768
AXPZ20 KNHC 011519
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 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 1200 UTC surface analysis and satellite imagery through
1500 UTC.

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

The monsoon trough extends from 10N84W to 07N96W. The ITCZ
stretches from 07N96W to 10N112W then resumes from 11N126W and
continues beyond 09N140W. Scattered moderate convection is from
04N to 10N E of 98W and from 06N to 12N W of 134W.

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

Strong gap winds funneling through the Chivela Pass are impacting
the Gulf of Tehuantepec. A surface trough SW of the
Revillagigedo Islands continues to generate showers and
thunderstorms mainly from 14N to 22N between 110W and 116W. Fresh
N winds are occurring from the mouth of the Gulf of California
SW to the Revillagigedo Islands. Otherwise, a weak pressure
gradient supports mainly gentle winds and moderate seas, except
for slight seas in the Gulf of California.

For the forecast, strong N to NE winds in the Gulf of
Tehuantepec will continue this morning and pulse 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. Looking ahead, moderate long-period NW swell will
reach the Baja California Norte offshore waters Tue, then
subside Thu. Otherwise, moderate to fresh N winds will pulse in
the northern Gulf of California through Fri night.

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

Surface ridging extending across the northern Caribbean supports
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 encompass the entire region.

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

...REMAINDER OF THE AREA...

Low pressure of 106 mb is near 25N135W with a stalling cold
front trailing from this low to 22N134W over to 21N140W. Fresh E
winds are noted N of the low along with rough seas. A surface
trough to the SW of the Revillagigedo Islands continues to
generate showers and thunderstorms mainly from 14N to 22N
between 110W and 115W. With this convection strong gusty winds
and rough seas are possible, with a zone fo moderate to fresh NE
winds NW of the trough from 14N to 22N between 115W and 123W.
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 low pressure and associated front will
dissipate by tonight. Large NW swell will continue to spread
southeastward across the NW subtropical and tropical waters today
with seas peaking around 12 ft. Rough seas will reach E to 121W
and S to 09N Tue and Tue night, before decaying into late week.

$$
Konarik