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Eastern North Pacific Tropical Weather Discussion


630 
AXPZ20 KNHC 222020
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Tue Apr 22 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 1800 UTC surface analysis and satellite imagery through
2000 UTC.

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

The monsoon trough extends from the coast of Panama near 09N79W
and continues to 05N103W. The ITCZ extends from there to beyond 
03N140W. Scattered moderate and isolated strong convection is 
noted from 05N-10N between 121W-133W. Scattered moderate
convection is occurring from 03N-08N east of 88W.

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

A weak ridge of high pressure is present from 25N125W
southeastward to 13N98W. Winds are moderate or weaker across all
of the waters. Seas are 4-6 ft in mixed NW and SW swell over the
Pacific waters, and 1-2 ft over 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 Caribbean is forcing fresh NE to E
winds over the Gulf of Papagayo region, reaching downwind to 
88W. Elsewhere, winds are moderate or weaker. Seas are 4-7 ft in
SW swell.

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

...REMAINDER OF THE AREA....

A 1035 mb high pressure is located at 41N143W with a ridge 
extending southeastward from 25N125W to 13N98W. A modest 
pressure gradient between the ridge and lower pressure over the 
ITCZ is forcing moderate to fresh NE trades from 06N-16N west of
118W with seas to 8 ft 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 on
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.

$$
Landsea