Skip Navigation Links
National Oceanic and Atmospheric Administration logo National Weather Service logo United States Department of Commerce

Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 062029
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Mon Apr 6 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 1800 UTC surface analysis and satellite imagery through
2000 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: Building ridging over NE 
Mexico supports strong to gale-force northerly winds and rough 
seas to 13 ft across the Gulf of Tehuantepec. Gale force winds 
will continue through early Tue morning with seas building to 
around 15 ft tonight into early Tue. Gusty winds to near storm 
force may occur. Seas generated from this gap wind event will 
spread well away from the Tehuantepec area, with seas 8 ft or 
greater reaching as far south as 10N and 100W tonight into Tue. 
Winds and seas will quickly diminish Tue. 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 07N78W to 09N86W to 05N95W. The 
ITCZ stretches from 05N95W to 09N127W to beyond 08N140W. A 
second ITCZ is located south of the Equator and mainly S of the
discussion waters, passing through 03.4S100W to 02.5S104W to
beyond 03.4S110W. Scattered moderate isolated strong convection
is observed from 04N to 09.5N between 77W and 80W, and from 03N
to 06N between 81W and 88W. Similar convection is from 05N to
12.5N between 117W and 133W.

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

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

Aside from the Gale Warning in the Gulf of Tehuantepec, a weak 
NW to SE ridge extends along the outer offshore waters boundary 
with troughing near Baja California. This pattern supports 
moderate NW-N winds from Cabo San Lazaro northward offshore Baja
California. Winds are mainly light to gentle across the 
remainder of the waters away from the Gulf of Tehuantepec, 
including in the Gulf of California. Seas are mainly 5-6 ft away 
from the Gulf of Tehuantepec in a mix of S and NW swells, with 
seas 3 ft or less in the Gulf of California away from the 
entrance.

For the forecast, other than the Gale Warning in the Gulf of 
Tehuantepec, winds will pulse there to fresh to strong once the
gale ends on Tue. Moderate to locally fresh NW winds and 
moderate seas are expected off Baja California through Thu night.
Winds may pulse to strong N of Punta Eugenia at times through Thu
evening. Moderate to fresh SW winds may develop in the northern 
Gulf of California Fri night ahead of a cold front approaching
Baja California Norte, then to fresh to strong Sat night. Winds 
will be moderate or weaker elsewhere through the next several
days. Little change in seas is forecast through the week.

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

A building ridge over the NW Gulf of America forces fresh easterly
winds across the Gulf of Papagayo region, extending WSW to near
09N92W. Seas in these waters are 5-6 ft. Farther east, moderate 
N-NE winds and 4-5 ft seas are present in the Gulf of Panama. 
Light to gentle winds and moderate seas dominate the remainder of
the offshore forecast waters. Some clusters of deep convection 
are from offshore Colombia and Panama to southern Costa Rica as 
described above.

For the forecast, fresh to strong gap winds are expected during the 
nighttime and early morning hours in the Papagayo region and 
downwind to about 90W through the forecast period. Moderate to 
locally fresh northerly winds are forecast in the Gulf of Panama 
through the week. A gap wind event in the Tehuantepec region 
will produce seas to 9 ft in the far offshore waters of Guatemala
tonight through Tue. Light to gentle winds and moderate seas 
will prevail elsewhere.

...REMAINDER OF THE AREA...

A weak cold front is over the far NW waters of the tropical 
eastern Pacific, extending from 30N136W to 25N140W. A few weak 
showers are noted ahead of this boundary. Farther S, a deep upper
level trough continues to produce abundant cloudiness and some 
showers over the W-central and northern waters, extending from S 
of the Hawaiian Islands northeastward to Baja California and into
the SW United States. Elsewhere at the surface, a weak high 
pressure system over the northern waters with 1022 mb high 
pressure centered near 31N126W dominates the remainder of the 
basin. Moderate to locally fresh easterly winds are occurring 
from roughly 09N to 15N and W of 110W, highest in deep convection
along the ITCZ which is described more above. Seas in these 
waters remain at 6 to near 8 ft. Elsewhere, moderate or weaker 
winds and moderate seas are prevalent.

For the forecast, the weak cold front will very slowly shift E
during the next couple of days, with moderate to locally fresh
winds near it into the evening. Associated seas will briefly 
build to 9 ft behind the front later this evening into Tue before
subsiding. Continuing high pressure will support moderate to 
locally fresh easterly winds and moderate to locally rough seas 
across the trade wind zone into the middle of the week, 
supporting seas to around 8 ft. Seas will build to around 8 ft in
fresh NE swell from a Gulf of Tehuantepec gale force gap wind 
event to near 10N100W tonight through Tue night. Moderate to 
fresh winds will accompany those seas. Seas may build to around 8
ft in southerly swell near 03.4S by the end of the week.

$$
Lewitsky