803
AXPZ20 KNHC 200338
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Sun Apr 20 2025

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
0330 UTC.

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

The monsoon trough enters the Pacific Ocean near 07N78W and
extends to 08N84W to 05N96W. The ITCZ continues from 05N96W to
beyond 03N140W. A second ITCZ has been analyzed from 01S119W to
06S140W. Scattered moderate to strong convection is occurring
from 01S to 10N east of 90W. Scattered moderate to isolated
strong convection is noted from 04N to 10N between 90W and 125W.

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

Fresh to locally strong NW winds are occurring offshore of
southwestern Mexico from Jalisco to Michoacan as low pressure
resides over central Mexico. Elsewhere, a trough has been
analyzed over the Gulf of California, while ridging dominates the
rest of the waters. The pressure gradient between the
aforementioned features is supporting moderate to locally fresh
NW winds just offshore of the Baja peninsula south of Punta
Eugenia, as well as through the central and southern Gulf of
California. Moderate seas of 4 to 7 ft are noted through much of
the regional waters, with slight seas of 1 to 4 ft in the Gulf of
California.

For the forecast, fresh to locally strong NW winds will pulse
offshore of southwestern Mexico near Jalisco each night and
morning through early next week. Farther north, moderate to
locally fresh NW winds are expected to pulse in the Gulf of
California and in the bays offshore of Baja California through
Sun. Otherwise, prevailing high pressure over the eastern Pacific
will support gentle to moderate NW winds and slight to moderate
seas over the remainder of the waters through the middle of next
week.

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

Fresh to locally strong E winds and seas to 7 ft prevail in the
Gulf of Papagayo as low pressure resides over northwestern
Colombia. Moderate E to NE winds are occurring well offshore of
El Salvador. Elsewhere, moderate to locally fresh N winds are
pulsing in the Gulf of Panama. Otherwise, south of the monsoon
trough, gentle to locally moderate S winds and moderate seas in S
swell prevail. Scattered moderate to strong convection is
pushing offshore of western Colombia, and strong winds and rough
seas are possible near showers and thunderstorms.

For the forecast, fresh to strong E winds and locally rough seas
are expected to pulse in the Gulf of Papagayo through Tue
morning, and occasional moderate to fresh winds are expected in
the region thereafter. Moderate to locally fresh winds will
extend through the far offshore waters of El Salvador and
Guatemala into early next week. Elsewhere, winds will pulse to
moderate to fresh speeds in the Gulf of Panama through Sun
morning, decreasing to light to gentle speeds thereafter. Looking
ahead, a long-period Southern Hemisphere swell will support
rough seas in the waters offshore of Ecuador by late next week.

...REMAINDER OF THE AREA....

Ridging extends through much of the eastern Pacific waters,
extending southward from a 1041 mb high centered near 44N147W.
Moderate to fresh NE winds and seas of 6 to 8 ft are occurring
from 05N to 20W west of 110W. Farther north, gentle to locally
moderate N to NE winds are noted, with seas of 5 to 7 ft, as
observed by SOFAR buoy data. South of the ITCZ and monsoon
trough, gentle to moderate S to E winds and seas of 5 to 7 ft in
S swell prevail.

For the forecast, moderate to fresh winds will occur through the
middle of next week from 05N to 20N west of 115W, as ridging
continues to dominate the eastern Pacific. Short-period, wind-
generated E swell will promote rough seas in this region. Farther
north, gentle to moderate N to E winds and moderate seas will
prevail. N swell to 8 ft will approach the northern waters Sun
into early next week before retreating. Looking ahead, a long-
period Southern Hemisphere swell will promote rough seas south of
05N late next week.

$$
ADAMS