mexico
south of 25N behind the front with seas 8 to 13 feet. Please read
the Atlantic high seas forecast, that is listed under AWIPS/WMO
headers MIAHSFAT2/FZNT02 KNHC, for more details.

A tight pressure gradient between high pressure building north of
the Caribbean and lower pressure associated with climatological
low pressure over Colombia will support gale-force winds over
portions of the south central Caribbean until Tuesday at 1800
UTC. Please read the Atlantic high seas forecast, that is listed
under AWIPS/WMO headers MIAHSFAT2/FZNT02 KNHC, for more details.

...THE ITCZ/MONSOON TROUGH...

The monsoon trough extends westward from the African coast near
06N11W to 04N15W. The ITCZ continues from 04N15W to 02N30W to
03N40W to the coast of South America near 03N51W. Isolated
moderate convection is from 02S to 14N between 30W and 54W, and
from the equator to 08N, east of 15W.

...DISCUSSION...

...THE GULF OF MEXICO...

A cold front extends from the Florida panhandle, over the central
Gulf, to near Veracruz Mexico. Strong high pressure north of this
front supports strong to near gale northerly winds north of 25N
behind the front, and gale force northerly winds behind the front
south of 25N. Please refer to the special features section for
more details about this gale event. Scattered moderate convection
is within 120 nm of either side of the front north of 26N.
Southeast of the front, mainly gentle to moderate southerly winds
are occurring. Over the next several hours, the front will become
stationary. Then by this afternoon, the eastern portion of the
front will resume moving southeastward.

...THE CARIBBEAN SEA...

The pressure gradient between high pressure building north of the
Caribbean and lower pressures over Colombia are supporting Gale
force winds over portions of the south-central Caribbean. Please
refer to the special features section for more details. Fresh to
strong trades cover the remainder of the central and eastern
Caribbean, with moderate to fresh trades cover the northwestern
Caribbean. No deep convection is occurring over the basin, with
mainly scattered showers in the trades over the central and eastern
Caribbean. Little change is expected over the next 24 hours.


...HISPANIOLA...

Deep-layer high pressure will maintain a relatively quiet weather
pattern over the island for the next several days, with only a
few passing showers expected in the trade wind flow.

...THE ATLANTIC OCEAN...

A weakening cold front extends SW from 31N36W to 28N50W. Fresh to
strong NE winds are north of this front. Broad high pressure
dominates the remainder of the Atlantic, with fresh to locally
strong trades covering a large area south of 25N, east of the
Bahamas all the way to near the Cape Verde Islands.

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

$$
Latto
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