203 
AXPZ20 KNHC 250156
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 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 0000 UTC surface analysis and satellite imagery through
0130 UTC.

...TROPICAL WAVE...

The axis of a tropical wave is near 96W just W of the Gulf of
Tehuantepec, from S Mexico to 01N, moving west at around 10 kt.
Nearby convection is described below.

The axis of a weak tropical wave is near 110W/111W, from 04N to 
21N, moving west at around 15 to 20 kt. No significant 
convection is evident with this tropical wave.

The axis of a tropical wave is near 132W, from 01N to 14N, 
moving west at around 15 to 20 kt. Nearby convection is described
below.

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

The monsoon trough extends from 11N74W to 08N96W to 10N110W.
The ITCZ extends from 09N111W to 08N131W to 04N140W. Scattered
moderate isolated strong convection is noted from 01N to 06N
between 81W and 96W, from 11N to 17N between 90W and 93W, and
from 02N to 13N between 123W and 137W. Scattered moderate from
08N to 10.5N between 96W and 108W, from 15N to 18N between 100W
and 105W, and from 03N to 11N between 116W and 121W.

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

Scattered showers and isolated thunderstorms are lingering over 
the offshore waters of Chiapas and Guerrero, with additional
activity near the coast from near Cabo Corrientes northward to
the southern Gulf of California. Fresh to strong N winds are
likely turning on in the immediate Gulf of Tehuantepec. Mainly 
gentle to locally moderate winds prevail elsewhere across the 
offshore waters of Mexico outside of thunderstorms. Seas are 3-4
ft, except to 5 ft offshore Baja California Norte.

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. 

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

Showers and thunderstorms are along and just offshore Colombia
and in the Gulf of Panama, as well as 120 nm and beyond offshore
western Panama. Fresh to strong NE-E gap winds are across the 
Papagayo region along with 5-7 ft seas. Gentle to moderate winds
are noted elsewhere, with 3-5 ft seas 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 Wed 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...

Weak high pressure ridging dominates the basin N of the monsoon 
trough and ITCZ, except for a surface trough along 139W/140W N 
of the ITCZ which is the remnants of T.D. Four-E. A rather
vigorous tropical wave near 132W, also described more above, has
plentiful convection and fresh to strong winds near the central
portion of the tropical wave. Southerly swell is 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, seas are building in the area of fresh to
strong winds associated with the tropical wave near 132W, and 
may reach as high as 8 ft Tue with a component of southerly 
swell. This feature should shift W of 140W by late Wed. Gentle 
to moderate winds are forecast thereafter and elsewhere. Moderate
seas will prevail, except to around 8 ft S of the Equator and W 
of 95W through Wed.

$$
Lewitsky