000
AXPZ20 KNHC 020916
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 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 0600 UTC surface analysis and satellite imagery through
0900 UTC.

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

The monsoon trough extends from 09N84W to 06N92W to 07N101W to
11N110W to 09N125W. The ITCZ continues from 09N125W to beyond 
08N140W. Scattered moderate isolated strong convection is north
of 06N between 81W and 85W. Scattered moderate convection is 
noted from 08N to 13N between 102W and 122W.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO... 

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 locally 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 expected in the northern Gulf of California on Thu.
Fresh NW winds will prevail across most of the gulf through Sat.

Winds and seas will diminish in the Gulf of Tehuantepec today. 
High pressure building behind a cold front in the western Gulf of
Mexico on Thu will induce strong northerly gap winds across the
Tehuantepec region, with only slight changes in forcing expected
through Sun night. Model guidance indicates highest winds should
occur Sat night, possibly reaching minimal gale force.

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
this evening. 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, through the upcoming weekend. 

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 later today, with highest seas west of a line 
from 30N133W to 20N140W by tonight. This swell will propagate
east-southeast and decay through Fri.

$$
Mundell