542 
AXPZ20 KNHC 280139
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Mon Apr 28 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
0130 UTC.

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

The monsoon trough extends from 09N84W to 06N115W. The ITCZ 
continues from 06N115W to beyond 05N140W. Scattered moderate 
isolated strong convection is noted from 03N to 09N between 86W
and 140W.

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

Moderate to fresh winds prevail west of the Baja California
peninsula, extending southward to near the Revillagigedo Islands.
Light to gentle winds prevail elsewhere over the open waters off
Mexico. Gentle to moderate winds are over the Gulf of California.
Seas are in the 7-8 ft range over the open waters off Mexico in a
mix of N and S to SW swell. Over the Gulf of California, seas are
3 ft or less. 

For the forecast, high pressure will build into the Baja waters 
through Mon night. This will support moderate to fresh NW winds 
across the Baja waters through early Tue. N to NE gap winds 
across the Gulf of Tehuantepec will pulse fresh to strong tonight
through the Mon morning, then weaken and become variable though 
Thu. 

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

Gentle to moderate gap winds prevail in the Gulfs of Papagayo 
and Panama. Light to gentle winds are elsewhere over the area 
waters. Seas are in the 6-8 ft in S to SW swell. 

For the forecast, moderate to fresh easterly gap winds will 
pulse across the Papagayo region each night and morning. Moderate
northerly winds across the Gulf of Panama will pulse to fresh 
tonight through Mon morning, then diminish slightly next week. 
Cross equatorial S-SW swell across the regional waters will 
subside through Mon. 

...REMAINDER OF THE AREA....

A broad ridge dominates the regional Pacific waters N of 10N 
and W of 110W. The pressure gradient between this ridge and 
lower pressure in the vicinity of the ITCZ is supporting moderate
to fresh NE trade winds N of the ITCZ to 22N and W of 118W. Seas
over these waters are in the 6-9 ft range in merging S and N 
swell. Moderate anticyclonic winds dominate the waters N of 22N,
with seas of 5 to 7 ft. Gentle to moderate N to NE winds 
dominates most of the area E of 118W and north of the ITCZ. Seas
are 6 to 8 ft in S swell. S of the ITCZ/monsoon trough, gentle 
winds and seas of 6-8 ft in S-SW swell prevail. 

For the forecast, the broad high pressure ridge currently 
dominating the region W of 110W will remain in place through 
early Wed, then begin to weaken and shift SE, ahead of an 
approaching frontal system. Little change in winds and wave 
heights are expected N of the ITCZ through early Wed, before a 
decreasing trend from the middle to end of the week. Cross 
equatorial S swell propagating across the area waters will 
gradually subside through Mon night.

$$
AL