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AXPZ20 KNHC 251542

TWDEP 



Tropical Weather Discussion

NWS National Hurricane Center Miami FL

1605 UTC Fri Apr 25 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 1200 UTC surface analysis and satellite imagery through

1430 UTC.



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



The monsoon trough extends from 10N75W to 08N104W to 06N114W. 

The ITCZ continues from 06N114W to beyond 03N140W. Scattered 

moderate to strong convection is noted from 01.5N to 08N between

78W and AND 92W, and from 03.5N to 08N between 92W and 140W.

Scattered moderate convection is noted from 01.5S to 03.5S

between 96W and 100W. 



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



Satellite scatterometer data from around midnight last night

showed moderate to locally fresh N-NW winds within 60-90 nm of

most of the coast of Baja California and to 20N, and gentle to 

moderate winds further offshore. Winds have diminished very 

slightly this morning. Seas across the Baja Norte waters are 4 to

5 ft in mixed SW and W swell, and 5 to 7 ft in mixed swell 

across the Baja Sur waters. Light to gentle winds are elsewhere 

over the open waters off Mexico from the Revillagigedo Islands to

Tehuantepec, where seas are 4 to 5 ft. Gentle to moderate

cyclonic winds are in the northern Gulf of California, with 

light to gentle winds elsewhere in the Gulf. Seas are 3 ft or 

less in the Gulf of California. 



For the forecast, Pacific high pressure centered well NW of the area

along 146W will drift slowly eastward through the weekend and

reach near 135W on Mon, then remain nearly stationary. The

pressure gradient between this ridge and low pressure across the

Gulf of California will lead to fresh NW winds pulsing offshore 

of Baja California Sur, including near Cabo San Lucas, tonight 

and Sat night. Fresh to strong SW winds will pulse in the 

northern Gulf of California nightly through this weekend. 

Widespread moderate to fresh NW winds, and rough seas, will 

develop this weekend and continue into next week offshore of Baja

California. Fresh to occasional strong N winds will pulse in the

Gulf of Tehuantepec this weekend. 



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

AND WITHIN 750 NM OF ECUADOR...



Satellite scatterometer data from around midnight last night

showed moderate to locally fresh E gap winds across the Papagayo

region extending offshore to 75 nm, and moderate N winds across

the Gulf of Panama to 07N. Light to gentle winds prevail 

elsewhere. Seas are in the 4-6 ft range in new S-SW swell, 

except 6 to 7 ft SW through SE of the Galapagos Islands.

Scattered moderate isolated strong thunderstorms are active

within 75 nm of the coast of Guatemala, and across the near and

offshore waters of western Panama and Costa Rica.



For the forecast, Atlantic high pressure extending southwestward 

across the eastern Gulf of America and NW Caribbean will persist

into early next week to maintain moderate gap wind flow across

the regional Pacific waters. Moderate to fresh E winds will 

pulse across the Papagayo region each night and morning into 

next week. In the Gulf of Panama, moderate to locally fresh winds

will pulse nightly into Sat, with generally moderate winds 

expected thereafter. New cross equatorial S-SW swell is entering

the regional waters today and will peak late Sat through Sun.



...REMAINDER OF THE AREA....



High pressure dominates the waters N of 10N, centered on a 1029

mb high near 39N145W. An associated broad ridge extends S and SE

between 105W and 155W. The pressure gradient between this ridge 

and lower pressure in the vicinity of the ITCZ is supporting 

moderate to fresh winds N of the ITCZ to near 22N W of 130

W, and to 18N between 120W and 130W. Seas over these waters are 

in the 6-9 ft range. Gentle to moderate winds, and seas of 5-6 

ft, prevail S of the high center, N of 18N and W of 130W. Gentle

winds, and seas of 5-6 ft are elsewhere over the discussion 

waters. 



For the forecast, the high center NW of the area will drift

slowly eastward through the weekend, and reach along 135W on Mon.

This is expected to yield little change in winds across the 

discussion waters. Rough seas will prevail over the area of fresh

winds in the tradewind zone over the western waters through the 

period. Cross equatorial S swell will propagate into the 

southern waters today through the weekend, raising seas to 8-9 

ft to the south of 10N between 100W and 120W through late Sat 

before seas slowly subside through Sun. Locally fresh N to NW 

winds and rough seas will develop tonight north of 27N behind a 

cold front sweeping across the northern waters, and reaching 120W

by midday Sat.



$$

Stripling