362
AXPZ20 KNHC 010406
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Mon Dec 1 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
0350 UTC.

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

The monsoon trough extends from 09N85W to 07N90W to 05N96W. The
ITCZ stretches from 05N96W to 07N106W to 10N112W then resumes
from 09N130W and beyond 07N140W. Numerous moderate to isolated
strong convection extends from 15N to 20N between 108W and 117W.
Scattered moderate convection is elsewhere from 05N to 09N E of
95W.

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

Higher pressure over Mexico is causing fresh gap winds in the
Gulf of Tehuantepec. A 1010 mb low to the SW of the Revillagigedo
Islands is leading to some showers and thunderstorms mainly near
the Islands. Fresh NE to E winds are occurring in this area and
extend NE to Cabo Corrientes and the mouth of the Gulf of
California. Locally higher winds and seas are likely in the
stronger convection, especially around Socorro Island. The
remainder of the basin is in a weak pressure gradient with light
to gentle winds. Moderate seas prevail for most offshore waters,
with slight seas in the Gulf of California.

For the forecast, fresh winds in the Gulf of Tehuantepec will
pulse to strong tonight and again late Tue into Wed morning. A
trough just SW of the Revillagigedo Islands will meander near
the islands through Tue, bringing showers and thunderstorms and
possibly locally strong winds and rough seas. Looking ahead,
moderate long-period NW swell will reach the Baja California
Norte offshore waters Tue, then subside starting Thu.

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

Surface ridging extending across the northern Caribbean supports
moderate to fresh NE winds in the Gulf of Papagayo. South of the
monsoon trough and between Ecuador and the Galapagos Islands,
winds are gentle to moderate from the S to SW. Elsewhere, light
to gentle winds prevail. Moderate seas dominate the regional
waters.

For the forecast, fresh gap winds will pulse nightly this week
in the Papagayo region. Moderate or lighter winds and moderate
seas are forecast elsewhere through the forecast period.

...REMAINDER OF THE AREA...

Weak low pressure of 1014 mb is near 28N133W with a weak cold
front trailing from this low to 24N135W over to 23N140W. Only
moderate to locally fresh winds accompany and follow the front
and low, and associated swell is supporting 8 to 11 ft seas N of
25N and W of 137W. A deep layer trough with an axis roughly
along 115W, from 10N to 20N is causing convection, described in
the Monsoon Trough section above. From 15N to 20N between 112W
and 122W, fresh winds are associated with this trough. The rest
of the tropical eastern Pacific is under the influence of modest
ridging, leaving winds mainly gentle, and seas moderate.

For the forecast, the weak cold front in NW waters will drift S
through Mon, then dissipate. Large NW swell will arrive to the
NW waters late today with seas peaking around 12 ft Mon. Rough
seas will reach E to 122W and S to 10N Tue and Tue night, before
decaying into late week.

$$
Ramos