000
AXPZ20 KNHC 171605
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Thu Jul 17 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 1200 UTC surface analysis and satellite imagery through
1550 UTC.

...TROPICAL WAVES...

A tropical wave extends from 06N to 17N, with axis near 113W, 
moving westward at 10-15 kt. Scattered moderate convection is
from 06N to 16N between 110W and 120W.  

A tropical wave extends from 06N to 17N, with axis near 122W, 
moving westward at 5-10 kt. Scattered moderate convection is
from 07N to 17N between 120W and 130W. 

A tropical wave extends from 06N to 16N, with axis near 137W, 
moving westward around 5-10 kt. Scattered moderate convection is
from 06N to 15N between 130W and 140W.  
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

The monsoon trough extends from 09N83W to 09N110W to 10N135W. 
The ITCZ begins near 10N138W and continues beyond 10N140W. 
Numerous moderate convection is from 03N to 08N E of 81W.
Scattered moderate convection is from 06N to 12N between 98W and
109W.

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

A surface trough moving across the Bay of Campeche is supporting
fresh to strong N to NE winds in the Gulf of Tehuantepec along with
moderate seas to 7 ft in SW swell. Elsewhere, moderate or weaker
winds prevail along with moderate seas in SW swell, except NW
swell N of Punta Eugenia. 

For the forecast, pulsing moderate SE winds over the northern 
Gulf of California will prevail through Mon night. Pulsing fresh
to strong N gap winds will continue in the Gulf of Tehuantepec 
through Sun night as high pressure builds over central Mexico. 
Rough seas are forecast to develop in Tehuantepec Fri night
through late Sat. Afterward, winds in the Tehuantepec region 
will diminish to moderate to fresh, continuing through Mon night.
Elsewhere, moderate or weaker winds and moderate seas will 
prevail elsewhere. 

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

Fresh to strong NE to E gap winds prevail in the Gulf of 
Papagayo along with rough seas to 8 ft, reaching as far as 92W. 
Moderate SE to S winds are ongoing between Ecuador and The 
Galapagos Islands with moderate seas to 7 ft in SW swell. 
Moderate or weaker winds and moderate seas in SW swell are 
elsewhere across the Central America offshore waters.

For the forecast, pulsing fresh to strong NE to E winds will
continue in the Gulf of Papagayo through the weekend, diminishing
to moderate to fresh speeds by Mon. Gentle to moderate southerly
winds will continue between Ecuador and The Galapagos Islands 
through Mon night with moderate seas. Locally moderate or weaker
winds will prevail elsewhere.  

...REMAINDER OF THE AREA...

High pressure of 1035 mb well northwest of the discussion waters near
44N146W extends a ridge across the waters north of the ITCZ and monsoon
trough. Moderate trades are in the belt from 11N to 220N west of 112W,
and from 08N to 14N east of 112W. Gentle to moderate NE to E winds
are elsewhere north of 20N with rough seas in NE swell over the 
far NW waters, N of 28N and W of 138W. South of the ITCZ and 
monsoon trough, moderate to fresh winds prevail with moderate 
seas, except rough S of 06N.

For the forecast, rough seas over the NW waters will subside
this morning. Moderate to fresh NE to E winds and moderate seas 
will continue north of the monsoon trough and ITCZ to 20N through
Mon night, except for rough seas developing W of 130W Sat night 
through Mon. These winds and seas will be modulated by the 
passage of several tropical waves under a prevalent subtropical 
ridge through the forecast period.

$$
Ramos