788 
AXPZ20 KNHC 230355
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Wed Apr 23 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
0330 UTC.

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

The monsoon trough extends from the coast of Panama near 08N78W 
and continues to 09N88W to 04N103W. The ITCZ extends from there 
to 07N122W to beyond 03N140W. Scattered moderate and isolated 
strong convection is noted from 00N-09N between 80W-90W. 
Scattered moderate convection is occurring from 02N-12N between
113W and 140W.

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

A weak ridge of high pressure extends across the Baja California
offshore waters, supporting moderate or weaker winds across all 
of the waters, except for locally fresh NW winds between Punta
Eugenia and Cabo San Lazaro. Locally moderate to fresh SW winds
are also ongoing over the northern Gulf of California N of 28N
due to the southern extension of a surface trough. Seas are 5-6 
ft in mixed NW and SW swell over the Pacific waters, and 1-2 ft 
along the Gulf of California.

For the forecast, the weak ridge of high pressure will dominate 
the Mexican offshore waters for the next few days, continuing the
quiescent wind and wave conditions. Looking ahead, a stronger 
pressure gradient will increase NW winds along the Baja 
California peninsula to fresh to locally strong beginning on Fri 
night through the weekend.

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

Scattered showers and isolated thunderstorms continue to affect 
the offshore waters of Panama, Costa Rica and Colombia. A strong
ridge over the W Atlantic and NW Caribbean is forcing fresh to
strong NE to E winds over the Gulf of Papagayo region, reaching 
downwind to 88W per recent scatterometer data. The scatterometer
also show fresh to strong southerly wind S of the monsoon trough
over the Costa Rica offshore waters. Elsewhere, winds are 
moderate or weaker. Seas are 4-7 ft in SW swell.

For the forecast, NE to E gap winds are expected to pulse to fresh
to strong over the Gulf of Papagayo region through Thu, then to 
moderate to fresh at night through the weekend. Otherwise, 
moderate or weaker winds will prevail over the Central American 
and equatorial Pacific offshore zones through Sun night. Looking
ahead, moderate S swell should impact the equatorial zones on 
Sat and Sun.  

...REMAINDER OF THE AREA....

A 1032 mb high pressure is located at 41N143W with a ridge 
extending southeastward across the subtropical waters and into
the tropics to about 15N. A modest pressure gradient between the
ridge and lower pressure over the ITCZ is forcing moderate to 
fresh NE trades from 05N-17N west of 110W with 7-9 ft seas in 
mixed swell. Elsewhere, winds are gentle or weaker with 5-7 ft in
mixed N and SW swell.

For the forecast, little change in winds is expected through the
end of the week. Looking ahead, a weak cold front should reach 
our N border on Fri night and Sat, but only accompanied by 
moderate winds. After the passage of the cold front, the ridge 
will shift southeastward, enhancing the area of fresh trades Sat
and Sun. A moderate S swell is anticipated to reach our S border
east of 120W beginning on Thu night and continuing until Sat 
night.

$$
Ramos