769 
AXPZ20 KNHC 232053
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Sun Jul 23 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 1800 UTC surface analysis and satellite imagery through
2100 UTC.

...TROPICAL WAVE...

The axis of a tropical wave is near 89W from Guatemala southward
to 05N, moving west around 15 to 20 kt. Nearby convection is 
described below.

The axis of a tropical wave is near 105W, from 05N to 17N, 
moving west at around 15 kt. The tropical wave is directly under
an upper low, which is supporting scattered moderate convection
from 10N to 15N, between 97W and 102W. The tropical wave may lose
definition as it moves west of the upper low through Mon.

The axis of a tropical wave is near 117W, from 05N
to 17N moving west around 15 kt. Nearby convection is described 
below.

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

The monsoon trough extends from 10N85W to 08N100W to 08N110W. 
The ITCZ continues from 08N110W to 13N130W to beyond 10N140W. 
Scattered moderate convection is evident from 04N to 06N between 
82W and 88W, from 07N to 10N between 85W and 88W, and from 09N to
12N between 90W and 93W. Numerous moderate to isolated strong 
convection is noted from 08N to 10N between 98W and 108W.

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

A plume of moderate northerly gap winds are in the immediate 
Gulf of Tehuantepec, with seas of 4-5 ft. Gentle to moderate 
winds are noted elsewhere across Mexican offshore waters, with 
3-5 ft seas over the open waters, and 1-3 ft seas in the Gulf of 
California. Thunderstorm activity persists near Cabo Corrientes,
aided in part by divergence aloft near an upper low centered near
13N105W. Scattered showers and a few thunderstorms are also
active from 90 to 120 nm off western Oaxaca, lingering from
activity that moved off the coast overnight.

For the forecast, expect moderate to fresh gap winds across the 
Gulf of Tehuantepec during the overnight hours through Mon, then 
fresh to strong thereafter. 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 active off the coast of Costa 
Rica. Moderate NE to E gap winds persist across the Gulf of 
Papagayo. Moderate southerly winds are S of 03N, with seas of 4-6
ft in S-SW swell. Elsewhere, mainly light to gentle breezes and 
3-4 ft seas are evident.

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. 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 recent altimeter satellite pass confirmed that combined seas 
to 8 ft persist near a trough extending from 12N132W to 18N135W.
The trough is the remnant of T.D. Four-E, and the associated seas
are subsiding as the trough dissipates. Gentle to moderate winds
and moderate seas prevail elsewhere, except fresh SE winds S of 
the Equator and W of 115W.

For the forecast, the remnant trough of Four-E will gradually
dissipate as it moves westward overnight. Elsewhere, moderate to
occasionally fresh winds can be expected N of the convergence 
zone and W of 130W, with gentle to moderate winds elsewhere 
through the middle part of the week. Moderate seas will prevail, 
building to around 8 ft S of the Equator and W of 95W Mon night 
through Wed.

$$
Christensen