000
AXPZ20 KNHC 020330
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Wed Dec 2 2020

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 0000 UTC surface analysis and satellite imagery through
0300 UTC.

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

The monsoon trough extends from 09N84W to 07N92W to 10N112W to 
08N124W. The ITCZ continues from 08N124W to 08N132W to 10N140W. 
Scattered moderate convection is noted from 08N to 14N between 
99W and 122W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Gulf of Tehuantepec: Winds in the southern Gulf of Mexico are
veering towards east-southeast, and the forcing mechanism for
strong winds across the Chivela Pass into the Gulf of Tehuantepec
is weakening. Fresh to strong northerly winds are expected in the
Tehuantepec region overnight, becoming gentle to moderate on Wed. 

Gentle to moderate NW winds prevail west of Baja California Norte
with seas to 8 ft in long period NW swell north of Punta Eugenia.
Light to gentle winds will prevail elsewhere west of the Baja
peninsula through early Thu. Fresh to strong winds will funnel 
through the Baja California Norte passes into the offshore waters
Thu through Fri morning as strong high pressure builds over the 
Great Basin region. Strong northerly winds and high seas to 10 
ft are also expected in the northern Gulf of California on Thu. 
Fresh NW winds will prevail across most of the gulf through Sat.

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 evening. Seas generated by strong winds in the Gulf of 
Tehuantepec will propagate across the offshore waters of 
Guatemala and El Salvador overnight. Light to gentle winds are 
expected elsewhere north of the monsoon trough, with moderate to 
fresh S to SW winds south of the trough axis. 

REMAINDER OF THE AREA...

A broad ridge of high pressure continues to dominate the northern 
waters. The gradient between the ridge and lower pressures within
the monsoon trough is supporting moderate to fresh NE to E trade
winds, generally north of 10N and west of 120W. Seas are 6 to 8 ft
across this area.

Long period NW swell entering the NW part of the forecast area
will build seas to 8-10 ft. Another larger NW swell event will 
begin to propagate across the NW waters on Wed, with seas building
to 12-16 ft west of a line from 30N133W to 20N140W by Wed night.

$$
Mundell