####018005670####
AXPZ20 KNHC 272054

TWDEP 



Tropical Weather Discussion

NWS National Hurricane Center Miami FL

2205 UTC Sun Apr 27 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 1800 UTC surface analysis and satellite imagery through

1920 UTC.



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



The monsoon trough extends from 10N75W to 06.57N81W to 08N88W to 

07.5N112W to 06N118W. The ITCZ continues from 06N119W to beyond 

06N140W. Scattered moderate isolated strong convection is noted 

from 03N to 09N east of 88W, from 02.5N to 07N between 88W and

107W, and from 03.5N to 07N west of 126W. Scattered moderate to 

strong convection is noted from 05.5N to 11N between 100W and 

121W.



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



Midday satellite scatterometer data showed moderate to locally 

fresh N-NW winds across the waters off of Baja California Norte,  

and mainly fresh N-NW winds across the Baja waters from Punta 

Eugenia southward to near 20N, becoming moderate northerly winds 

from 20N southward through the Revillagigedo Islands. Seas across

these waters are 5 to 7 ft in merging NW and S swell, except to 

8 ft across the Baja Sur waters where winds are strongest. Light 

to gentle winds are elsewhere over the open waters off Mexico to

Puerto Angel, while fresh N to NE gap winds continue to spill 

out of the central Gulf of Tehuantepec. Seas are 5 to 7 ft in S 

swell across these waters except to 8 ft offshore of Tehuantepec.

Moderate to locally fresh N to NE winds are occurring across the

north and central Gulf of California, behind a weak and dying 

cold front moving through the central Gulf. Light to gentle  

winds are elsewhere across the southern portions of the Gulf. 

Seas are 2 to 4 ft across north and central portions of the Gulf

and generally 3 to 5 ft in S swell across southern portions.



For the forecast, high pressure will build modestly into the 

Baja waters this afternoon through Mon, behind the dissipating 

front across NW Mexico. This will support moderate to fresh NW 

winds across the Baja waters through early Tue, with isolated 

areas of strong winds near the coast during the late afternoon 

and evening hours. 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. Looking

ahead, a new cold front with fresh to strong winds are expected 

to move into the Baja waters late next weekend.



...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, 

AND WITHIN 750 NM OF ECUADOR...



Midday satellite scatterometer data showed moderate or stronger

easterly gap winds across the area waters from the Gulf of

Papagayo to the Gulf of Fonseca, and extending offshore to 90W. 

Fresh easterly winds prevail across the Papagayo region to

central Nicaragua. Moderate NW to N winds prevail across the 

Gulf of Panama to 05N. Gentle to moderate S to SE winds are 

occurring between the Galapagos Islands and the monsoon trough,

except for light SW to W winds offshore of Ecuador and southern

Colombia. Morning satellite altimeter data showed S-SW swell

continuing to dominate the regional waters, and likely having 

reached its peak. Seas are presently 6-8 ft across the area 

waters, and 7-9 ft from the Galapagos Islands eastward and 

northeastward to Ecuador and Colombia. Scattered showers and 

moderate thunderstorms are seen across the waters S of 10N and E 

of 92W this afternoon, most numerous within 90 nm of Costa Rica.



For the forecast, high pressure will slowly strengthen north of

the region through the middle of the coming week, leading to 

moderate to fresh easterly gap winds across the Papagayo region 

pulsing each night and morning, briefly shifting SE each 

evening. 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 is presently

peaking across the regional waters today, and will subside

tonight through Mon.



...REMAINDER OF THE AREA....



A broad ridge dominates the regional Pacific waters N of 10N 

and W of 110W, centered on a 1029 mb high near 37N136W. The 

pressure gradient between this ridge and lower pressure in the 

vicinity of the ITCZ is supporting moderate to fresh NE trade 

winds S of 21N to near the ITCZ and W of 120W. Seas over these 

waters are in the 6-9 ft range in merging S and N swell. Moderate

anticyclonic winds associated with the high pressure dominate 

the waters there N of 21N, with seas of 5 to 7 ft. Moderate to 

fresh N to NE winds dominates most of the area E of 120W 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 ensues through Fri. Cross equatorial S swell propagating 

across the area waters will gradually subside tonight through Mon

night. 



$$

Stripling