[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 301206
TWDAT

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
706 AM EST Sun Dec 30 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 0600 UTC surface analysis and satellite imagery through
1145 UTC.

...SPECIAL FEATURES...

...CARIBBEAN GALE WARNING...
Strong to near gale force trade winds will prevail across the south
central Caribbean through Thu, increasing to gale force along the NW
coast of Colombia late each night through the middle of each morning
before diminishing. Please refer to the High Seas forecast product under
the AWIPS/WMO headers HSFAT2/FZNT02 KNHC for more details.

...MONSOON TROUGH/ITCZ...

The monsoon trough extends from 06N11W to 03N20W. The ITCZ
continues from that point to 02N40W to 0N49W. Scattered moderate
convection is within 120 nm either side of the ITCZ between 14W
and 43W.

GULF OF MEXICO...

A warm front extends from the western Florida panhandle SW to
29N88W where it transitions to a stationary front that continues
along 27N94W to the SW Gulf coast of Mexico near 20N96W. Although
there is no significant convection associated with the front,
dense fog is being reported west of the boundary, over the NW
Gulf waters. Latest sactterometer data depict fresh to strong
winds along the NE coast of Mexico, however seas are to 6 ft at
the time. Gentle to moderate SE winds prevail elsewhere ahead of
the front.

The stationary front will weaken with the remnants drifting W and
gradually dissipating through Sunday night. A cold front will
move off the Texas coast around sunrise on Monday, reach from the
Mississippi Delta to Veracruz Mexico on Tuesday and from the
Florida Big Bend to the Bay of Campeche on Wednesday. Strong to
near-gale northerly winds are forecast to develop across the
western gulf waters on Tuesday night, increasing to gale force
along the coast of Mexico near Veracruz on Wednesday night.

CARIBBEAN SEA...

Refer to the section above for details about the Gale Warning
for the south-central Caribbean. Otherwise, fresh to strong
easterly trades are forecast elsewhere through this morning, then
moderate to fresh trades are expected through Thu.

ATLANTIC OCEAN...

A 1026 mb high centered near 27N62W covers the waters of the SW N
Atlc and central Atlc supporting fair weather and light to gentle
winds N of 23N W of 45W. South of 23N, the gradient slightly
tightens with lower pressure in the Caribbean, thus supporting
moderate NE to E winds. Over the NE waters, a cold front extends
from 30N26W to 20N35W where it starts to dissipate. Isolated
showers are within 90 nm either side of the front mainly north of
of 27N.

The ridge over the west Atlantic will shift south with fresh to
strong trades prevailing through the weekend. A cold front will
move slowly into the northern Atlantic waters on Sunday. The
front will stall and gradually dissipate from 28N65W to 31N74W
through Monday night. Fresh southerly flow will set up north of
the ridge on Tuesday ahead of a second cold front moving off the
north Florida coast on Tuesday night. This second front will begin
to stall from 31N74W to Central Florida on Thursday.

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

$$
Ramos
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