061
AXPZ20 KNHC 272125
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Thu Nov 27 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
2105 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: A cold front is moving across
the Gulf of America and will depart the basin tonight. The
pressure gradient between strong high pressure building in the
wake of the front and the eastern north Pacific monsoon trough is
supporting strong to gale force gap winds and rough seas in the
Gulf of Tehuantepec. A recent scatterometer satellite pass
captured a large area of strong to near gale-force N winds. A
plume of fresh to strong N to NE gap winds and seas of 8 to 10 ft
will expand downstream to 10N and 99W by Fri morning. Winds and
seas will diminish Sat as the high pressure north of the area
shifts eastward and the pressure gradient loosens. Please refer
to the latest NHC High Seas Forecast at website
https://www.hurricanes.gov/text/MIAHSFEP2.shtml for more details.

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

The monsoon trough extends from the coast of Costa Rica near
09N84W to 07N100W to 09N120W. The ITCZ stretches from 09N120W to
beyond 07N140W. Scattered moderate and isolated strong
convection is observed from 03N to 08N and east of 87W and from
07N to 17N and between 108W and 125W.

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

Please refer to the Special Features section for details on an
upcoming Gale Warning in the Gulf of Tehuantepec.

Aside from the Gulf of Tehuantepec, a 1025 mb high pressure
system near 35N133W extends southeastward to the Revillagigedo
Islands. Moderate NW winds and slight to moderate seas are found
in the Gulf of California and off Cabo Corrientes. Elsewhere in
the Mexican offshore waters, gentle to moderate winds and
moderate seas are prevalent.

For the forecast, gale force gap winds in the Gulf of Tehuantepec
will continue through Fri night, resulting in rough to very
seas. Fresh to strong winds will then persist in the Gulf of
Tehuantepec into Sat night before diminishing. Meanwhile, surface
trough along 117W will produce fresh to locally strong winds and
rough seas this weekend into Mon. A weak cold front or trough
will move into the waters off northern Baja California, possibly
supporting moderate to fresh winds near the entrance to the Gulf
of California to Cabo San Lucas to the Revillagigedo Islands Sun
and Sun night. No significant swell events are forecast through
the upcoming weekend.

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

Strong high pressure north of the Caribbean basin continues to
support fresh to strong NE winds across the Gulf of Papagayo
region, extending downstream to 90W. Seas in these waters are 5-7
ft. Farther south, moderate to locally fresh southerly winds and
moderate seas are occurring south of the monsoon trough.
Elsewhere, gentle to locally moderate winds and slight to
moderate seas prevail.

For the forecast, high pressure north of the area will support fresh
to strong NE winds and rough seas in the Papagayo region through
Sun. N winds will pulse to fresh speeds at night in the Gulf of
Panama through Fri night. Moderate or lighter winds are forecast
elsewhere through the remainder of the week and into the weekend.
While no significant swells are forecast, seas will build
slightly in the Papagayo region due to the fresh to strong winds,
and offshore Guatemala to locally rough through Fri due to a
Gulf of Tehuantepec gale force gap wind event.

...REMAINDER OF THE AREA...

A subtropical ridge centered north of the remainder of the
tropical eastern Pacific and lower pressure in the deep tropics
support moderate to fresh easterly trade winds north of the
monsoon trough and ITCZ to 20N. Seas in these waters are 6-9 ft.
South of the monsoon trough and ITCZ, moderate to locally fresh
southerly winds and seas of 6-8 ft are prevalent. Elsewhere,
moderate or weaker winds and moderate seas prevail.

For the forecast, fresh trade winds and 7-9 ft seas in the trade
wind belt will gradually decrease through Fri as the high
pressure north of the area weakens. A new set of NW swell with
rough seas will arrive Fri and into weekend north of 25N with
seas to 10 ft. Meanwhile, surface trough along 117W will produce
fresh to locally strong winds and rough seas this weekend into
Mon. Another large set of NW swell may arrive to the NW waters
by the end of the weekend and into early next week.

$$
Delgado