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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