624 
AXPZ20 KNHC 190918
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Sat Apr 19 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 0600 UTC surface analysis and satellite imagery through
0900 UTC.

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

A surface trough extends from a 1008 mb low in northwestern 
Colombia near 08N75W to 06N77W to 09N84W to 05N97W. The ITCZ 
continues from 05N97W to beyond 03N140W. A second ITCZ extends 
from 01S115W to 07S140W. Scattered moderate to strong convection 
is occurring south of 10N and east of 85W. Scattered moderate 
convection is noted from 03N to 12N between 94W and 111W. 

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

A strong 1042 mb high centered well north of the area near 
44N151W extends ridging through the Mexico offshore waters, while
a 1013 mb low centered over Southern California extends a trough
southward through the Gulf of California into southern Baja 
California. Recent scatterometer satellite data depict localized 
fresh W winds and seas to 4 ft in the northern Gulf, north of 
28N. Elsewhere, scatterometer data show locally fresh NW winds 
pulsing south of Punta Eugenia just offshore of Baja. Otherwise, 
widespread gentle to moderate NW winds and moderate seas prevail 
over the waters offshore of Baja and southern Mexico, as well as 
through the southern Gulf of California. 

For the forecast, localized fresh W winds will pulse in the 
northern Gulf of California early this morning. Elsewhere, 
pulsing fresh to strong NW winds are expected offshore of 
southwestern Mexico near Jalisco through Guerrero into early next
week, while occasional fresh NW winds will occur through the 
Sebastian Vizcaino Bay and Magdalena Bay and surrounding areas 
this weekend. Otherwise, gentle to moderate NW winds and slight 
to moderate seas will prevail 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...

Strong to locally near-gale force winds are pulsing in the Gulf 
of Papagayo as a strong pressure gradient prevails between low 
pressure over northwestern Colombia and high pressure in the 
western Atlantic. In the Gulf of Panama, fresh N winds are noted.
Scattered moderate to strong convection is occurring offshore of
western Colombia and Ecuador, and strong winds and locally rough
seas are likely near convection. The rest of the regional waters
are experiencing moderate or weaker winds and seas of 3 to 6 ft 
in S to SW swell, as observed on recent altimeter satellite data.

For the forecast, strong to near-gale force E winds will pulse 
in the Gulf of Papagayo this morning, and locally rough seas will
accompany these winds. Fresh to strong E winds are then expected
each night and morning in this region through the middle of next
week. Moderate to fresh winds will likely extend through the 
waters well offshore of El Salvador and Guatemala this weekend. 
Elsewhere, fresh to strong N winds will occur this morning in the
Gulf of Panama, with winds occasionally pulsing to moderate 
speeds thereafter. Looking ahead, a new long-period S to SW swell
will propagate through the regional waters early next week.

...REMAINDER OF THE AREA....

A strong 1042 mb high centered well north of the area near 
44N151W extends ridging through much of the eastern Pacific 
waters. Recent scatterometer satellite data show moderate N to NE
winds and seas of 5 to 8 ft over the waters north of the ITCZ, 
with fresh NE winds between 08N and 20N, west of 115W, and 
localized fresh winds occurring between 20N and 30W, west of 
130W. South of the ITCZ, gentle to locally moderate SE winds and 
seas of 4 to 7 ft prevail. 

For the forecast, moderate N to E winds will occur north of the 
ITCZ through the middle of next week as ridging prevails over the
eastern Pacific waters. Pulsing fresh NE winds are expected 
through Sun between 05N and 20N, west of 115W. A short-period, 
wind-generated E swell will promote rough seas in this region 
through early next week. Looking ahead, a long-period Southern 
Hemisphere swell will progress through the southern waters late 
next week.

$$
ADAMS