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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 100322
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Tue Nov 10 2026

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
0255 UTC.

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

The monsoon trough extends from 08N78W to a 1010 mb low pres near
10N92W to 08N95W. The ITCZ stretches from 08N95W to 06N110W and
to 13N127W. The monsoon trough resumes from 08N132W to beyond
06N140W. Scattered moderate to isolated strong convection is
observed south of 15N and west of 100W.

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

The tight pressure gradient between a broad high pressure system
over the southern United States and lower pressures in the deep 
tropics continue to support fresh to strong northerly winds and
seas of 5-8 ft across the Gulf of Tehuantepec basin. Meanwhile,
weak high pressure dominates the remainder of the Mexican offshore
waters sustaining moderate or weaker winds. Long-period NW swell
is producing seas of 7-11 ft in the offshore waters of Baja 
California, with the highest seas occurring west of Guadalupe 
island. Elsewhere, slight to moderate seas prevail.

For the forecast, fresh northerly winds and rough seas around 8 
ft will pulse to strong at night across the Gulf of Tehuantepec 
through the remainder of the week. Strong gap winds to near gale
force are expected Tue night. Rough seas in NW swell will 
continue across the Baja offshore waters through Tue as new swell
arrives tonight, then begin to diminish Tue night through Thu. 
Looking ahead, fresh to strong winds and rough seas approaching 
12 ft are expected to reach the offshore waters of Baja 
California on Fri, associated with a frontal system, with yet 
larger NW swell arriving Sat.

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

High pressure centered north of the the Caribbean supports
moderate to fresh easterly trade winds and moderate seas in the
Gulf of Papagayo region. Moderate northerly winds and seas of 2-4
ft are occurring in the Gulf of Panama. Elsewhere, moderate or
weaker winds and moderate seas prevail.

For the forecast, fresh to locally strong easterly trade winds 
will funnel across the Papagayo region and extend to 90W through 
Wed night, then diminish into the weekend. Moderate to locally 
fresh winds will pulse in the western Gulf of Panama through Wed 
morning. Otherwise, moderate or weaker winds, and moderate seas 
in mixed SW to W swell, will prevail.

...REMAINDER OF THE AREA...

A broad subtropical ridge centered on a 1024 mb high near 
30N136W dominates the eastern Pacific basin, and supports 
moderate to fresh easterly winds north of 10N, and west of 120W.
Seas N of 10N and W of 120W are 8 to 11 ft in NW swell. A broad 
surface trough from 07N131W to 15N126W is producing scattered
moderate to isolated strong convection from 07N to 16N and 
between 115W and 133W, where fresh to locally strong winds 
prevail. Meanwhile, moderate to fresh SE winds and seas to 10 ft
are occurring south of 03N between 100W and 120W. Elsewhere, 
moderate or weaker winds and moderate seas prevail.

For the forecast, high pressure will support moderate to fresh
easterly winds and rough seas across the trade waters during the
next few days. New large NW swell moving into the north and 
western waters will reach from 10N140W to the Revillagigedo 
Islands by Tue night. The mixed swell over the equatorial waters 
will persist for the next several days. Looking ahead, a strong 
cold front will reach our NW border at 30N140W by midday Wed, 
bringing with it fresh to strong NW winds and very large seas in 
NW swell north of 20N through the end of the week. Even larger 
reinforcing NW swell may arrive Fri afternoon or evening to the 
NW waters, possibly in excess of 20 ft.

$$
Delgado