339
AXPZ20 KNHC 030233
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Wed Dec 3 2025

Tropical Weather Discussion for the eastern Pacific Ocean from
03.4S to 30N, east of 120W including the Gulf of California, and
from the Equator to 30N, between 120W and 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
0230 UTC.

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

The monsoon trough extends from 09N84W to 07N105W. The ITCZ runs
from 07N105W to 10N120W, then resumes from 11N126W to beyond
07N140W. A surface trough breaks the ITCZ, analyzed from 20N119W
to 11N123W. Scattered moderate convection is in the vicinity of
the trough between 110W-124W. Scattered moderate convection noted
from 07N to 11N E of 96W, and from 06N to 10N W of 125W.

...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A surface trough SW of the Revillagigedo Islands is aiding in
scattered moderate convection in the vicinity of Socorro Island.
Moderate E winds are also present in this area. Fresh to strong gap
winds are noted in the Gulf of Tehuantepec. Elsewhere, gentle
winds dominate N of 18N, with light and variable winds to the
south. Seas are moderate, except slight S of 18N and in the Gulf
of California.

For the forecast, fresh to strong N winds in the Gulf of
Tehuantepec will pulse through tonight, then subside to gentle
Wed. A surface trough just southwest of the Revillagigedo Islands
will keep thunderstorms near the islands through Thu. Moderate
to fresh N winds will pulse nightly in the northern Gulf of
California through Thu night.

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

Surface ridging extending across the northern Caribbean Sea
supports moderate to fresh NE winds and moderate seas in the
Gulf of Papagayo. S of the monsoon trough, gentle to moderate S
to SW winds and moderate seas exist. Elsewhere, mainly winds
with moderate seas in slight swells prevail.

For the forecast, moderate to fresh gap winds will persist near
the Papagayo region into Thu night. Moderate or lighter winds
and slight to moderate seas are expected elsewhere through the
weekend.

...REMAINDER OF THE AREA...

A mid-level trough is noted N of 20N between 120W and 130W,
inducing scattered moderate convection from 21N to 26N between
120W and 128W. A surface trough is from 20N119W to 11N123W.
Scattered moderate convection is in the vicinity of the trough
between 110W-124W.

Broad and relatively weak ridging extending south from a 1029 mb
high pressure centered off Oregon is supporting mainly gentle
winds across the basin, with moderate seas. A zone of moderate NE
winds and rough seas, in primarily NW swell, is noted W of 120W
and N of 07N.

For the forecast, large NW swell will cause rough seas to persist
tonight W of 120W and N of 07N, then gradually decay through
Wed. Thereafter, moderate seas will prevail into the weekend.
Moderate to fresh trades will dominate N of the ITCZ to 20N and W
of 120W through the week, with moderate or weaker winds
elsewhere.

$$
ERA