000
AXPZ20 KNHC 280900
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Sat Dec 28 2019

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 140W. The following information is
based on satellite imagery, weather observations, radar, and
meteorological analysis.

Based on 0600 UTC surface analysis and satellite imagery through 
0830 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

The monsoon trough extends from 07N78W to 08N111W. The ITCZ 
continues from 08N111W to 10N118W to 07N140W. Scattered moderate 
convection and isolated tstms are from 06N to 10N between 96W 
and 113W. A surface trough extends from 10N118W to 16N117W. 
Scattered moderate isolated strong convection associated with 
the trough is from 14N to 20N between 110W and 116W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A weakening cold front approaching the southern tip of Baja 
California will stall and dissipate by tonight. NW swell 
associated with the front will propagate southeastward to south 
of the Jalisco offshore waters through Sunday night, and 
subside. Another cold front will dip southward from California 
into Baja California Norte offshore waters Monday afternoon, 
with large long period NW swell. High pressure building over the 
Gulf of Mexico early next week will support strong northerly gap 
winds in Tehuantepec early Tue through early Wed. Elsewhere, 
moderate to fresh NW winds are expected in the central and 
southern Gulf of California Sun and Mon.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR... 

Fresh NE to E winds are expected in the Gulf of Papagayo through 
Wed. Gentle to moderate S to SW winds will prevail elsewhere 
across the offshore waters of Costa Rica, Panama, Colombia, and 
Ecuador through Wed.

REMAINDER OF THE AREA...

A weakening cold front extending from the southern tip of Baja 
California Sur to along 19N between 115W and 130W will stall 
and dissipate by tonight. High pressure will build north of the 
frontal boundary through Mon. The gradient between this ridge 
and lower pressures near the ITCZ will support fresh trade winds 
in western waters north of the convergence zone. Fresh to strong 
trade winds will develop W of 130W by the middle of the week as 
the high strengthens. Another cold front will push southward Mon 
and Tue, primarily between 120W and 130W. Large long period NW 
swell associated with the front will sweep across the forecast 
area, with sea heights to 15 ft through the middle of the week.

$$
Mundell