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Eastern North Pacific Tropical Weather Discussion


024 
AXPZ20 KNHC 170742
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Fri Apr 17 2026

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
0730 UTC.

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

A surface trough extends from coastal Panama near 09N79W to 
05N100W. The ITCZ begins at 05N100W to a 1012 mb low near 
06N111W, then beyond 05N140W. Scattered moderate and isolated 
strong convection is occurring from 03N-08N between 90W-135W. 
A Southern Hemisphere ITCZ extends from 04S93W to 03S140W. 
Isolated moderate convection is observed from 03S-08S between 
85W-89W. 

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

A surface ridge extends from 30N125W to 20N117W to 15N108W. NW 
winds west of the Baja California peninsula are moderate to 
fresh. Winds are SW fresh to locally strong in the N Gulf of
California. Elsewhere over the Pacific and the Gulf of 
California, winds are moderate or weaker. Seas are 5-7 ft in NW 
swell over the Pacific NW of Cabo Corrientes, 5-6 ft in S swell 
over the Pacific SE of Cabo Corrientes, 2-4 ft over the N Gulf of
California, and 1-2 ft over the S and central Gulf of 
California. No deep convection is occurring over the Mexican 
offshore waters.

For the forecast, fresh NW winds will occur near Cabo San Lucas 
through tonight. Additionally, large NW swell will impact the 
Pacific waters west of Baja California Norte today through Sat. 
Elsewhere, quiescent conditions will remain over the Mexican 
offshores through the weekend. Looking ahead, high pressure 
building over the Gulf of America is expected to induce a strong 
to near gale Tehuantepec gap wind event beginning Sun night into 
Tue. 

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

Fresh E winds are occurring over the Gulf of Papagayo region this
evening. Elsewhere, winds across the Central American and 
equatorial waters are moderate or weaker. Seas over forecast
waters are 5-6 ft in S swell. Isolated moderate convection is 
observed from 03S-08S between 85W-89W. near the Galapagos 
Islands. 

For the forecast, rather tranquil conditions are expected to 
remain over the Central American and the equatorial waters 
through early next week.
 
...REMAINDER OF THE AREA...

A surface ridge extends from 30N125W to 20N117W to 15N108W. The 
weak pressure gradient between the ridge and lower pressure over 
the ITCZ is forcing only moderate to locally fresh NE trades over
forecast waters. Seas are 5-7 ft in mixed swell. No additional 
deep convection is occurring away from the surface trough/ITCZ.

For the forecast, little change is expected in the winds during
the next few days. Large NW swell will impact waters north of 
28N and east of 125W today through Fri night. Otherwise, little 
change in the seas are also expected through the weekend. Looking
ahead, a cold front will reach our NW corner at 30N140W early on
Sun. The frontal boundary should move eastward while gradually 
weakening, accompanied by large N to NW swell. The large N to NW 
swell should reach to 20N west of 130W by Tuesday.

$$
Landsea