902 
AXPZ20 KNHC 250725
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Tue Jul 25 2023

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 0600 UTC surface analysis and satellite imagery through
0640 UTC.

...TROPICAL WAVE...

The axis of a tropical wave is near 97W/98W, just W of the 
Tehuantepec region, from near the coast of S Mexico to 02N, 
moving west at around 15 kt. Nearby convection is only isolated
to widely scattered.

The axis of a tropical wave is near 112W, from 04N to 21N, 
moving west at around 15 kt. No significant convection is 
evident with this tropical wave.

The axis of a tropical wave is near 133W, from 01N to 16N, 
moving west at around 15 kt. Nearby convection is described 
below.

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

The monsoon trough extends from 10N75W to 07N79W to 09N84W to
08N111W. The ITCZ extends from 08N113W to 09N124W to 08N132W,
then resumes W of a tropical wave from 06N135W to 04N140W.
Numerous moderate scattered strong convection is evident from 
02N to 09N between 77W and 89W, and from 02N to 11N between 129W 
and 140W. Scattered moderate isolated strong convection is 
evident from 13N to 16N between 92W and 96W.

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

Scattered showers and isolated thunderstorms are over the Gulf of
Tehuantepec waters, with similar activity from near and offshore
Cabo Corrientes to near the entrance of the Gulf of California. 
Fresh to strong N winds are in the Gulf of Tehuantepec as
measured by an earlier ASCAT scatterometer pass, along with 4-6
ft seas. Mainly gentle to locally moderate winds prevail 
elsewhere across the offshore waters of Mexico, outside of 
thunderstorms. Seas are 3-4 ft in S-SW swell, except mixed with
NW swell offshore Baja California.

For the forecast, expect fresh to strong at night across the 
Gulf of Tehuantepec through remainder of the week and into the 
upcoming weekend. Gentle to moderate winds and moderate seas will
persist elsewhere, except for locally gusty winds near clusters 
of showers and thunderstorms in portions of the Gulf of 
California during overnight hours. Seas may build slightly
offshore Baja California Norte this weekend in new NW swell.

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

Numerous showers and thunderstorms are offshore Colombia and
Panama. Fresh to strong NE-E gap winds are across the Papagayo 
region along with 5-8 ft seas. Gentle to moderate winds are 
noted elsewhere, except possibly higher in thunderstorms. Seas
are mainly 3-5 ft, except in 4-6 ft S-SW swell south of 03N.

For the forecast, fresh to strong gap winds will pulse across 
the Gulf of Papagayo each night through Thu night, with moderate
to rough seas, then moderate to fresh thereafter. Winds will 
pulse to moderate to fresh in the Gulf of Panama mainly at night 
through Thu night. Gentle to moderate winds and slight to 
moderate seas will persist elsewhere, except for locally gusty 
winds near clusters of showers and thunderstorms from Colombia to
Costa Rica. 

...REMAINDER OF THE AREA...

A rather vigorous tropical wave near 133W, also described more 
above, has plentiful convection and fresh to strong winds near 
the central portion of the tropical wave. These winds combined
with S swell is supporting seas to around 8 ft. Otherwise, weak 
high pressure ridging dominates the basin N of the monsoon trough
and ITCZ. Southerly swell is also supporting combined seas to 
near 8 ft near and S of the equator between 110W and 130W. 
Elsewhere, mainly gentle to moderate winds and moderate seas 
prevail across the area.

For the forecast, the vigorous tropical wave and associated
conditions will shift W of 140W Wed night. Elsewhere, mainly 
gentle to moderate winds are forecast through the next several 
days. Moderate seas will prevail, except to around 8 ft S of the 
Equator and W of 95W through much of the remainder of the week.

$$
Lewitsky