085 
AXPZ20 KNHC 040325
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Fri Apr 4 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
0315 UTC.

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

A surface trough extends from 10N85W westward to 06N110W. The 
ITCZ continues from 06N110W to 06S140W. Widely scattered moderate
convection is occurring south of 05N and east of 98W. 

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

A trough extends along the west coast of Mexico, and a 1023 mb 
high is centered near 29N136W. The pressure gradient between 
these features is supporting moderate to locally fresh NW winds 
offshore of the Baja California Peninsula, with locally strong 
winds occurring near Cabo San Lucas. NW swell is leading to seas 
of 8 to 9 ft in this region. Elsewhere, localized fresh to strong
gap winds are noted in the central Gulf of California. 
Otherwise, gentle to moderate winds and slight to moderate seas 
prevail offshore of southern Mexico. 

For the forecast, rough seas north of Cabo San Lazaro will 
slowly subside through Fri morning. Moderate to fresh NW winds 
are expected offshore of Baja California through this weekend as 
ridging prevails over the region, and pulsing strong winds and 
rough seas will be possible near Cabo San Lucas. Elsewhere, winds
will strengthen to fresh to strong speeds in the southern and 
central Gulf of California Sat into early next week, as the 
pressure gradient strengthens between high pressure to the west 
and troughing over western Mexico. Looking ahead, strong to near-
gale force winds will develop in the Gulf of Tehuantepec Sun 
night, with gale conditions and very rough seas possible early 
next week. Elsewhere, rough seas promoted by a long-period NW 
swell will progress southeastward through the Baja California 
waters early next week. 

Climatologically, the first gale-force event of the season occurs
in mid-October, with the final gale-force event occurring in late
March or early April. Occasionally, gale-force events may occur 
as early as September, and as late as May. 

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

Moderate to fresh E winds are pulsing in the Gulf of Papagayo,
with localized moderate to fresh N winds in the Gulf of Panama.
Otherwise, gentle to locally moderate winds and moderate seas 
prevail over the remainder of the offshore waters. 

For the forecast, fresh to strong E winds will pulse in the Gulf
of Papagayo through Sun morning. Near-gale force winds will be 
possible in this region Fri night into early Sat. Moderate to 
fresh E winds are expected to extend well beyond the Papagayo 
region, impacting areas well offshore of Guatemala and El 
Salvador through Sat. Elsewhere, a mix of SW and NW swells will 
maintain moderate seas between Ecuador and the Galapagos Islands
through Fri. Otherwise, gentle to locally moderate winds are 
expected across the remainder of the waters into early next week.

...REMAINDER OF THE AREA....

A 1023 mb high is centered near 29N136W, and ridging extends 
through the eastern Pacific waters. Gentle winds and seas of 3 to
5 ft prevail near the center of the high, as observed from SOFAR
wave height data. Farther south, the pressure gradient between 
the high pressure and the ITCZ is leading to moderate to fresh E 
to NE winds, north of the ITCZ to 20N and west of 115W. Seas in 
this region range from 7 to 9 ft in mixed NW and NE swell. 
Otherwise, gentle to moderate winds and seas of 4 to 7 ft prevail
over the remainder of the waters. 

For the forecast, moderate to fresh trade winds and rough seas 
will occur into Sun, generally between 05N and 25N west of 115W, 
as high pressure prevails in the eastern Pacific. A cold front 
drifting eastward over the northern waters this weekend will 
weaken the influence of the ridge, leading to moderate trade 
winds in the aforementioned region. A long-period NW swell 
associated with the cold front is slated to progress 
southeastward across the waters Sun into next week, producing 
rough seas in excess of 8 ft north of 25N and west of 135W by Sat
night, and north of 15N and west of 130W through Sun morning. 
Very rough seas in excess of 12 ft will be possible north of 20N 
and west of 130W on Sun. Rough seas will continue to progress 
southeastward through early next week. 

$$
ADAMS