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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 291544
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Sun Mar 29 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 1200 UTC surface analysis and satellite imagery through
1500 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: The local pressure gradient
induced by broad high pressure across the Gulf of America will 
maintain fresh to near gale force N to NE gap winds across the 
Gulf of Tehuantepec through Mon, with gale-force winds occurring 
presently and expected to continue through late this morning, 
and then return briefly tonight. Very recent satellite altimeter
data measured 13-14 ft seas along 95W, suggesting that peak seas
farther to the W are likely 15-16 ft. Seas will remain rough to 
very rough during this period of gale- force winds. Please read 
the latest HIGH SEAS FORECAST issued by the National Hurricane 
Center at website 
- https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details.

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

A surface trough extends from 10N74.5W to 09N80W to 03N95W. The 
ITCZ extends from 03N96W to 02.5N103W to 06N132W to beyond 
06N140W. A southern hemispheric ITCZ is analyzed from 03.4S90W  
to 03S102W to beyond 03S120W. Scattered moderate isolated strong 
convection is noted from 03N to 06.5N between 83W and 92W, and from
04.5N to 06.5N between 128W and 140W.

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

Please see SPECIAL FEATURES above for more information on the 
Gulf of Tehuantepec gale-force gap wind event. Gale-force N to NE
winds currently extend from the Tehuantepec coast offshore to 
near 14N95.5W, where seas are estimated at 8 to 16 ft. Fresh to 
strong NE winds then extend farther offshore to 11N99W. 

Other than the gale-force gap wind event in the Gulf of
Tehuantepec, weak high pressure remains NW of the area, while
broad low pressure persists from Baja Norte southward across the
offshore waters of Baja Sur. This weak pressure pattern is
producing moderate to locally fresh NW winds offshore of Baja 
California Norte, as indicated by overnight ASCAT scatterometer 
data. Moderate SW to S winds are wrapping around the southern end
of the Baja peninsula near Cabo San Lucas, and into the entrance
of the Gulf of California. Light to gentle winds dominate the 
remainder of the waters. Moderate seas to 6 ft in northerly swell
prevail offshore Baja California and W of 110W, while slight seas
elsewhere away from and downwind of the Gulf of Tehuantepec.

For the forecast, aside from the Gulf of Tehuantepec gale-force
gap wind event, broad low pressure is expected to persist across
Baja California and the adjacent offshore waters through the
early part of the week. Gentle to moderate winds will prevail
across the majority of the waters through Wed. The pressure
gradient will tighten thereafter, as the broad low pressure
shifts into western Mexico, with winds offshore Baja California 
increasing to moderate to fresh. Slight to moderate seas will 
prevail through Thu.

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

Fresh to strong NE to E winds prevail over the Papagayo region 
per overnight ASCAT scatterometer data, and likely extend 
southwestward to near 91W, where seas are 5-8 ft. In the Gulf of 
Panama, moderate to locally fresh N-NE winds prevail, and extend 
downwind to 05N, where seas are 4 to 6 ft in S swell. Winds are 
light to gentle elsewhere. Moderate seas of 4 to 6 ft prevail 
across the remaining waters, except 6 to 7 ft across the waters 
south through southeast of the Galapagos Islands in fresh S 
swell.

For the forecast, fresh to strong NE to E winds will pulse in 
the Gulf of Papagayo downwind to near 92W through early Wed, then
become moderate to fresh thereafter. In the Gulf of Panama, N to NE
winds will continue to pulse through early Tue, building seas 
locally to rough at times. Rough to very rough seas in NW swell will
spread offshore Guatemala later this morning through tonight due
to a Gulf of Tehuantepec gale event. Slight to moderate seas 
will prevail otherwise through Tue night. Large SW swell will 
spread to the waters from offshore Ecuador to the Galapagos 
Islands Wed afternoon and build seas to 8-9 ft Thu and Thu 
night.

...REMAINDER OF THE AREA...

Complex low pressure remains centered NW of the local area, and
extends a leading cold front across the far NW waters along 138W. 
Gentle to moderate winds dominate the open waters under a 
relatively weak pressure gradient, except locally fresh from 06N 
to 15N and W of 126W per overnight ASCAT scatterometer data. 
Fresh to strong NE winds extending from a gale-force Gulf of 
Tehuantepec gap wind event extend into the waters to near 11N101W
where seas are locally to 8 ft. Moderate seas of 4 to 7 ft in
mixed swell prevail across the remainder of the waters.

For the forecast, gentle to moderate winds will dominate the open
waters through the next several days with weak high pressure 
across much of the area and broad low pressure across Baja 
California, while a series of frontal systems move into the NW
waters and weaken W of 130W. N to NE swell generated by a gale- 
force gap wind event in the Gulf of Tehuantepec will spread SW 
and impact the waters roughly N of 05N and E of 107W through Mon.
Fresh to strong winds will pulse across these waters as well 
extending downwind from Tehuantepec and into the trade wind zone 
east of 110W. Moderate seas will continue otherwise through the 
early part of the week. Large southerly swell will move into the 
waters S of the Equator mid- week. Also, rough seas may move into
the waters near 30N140W Thu in SW swell.

$$
Stripling