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Eastern North Pacific Tropical Weather Discussion


798 
AXPZ20 KNHC 041527
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Sun May 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 1200 UTC surface analysis and satellite imagery through
1500 UTC.

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

The monsoon trough extends from Costa Rica near 09N84W to 
11N92W to 07N125W. The ITCZ extends from 07N125W to 08N132W to 
beyond 04N140W. Numerous moderate to isolated strong convection 
is present from 02N to 04N east of 82W, scattered moderate from
07N to 12N between 85W and 88W, from 06n to 08N between 95W and
125W.

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

A cold front is moving through Baja California Norte and the 
northern Gulf of California this morning. Near-gale force SW
winds are likely over the northern Gulf of California. Seas are 
somewhat fetch limited there, but are building to at least 7 ft
so far. Strong NW winds and rough seas follow the front off Baja
California Norte. Strong winds are also funneling off Cabo San 
Lucas. Relatively benign marine conditions persist elsewhere over
Mexican offshore waters.

For the forecast, the cold front will reach the central Baja
California waters today and will be accompanied by fresh to
strong NW winds and rough seas to 16 ft north of Punta Eugenia, 
and mainly moderate to fresh winds and moderate seas elsewhere 
across the Baja offshores. Strong to near gale-force westerly gap
winds are also expected across the northern Gulf of California 
through early Mon morning when the front is forecast to 
dissipate. Fresh to strong winds and seas to 8 ft will continue 
off Cabo San Lucas through Mon. Large NW swell associated with 
the front, with combined seas in excess of 8 ft will reach the 
waters off Cabo San Lazaro Mon, and the Revillagigedo Islands by 
Tue. The highest seas may reach 17 ft off Guadalupe Island. Light
to gentle breezes, except moderate to fresh NW winds off Cabo 
Corrientes, will persist elsewhere off southern Mexico through 
Thu night. 

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

Weather remains unsettled across the waters between 80W and 90W 
as showers and isolated thunderstorms associated with the monsoon
trough also impact Costa Rica and Nicaragua, and farther south
off Colombia. This shower activity is supporting moderate SW to 
W winds across these offshore waters while a weak pressure 
gradient elsewhere is resulting in light to gentle winds. Seas of
5-6 ft primarily in SW swell are ongoing across the offshore 
waters between Ecuador and The Galapagos as well as the Central 
America offshore waters.

For the forecast, no important changes are anticipated through
the forecast period as gentle to moderate breezes will persist 
across the waters off Central America, Colombia and Ecuador, 
with primarily moderate SW swell.

...REMAINDER OF THE AREA....

A cold front extends from the northern Gulf of California to off
Punta Eugenia then is dissipating to 27N125W. Fresh to strong N 
to NW winds follow the front, which is also impacting the 
subtropical waters north of 25N with rough seas in the 8 to 12 
ft range. Farther south, the extension of the subtropical ridge 
to near 15N, is supporting a broad area of moderate to fresh 
trade winds and 7 to 8 ft seas in the deep tropics west of 125W.
Moderate or weaker winds and moderate seas are noted elsewhere. 

For the forecast, the aforementioned cold front will reach from 
central Baja California to 23N120W by this evening. Strong high 
pressure building behind the front will promote fresh to locally 
strong N to NE winds and building seas to 16 ft behind the front 
through the remainder weekend, with strongest winds and highest 
seas occurring east of 130W. Winds and seas will diminish late 
Mon into Tue. 

$$
Christensen