000
AXPZ20 KNHC 220917
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Wed Apr 22 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
0910 UTC.

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

A trough axis extends from near 08N78W to 05N100W to 04N113W. 
The ITCZ stretches from 04N113W to 01N130W and beyond 02N140W. 
Scattered moderate convection is observed from 03S to 07N 
E of 100W, and from 00N to 11N between 111W and 131W.

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

A weak cold front continues to move across Baja California Norte
this morning while a broad surface ridge prevails across the
remainder Baja offshores. Recent scatterometer data confirm
moderate to fresh NW winds ahead of the front from Sebastian
Vizcaino Bay to Punta Abreojos where altimeter data show seas in
the 4 to 6 ft range. In the northern Gulf of California, 
moderate to fresh NE winds are behind of the front. In the Gulf 
of Tehuantepec, winds are moderate to fresh and seas to 5-6 ft. 
Elsewhere, winds are light to gentle and seas 4-6 ft in S swell,
except to 3 ft in the Gulf of California.

For the forecast, high pressure in the Gulf of America will 
continue to weaken today as it shifts northeastward, leading to 
a significant decrease in gap winds across the Gulf of 
Tehuantepec. The weak cold front will continue to move 
southeastward and dissipate later today. New high pressure 
behind this front will build across the Baja waters today and 
Thu, and act to increase winds modestly through early Fri before 
weakening into Fri night. NW swell generated behind the front 
will continue to move across the Baja California Norte waters and 
spread southeastward to the Revillagigedo Islands through Thu. 
Seas are expected to peak to around 8 ft across north and central
portions of the Baja waters with this swell. Elsewhere, mostly 
light to gentle west to northwest winds are expected through the 
weekend.

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

Modest high pressure north of the western Caribbean Sea is
forcing fresh NE to E gap winds and moderate seas to 6 ft across
the Papagayo region, extending downstream to 88W. Elsewhere, 
light to gentle variable winds prevail along with moderate seas
in SW swell.

For the forecast, gap winds will pulse moderate to fresh speeds 
across the Papagayo region through this morning, then become 
light variable through the weekend. Otherwise, rather tranquil 
conditions are expected to continue over the Central American and
the equatorial waters through the end of the week. The next 
significant SW swell is forecast to approach the Galapagos SW 
waters Sat night. 

...REMAINDER OF THE AREA...

A weakening cold front continues to slide southeastward across 
the NE waters, extending from 30N116W to 25N123W, then becomes 
dissipating stationary, stretching to 21N139W. No significant 
convection is seen near this boundary. Large NW swell follows the
front, supporting seas of 8-10 ft per recent altimeter data. 
High pressure well NW of the front extends weakly into the area 
and is producing light to gentle anticyclonic winds behind the 
front N of 20N. Weak high pressure SE of the front dominates the 
remainder of the basin, supporting moderate to locally fresh 
easterly trade winds from 07N to 20N between 120W and 140W as
shown by recent scatterometer data. Moderate seas to 7 ft in S 
swell, prevail between the front and the ITCZ. Elsewhere, 
moderate or lighter winds and moderate seas are prevalent.

For the forecast, the aforementioned frontal boundary will move 
east-southeastward, and dissipate as it moves into the central 
Baja waters later today. The NW swell behind the front will 
spread southeastward over the next few days, reaching the trade 
wind zone by this evening, and leading to rough seas around 8 ft
there tonight through Thu night. Little overall changes are 
expected with winds and seas elsewhere through Sun.

$$
Ramos