000
AXPZ20 KNHC 291014
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Mon Jun 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 0600 UTC surface analysis and satellite imagery through
0900 UTC.

...TROPICAL WAVES...

A tropical wave is near 100W from near Acapulco, Mexico 
southward, and moving westward around 15 kt. Widely scattered 
moderate convection is seen from 05N to 13N between 91W and 
103W.

Another tropical wave is near 124W from 19N southward, and moving
westward at 10 to 15 kt. Numerous moderate to scattered strong 
convection is noted from 04N to 13N between 120W and 132W.

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

A monsoon trough curves northwestward from near the Panama-
Colombia border to 09N85W to 08N89W. An ITCZ continues west- 
northwestward from 08N89W to 06N99W, then from 07N102W to 
11N123W, and from 09N126W to beyond 04N140W. Scattered moderate 
to isolated strong convection is flaring up south of the monsoon 
trough from 02N to 07N between 77W and 91W, and near the ITCZ 
from 05N to 16N between 106W and 120W. Scattered to numerous 
moderate convection is found near the rest of the ITCZ from 01S 
to 06N west of 130W.
 
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A broad surface ridge extends southeastward from northwest of the
Hawaiian Islands across 30N135W to near the Revillagigedo
Islands. This feature is supporting gentle to moderate with
locally fresh NW to N winds and seas of 5 to 7 ft just west of
Baja California. In the Gulf of California, fresh to locally 
strong SW to W winds and 3 to 5 ft seas are present in the 
northern Gulf, while gentle to moderate SE to SW winds and seas
at 1 to 3 ft prevail for the rest of the Gulf. A 1015 mb high
just south of Tampico, Mexico is enhancing moderate to fresh NE
winds across the Bay of Campeche, causing fresh to strong N gap
winds and 6 to 7 ft seas in the Gulf of Tehuantepec. Mainly
gentle winds and seas of 4 to 6 ft dominate the rest of the
central and southern Mexico offshore waters, except moderate
E winds and 5 to 7 ft seas in long-period S swell across the far
southern offshore waters of the Oaxaca and chiapas States.

For the forecast, fresh to strong N to NE gap winds and moderate
to rough seas are expected in the Gulf of Tehuantepec region 
from the nighttime to late morning hours each night and morning 
through Sat. Fresh to strong W to SW winds should pulse in the 
northern Gulf of California until before sunrise this morning, 
and again tonight through early Tue morning. Gentle to moderate 
with locally fresh NW to N winds and moderate seas will persist 
west of Baja California through the end of the week. NW swell is 
going to create rough seas at the far northwestern waters off 
Baja California Norte today through Tue evening.

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

Fresh to strong NE to E gap winds with 6 to 8 ft seas persist 
across the Gulf of Papagayo and off the southern coast of 
Nicaragua. Altimeter satellite data earlier this morning indicate
seas of 7 to 9 ft under these winds, and 6 to 8 ft farther 
downstream in the far southern offshore waters of Guatemala and 
El Salvador. Moderate to locally fresh N winds with 4 to 6 ft
seas are noted in the Gulf of Panama. Gentle winds and seas at 4
to 6 ft in mixed moderate swells prevail for the remainder
central America and Colombia offshore waters. Gentle to moderate
S winds and 5 to 7 ft seas in long-period S swell dominate waters
near the Galapagos Islands and Ecuador. Refer to the Monsoon
Trough/ITCZ section for convection in the region.

For the forecast, fresh to strong gap winds and moderate to 
rough seas will continue in the Gulf of Papagayo region through 
the weekend. NE to E swell generated by these winds are 
anticipated to create moderate to locally rough seas well 
downstream to near 90W. Farther south, long-period southerly 
swell should keep moderate to locally rough seas near the 
Galapagos Islands and off Ecuador until midweek. Sporadic heavy 
showers and strong thunderstorms will persist near the Colombia 
coast, spreading to south of Costa Rica and Panama by this 
evening.

...REMAINDER OF THE AREA...

A broad surface ridge extending southeastward from northwest of 
the Hawaiian Islands across 30N135W to near the Revillagigedo 
Islands is supporting moderate to locally fresh N to ENE winds
and 5 to 8 ft seas west of 118W and north of the ITCZ. East of
118W and north of the ITCZ, gentle to moderate with locally 
fresh E to SE winds and 6 to 8 ft seas in mixed moderate swells
are evident. Light to gentle winds and seas at 6 to 7 ft in mixed
moderate swells are noted near and south of the ITCZ to near 4N.
Moderate to locally fresh SE to S winds with 6 to 9 ft seas in
long-period S to SE swell prevail south of 4N. Refer to the
Monsoon Trough/ITCZ and Tropical Waves sections at the beginning
for convection in the region.

For the forecast, the tropical wave near 124W is forecast to 
undergo possible gradual development during the next couple of 
days, and a tropical depression could form near midweek while 
the system moves generally west-northwestward and then 
northwestward. Environmental conditions are forecast to become 
less conducive for development by late week as the system 
encounters increasing shear and cooler waters. Regardless of
development, a gradual increase of winds and seas are expected
along the northern portion of this wave this week. Outside of 
this system, little change are anticipated north of the ITCZ for
the next several days. South of the ITCZ, a gradual decrease in
both winds and seas will occur by Wed.

$$

Chan