000
AXPZ20 KNHC 042030
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Thu Dec 4 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 1800 UTC surface analysis and satellite imagery through
2000 UTC.

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

The monsoon trough extends from 08N80W to 09N102W. The ITCZ runs
from 09N102W to 09N125W to beyond 06N140W. Scattered moderate 
convection is from 03N to 09N E of 88W and from 07N to 12N and 
118W and 126W.

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

Fresh gap winds are noted in the northern Gulf of California, and
fresh NW winds have developed just offshore Mazatlan, Mexico. 
Otherwise, mainly gentle winds prevail. Moderate seas prevail 
across the Mexican offshore waters and the northern Gulf of 
California, while slight seas prevail across the southern half of
the Gulf of California.

For the forecast, a surface trough west of the Revillagigedo 
Islands will keep scattered thunderstorms near the islands 
through Fri. Moderate to fresh N winds will diminish in the 
northern Gulf of California tonight. High pressure building 
southward toward the region will lead to increasing winds for the
Gulf of California and the Gulf of Tehunatepec for the start of 
next week. Mon and Tue, strong gap winds are forecast in the 
Tehuantepec region. 

...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 and moderate seas in the Papagayo 
region. S of the monsoon trough, gentle S to SW winds and 
moderate seas prevail. Elsewhere, mainly light winds with 
moderate seas prevail.

For the forecast, moderate to fresh gap winds will persist near 
the Papagayo region tonight. Light to gentle winds and slight to
moderate seas are expected elsewhere through early next week. 

...REMAINDER OF THE AREA...

A trough axis extending along 120W between 10N and 28N is 
inducing scattered moderate convection from 12N to 18N between 
118W and 126W. To the west of this axis, moderate winds and seas,
dominate N of the ITCZ. Elsewhere, gentle winds and moderate 
seas prevail. 

For the forecast, moderate to fresh trades will dominate N of 
the ITCZ to 25N and W of 125W into the weekend, with moderate or 
weaker winds elsewhere. Moderate seas will generally prevail, but
NW swell combined with easterly wind waves will lead to rough 
seas Fri night N of 20N and W of 135W. 
 
$$
Konarik