858 
AXPZ20 KNHC 291551
TWDEP 

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

...TROPICAL WAVES...

A tropical wave is near 103W-104W, south of 17N, moving westward
around 15 kt. Associated convection is about the ITCZ in this
area and described below. 

Another tropical wave is near 124W from 18N southward, moving 
westward at 10 to 15 kt. Numerous moderate to scattered strong 
convection is noted from 05N to 15N between 118W and 132W.

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

A monsoon trough extends from 10N74.5W to 06N79.5W to 08.5N88W. 
The ITCZ continues from 08.5N88W to 09N102W, then from 09N105W 
to 12N122W, and from 06N132W to beyond 05N140W. Scattered 
moderate to strong convection is noted from 02N to 06N E of 89W,
and S of 06.5N W of 130W. Scattered to locally numerous moderate
to strong convection is noted from 07N to 14.5N between 94W and 
110W, and from 04N to 16N between 107W and 118W. 
 
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A broad surface ridge extends from strong high pressure located 
N of the Hawaiian Islands, southeastward through 30N138W to just
N of the Revillagigedo Islands. This pressure pattern is 
supporting gentle to moderate NW to N winds and seas of 5 to 7 
ft in NW swell across the Baja California waters. Strong to
gale force winds farther north and offshore of California are
generating typical NW swell moving into the Baja waters, with 
seas to 8 ft across the far outer waters of Baja Norte. Inside 
the Gulf of California, fresh SW to W gap winds and 3 to 5 ft 
seas are present in the northern Gulf, while gentle to moderate 
SW to S winds and seas at 1 to 3 ft generally prevail across the 
rest of the Gulf. Light to gentle winds dominate the remaining 
waters from the Revillagigedo Islands to near Salina Cruz, with 
seas of 4 to 6 ft in primarily cross-equatorial S swell. A narrow
plume of fresh N gap winds continues across the Gulf of 
Tehuantepec, extending offshore to near 14.5N. Seas are 6 to 7 ft
across this area. 

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 gap 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 will 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 7 to 9 ft seas persist 
across the Papagayo region through central Nicaragua, and extend
well offshore to near 91W. Moderate N winds with 4 to 6 ft seas 
are noted across the Gulf of Panama extending southward to 05N. 
Gentle winds and seas at 4 to 6 ft in mixed swell prevail for 
the remainder central America and Colombia offshore waters N of
02N. Gentle to moderate S winds and 6 to 7 ft seas in cross- 
equatorial S swell dominate waters near the Galapagos Islands and
Ecuador. Thunderstorms remain active this morning from 02N to 06N
E of 89W.

For the forecast, fresh to strong gap winds and moderate to 
rough seas will continue across the Papagayo region throughout 
the week. NE to E swell generated by these winds are expected to
create moderate to locally rough seas well downstream to near 
90W. Farther south, cross-equatorial 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 from N of the Hawaiian Islands 
southeastward through 30N138W to just N of the Revillagigedo 
Islands is supporting moderate to locally fresh NE winds and 5 
to 8 ft seas to the N of the ITCZ and W of 118W. 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 swell prevail. 
Light to gentle winds and seas at 6 to 7 ft in mixed moderate 
swell are noted near and south of the ITCZ to near 04N. Moderate
to locally fresh SE to S winds with 6 to 9 ft seas in cross-
equatorial S to SE swell prevail south of 04N. Scattered to
numerous convection remains active about a tropical wave and
broad cyclonic low level circulation along 124W, as described
above.

For the forecast, gradual development of the tropical wave along
124W is possible during the next couple of days, and a tropical 
depression could form by the middle of this week while the system
moves generally northwestward and then north- northwestward. 
Environmental conditions are forecast to become less conducive by
the end of the week. Regardless of development, a gradual 
increase of winds and seas are expected along the northern 
portion of this wave this week, as a broad high pressure ridge
persists N of the area. 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.

$$
Stripling