000
AXNT20 KNHC 030546
TWDAT 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1246 AM EST Sun Dec 3 2017

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 
0530 UTC.

...ITCZ/MONSOON TROUGH...

The monsoon trough extends from the African coast near 11N16W to 
09N20W. The Intertropical Convergence Zone extends from 09N20W to
06N32W to 07N45W, and resumes west of a surface trough near 08N50W
to 08N60W. The surface trough extends from 12N46W to 07N48W. 
Scattered moderate convection is from 06N-12N between 44W- 53W.

...DISCUSSION...

GULF OF MEXICO...

A weakening stationary front extends from the Florida panhandle 
near 30N86W to 26N96W. Scattered showers are within 60 nm of 
either side of the front, with moderate northeast winds are north 
of the front. Moderate southwesterly winds prevail south of the 
front. A surface trough is over the southwest Gulf with an axis 
extending from 25N96W to 18N94W with scattered showers. Light to 
gentle winds are west of the trough axis while mainly moderate 
easterly winds cover the remainder of the basin. Over the next 24 
hours the stationary front will dissipate. Return southeasterly 
flow will then dominate the basin through Tuesday, before a cold 
front reaches the northwest Gulf coast Tuesday night. 

CARIBBEAN SEA...

A pressure gradient over the western Caribbean is strong enough 
to support moderate to fresh northeasterly winds mainly west of
71W. Gentle to moderate winds prevail elsewhere. A surface trough
extends east of Puerto Rico from 18N64W to 15N67W with isolated
showers. Little change is expected over the next 24 hours. Winds 
will increase slightly over the western Caribbean by Sunday night
as the high to the northwest shifts eastward. 

...HISPANIOLA...

Fair weather prevails across the island at this time. Scattered
showers are possible during the next 24 hours as a frontal
boundary approaches from the north enhancing convection.

ATLANTIC OCEAN...

A cold front enters the area of discussion near 31N56W and 
extends to 21N69W. Moderate to fresh northeast winds are within 
about 500 nm west of the front. A complex low pressure system 
with a pair of low centers is just east of this front over the 
central Atlantic. The westernmost low of 1007 mb is centered near
29N52W. A surface trough extends from this low to near 22N61W. 
The easternmost low of 1011 mb is centered near 30N45W. A 
surface trough connects both lows. Scattered moderate convection 
is north of 23N between 41W-54W. Fresh easterly winds are north 
of the surface trough, while moderate to fresh southwest winds 
are south of the front. A 1021 mb high centered near 27N25W 
dominates the eastern Atlantic. Over the next 24 hours, the lows 
will move northeast and north of 31N. The cold front will 
continue to move eastward with showers. 

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

$$

ERA