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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 031542
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Thu Apr 3 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
1500 UTC.

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

A surface trough extends westward from a 1010 mb low over
northern Colombia to 07N95W to 04N113W. The ITCZ continues from
04N113W to 02S130W to beyond 02S140W. Scattered moderate to
isolated strong convection is seen from 00N to 03N east of 87W, 
and from 02N to 06N E of 80W to the coast of Colombia, from 00N
to 02N between 80W and 84W, from 02N to 05N between 92W and 95W,
and from 02n to 05n between 100W and 105W.

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

A broad surface ridge extends southeastward from 1028 mb high 
pressure centered near 33N137W to near the Revillagigedo Islands.
This pattern is supporting fresh to locally strong NW to N winds
west of Baja California. Seas of 8 to 10 ft in NW swell dominate
the waters N of Cabo San Lazaro. Moderate to locally fresh NW to
N winds and seas of 5 to 7 ft in moderate NW swell are present 
from Cabo San Lucas to near the Revillagigedo Islands. In the 
Gulf of California, gentle to moderate winds and seas of 2 to 4 
ft are noted. Light and variable winds and moderate seas primarily
in SW swell prevail across the remainder of the Mexican offshore
waters. 

For the forecast, moderate to fresh NW winds will persist off 
Baja California through Sun, although strong winds may briefly 
pulse off Cabo San Lucas during overnight hours. In the central 
Gulf of California, moderate to fresh with locally strong winds 
are anticipated tonight. A similar scenario is also forecast for 
the central and southern Gulf of California Sat night and Sun 
night. Large NW swell will maintain rough seas west of Baja 
California until early Fri, then subside to mainly moderate, with
another set arriving by early next week. Looking ahead, a surge 
of near-gale force northerly gap winds may develop in the Gulf 
of Tehuantepec late Sun night, which could increase further to 
minimal gale-force early next week. 

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

Fresh to locally strong easterly winds and 5 to 7 ft seas are 
present in the Gulf of Papagayo and downwind to about 88W, while
moderate northerly winds and seas at 3 to 5 ft are evident 
elsewhere off Central America. Farther south, light to gentle 
winds along with 4 to 6 ft seas in a mixed of SW and NW swells 
prevail off Colombia and Ecuador. 

For the forecast, fresh to locally strong winds will pulse at 
times in the Gulf of Papagayo through Fri night, mainly during 
nighttime and early morning hours. A mix of SW and NW swells will
keep moderate seas between Ecuador and the Galapagos Islands  
through Fri.

...REMAINDER OF THE AREA....

A broad surface ridge extends southeastward from 1028 mb high 
pressure centered near 33N137W to near the Revillagigedo Islands. 
This pattern is supporting fresh trade winds and 6 to 8 ft seas 
in a mix of swell south of 20N and west of 125W. Moderate NE 
winds persist elsewhere west of 110W, with 5 to 7 ft seas, except
for 8 to 10 ft seas in NW swell north of 20N and east of 120W. 
Gentle NE to E breezes and 5 to 7 ft seas in mixed NW and SW 
swell are noted east of 110W. 

For the forecast, the ridge will be nearly stationary while 
weakening some through this weekend. This should allow winds to 
diminish slightly across the trade wind belt. The NW swell will 
also steadily decay which allow seas to subside slightly. A new 
set of large NW swell will reach 30N140W by Sat afternoon, with 
seas up to around 14 ft near 30N140W by early Sun. Seas of 8 ft 
or greater will cover the waters west of a line from Punta 
Eugenia to 05N127W by Mon evening. Little change is expected 
elsewhere through Sun over the open Pacific waters.

$$
GR