000
AXPZ20 KNHC 210324
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Tue Apr 21 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
0305 UTC.
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A trough axis extends from the coast of Colombia near 05N77W to
05N103W. The ITCZ stretches from 05N103W to 03N125W and beyond
04N140W. Scattered moderate convection is found south of 10N and
between 114W and 130W. Similar convection is noted from 02N to
08N and west of 135W.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
The tight pressure gradient between a 1025 mb high pressure
system over the southern United States and lower pressures in
the deep tropics support fresh to near gale-force northerly winds
and rough seas to 10 ft in the Gulf of Tehuantepec. The fresh
winds and rough seas extends downstream to 12N99W.
The remainder of the Mexican offshore waters are under a weaker
pressure gradient. Gentle to moderate NW winds and seas of 3-5 ft
are evident in the offshore waters of Baja California, except for
locally fresh winds in the nearshore waters south of Punta
Eugenia. Elsewhere, moderate or weaker winds and slight to
moderate seas prevail.
For the forecast, high pressure will support fresh to strong N winds
and rough seas in the Gulf of Tehuantepec through Tue afternoon.
Elsewhere, a set of northwest swell will move through the waters
west of Baja California Norte Tue night into Wed, but will be
subsiding as it does. Seas are expected to peak to around 8 ft with
this swell. Fresh to locally strong northwest winds are forecast
over the Pacific waters of Baja California beginning Wed night.
Northwest winds will pulse to moderate to fresh speeds at night
offshore southwestern Mexico Tue through Fri. Elsewhere, mostly
light to gentle west to northwest winds are expected through the end
of the week.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND
WITHIN 750 NM OF ECUADOR...
High pressure north of the Caribbean supports fresh to
occasionally strong easterly trade winds and moderate seas across
the Gulf of Papagayo region, extending downstream to 90W. Farther
east, moderate to locally fresh northerly winds and seas of 3-5
ft are occurring in the Gulf of Panama. Elsewhere, light to
gentle variable winds, along with seas 4 to 7 ft due to a long-period
south to southwest swell prevail.
For the forecast, winds may pulse fresh to occasionally strong speeds
in the Gulf of Papagayo region late tonight and Tue morning and
again late Tue night into Wed morning. Similarly, winds will
pulse to locally fresh in the Gulf of Panama at night tonight and
Tue night. Otherwise, rather tranquil conditions are expected to
continue over the Central American and the equatorial waters
through the end of the week.
...REMAINDER OF THE AREA...
A weakening cold front continues to move across the far northwest
waters, extending from 30N125W to 26N131W, then a stationary
front stretches to beyond 23N140W. No significant convection is
seen near this boundary. A set of long-period northwest to north
swell follows the front supporting seas of 8-13 ft with the
highest seas near 30N137W. Weak high pressure dominates the
remainder of the area, sustaining moderate to locally fresh
easterly trade winds and moderate seas north of the ITCZ to 20N
and west of 115W. Elsewhere, moderate or lighter winds and
moderate seas are prevalent.
For the forecast, the aforementioned frontal boundary will move
east-southeastward, weakening Tue and dissipating Wed. The rough
to very rough seas behind the front will spread southeastward
over the next few days, weakening in the process. Rough seas will
reach the western trade waters Wed. Little overall changes are
expected with winds and seas elsewhere through Thu.
$$
Delgado
