915
AXPZ20 KNHC 220405
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 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 0000 UTC surface analysis and satellite imagery through
0340 UTC.
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A trough axis extends from near 08N78W to 08N83W to 05N90W to
05N100W. The ITCZ stretches from 05N101W to 02N123W and beyond
05N140W. Scattered moderate convection is observed from 00N to
07N between 84W and 94W, and from 02S to 08N between 110W and
132W.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
A weak cold front started to move across the Baja California
Norte tonight while a broad surface ridge prevails. The broad
ridge is yielding moderate to locally fresh NW to N winds across
the Baja waters. In the northern Gulf of California, moderate to
fresh SW winds are ahead of the front. Seas across the Baja
offshores are 4-7 ft in S swell south of Punta Eugenia and NW
swell N of 27N. In the Gulf of Tehuantepec, winds are moderate to
fresh and seas to 6 ft. Elsewhere, winds are moderate or weaker
and seas 4-7 ft in S swell.
For the forecast, high pressure extending across the Gulf of
America will begin to weaken tonight through Wed as the high
shifts northeastward, leading to a significant decrease in gap
winds across the Gulf of Tehuantepec tonight through Wed.
Elsewhere, a weak cold front moving across Baja California Norte
will move southeastward through tonight then dissipate Wed
morning. New high pressure behind this front will build across
the Baja waters Wed and Thu, and act to increase winds modestly
through early Fri before weakening into Fri night. New NW swell
generated behind the front will move into the Baja California
Norte waters tonight and spread southeastward to the
Revillagigedo Islands through Wed night. 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 end of the week and
into the upcoming 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 across the
Papagayo region, extending downstream to 87W. Seas there are 5
to 6 ft. Farther east, moderate N to NE winds are occurring in
the Gulf of Panama. Seas in these waters are 5 to 6 ft in SW
swell. Elsewhere, light to gentle variable winds prevail.
For the forecast, gap winds will pulse moderate to fresh speeds
across the Papagayo region tonight into Wed morning, then become
light variable through the weekend. Similarly, winds will pulse
to moderate in the Gulf of Panama tonight into Wed morning before
also becoming light to gentle the rest of the week. 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
area waters over the upcoming weekend.
...REMAINDER OF THE AREA...
A weakening cold front continues to slide southeastward across
the northern waters, extending from 30N118W to 25N124W, then
becomes stationary and stretches to 21N140W. No significant
convection is seen near this boundary. Large NW swell follows
the front, supporting seas of 8-9 ft. 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 between
110W and 140W. 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, further weakening tonight and dissipating as
it moves into the central Baja waters on Wed. The NW swell
behind the front will spread southeastward over the next few
days, reaching the trade wind zone Wed evening, and leading to
rough seas around 8 ft there Wed night through Thu night. Little
overall changes are expected with winds and seas elsewhere
through Thu.
$$
Ramos
