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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 160740
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Thu Apr 16 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 Colombia at 07N77W to 
05N79W to 08N85W to 05N119W. The ITCZ extends from 05N119W to 
beyond 06N140W. Southern hemispheric surface trough extends from
03S86W to 01S103W. Southern hemispheric ITCZ extends from 
03S118W to 01S139W. Numerous moderate to scattered strong
convection is occurring from 03N-07W to 110W-120W. Scattered 
moderate to isolated strong convection is noted from 05S-05N 
between 87W-110W. Isolated moderate convection extends from
05N-11N between 124W-140W. 

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

A high pressure ridge extends from 30N125W to 20N110W to 13N107W.
Winds on the east side of the ridge are NW moderate to fresh 
over the Pacific waters NW of Cape Corrientes and over the S Gulf
of California. Elsewhere, winds are moderate or weaker. Seas are
5-6 ft in NW swell NW of Cape Corrientes, 4-5 ft in S swell SE 
of Cape Corrientes, 2-4 ft over the S Gulf of California, and 
0-2 ft over the N Gulf of California. No significant deep 
convection is occurring over the Mexican offshore waters.

For the forecast, quiescent conditions will prevail across the 
Mexican offshores today. Developing low pressure over the SW 
United States will induce fresh SW winds over the N Gulf of 
California tonight before diminishing on Fri. Elsewhere, large NW
swell will impact the Pacific waters west of Baja California 
Norte tonight through Fri night. Looking ahead, high pressure 
building over the Gulf of America should cause a fresh to strong 
Tehuanteper gap wind event Sun night and Mon. 

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

Fresh E winds and seas of 4-5 ft are occurring over the Gulf of
Papagayo region this evening. Elsewhere, winds across the 
forecast waters are moderate or weaker this evening with seas of 
4-7 ft in S swell. Scattered moderate to isolated strong 
convection is noted from 05S-05N between 87W-110W including water
near the Galapagos.

For the forecast, high pressure over the W Caribbean will help 
to produce fresh NE gap winds over the Gulf of Papagayo region 
today. Convection occurring near the Galapagos will continue 
through Fri night. Elsewhere, by tonight through early next week,
quiescent conditions will prevail over the Central American and 
equatorial waters. 
 
...REMAINDER OF THE AREA...

A high pressure ridge extends from 30N125W to 20N110W to 13N107W. 
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 several days. Large NW swell will impact waters north of
27N and east of 125W Thu night 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
on Sun. The frontal boundary should move eastward while 
gradually weakening, accompanied by large N swell.

$$
Landsea