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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 300427
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Thu Apr 30 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 0000 UTC surface analysis and satellite imagery through
0300 UTC.

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

A surface trough axis extends from 08N78W to 07N90W. An ITCZ 
extends from 07N90W to 06N106W to 06N123W. Numerous moderate to
scattered strong convection is noted from 03N to 09N between 
114W and 127W. Scattered moderate convection is seen from 03N to
06N between 86W and 100W...and from 03N to 05N between 108W and 
113W.

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

Ridging off Baja California combined with troughing over northwest
Mexico supports moderate to fresh NW to N winds and seas of 4 to
7 ft off the peninsula. Moderate NW winds with 3 to 4 ft seas 
are seen across the central and southern Gulf of California, and
light to gentle winds and seas at 1 to 2 ft dominate the rest of 
the Gulf. Gentle winds with 4 to 6 ft seas in mixed moderate 
swell prevail for the offshore waters of central and southern 
Mexico.

For the forecast, the pressure gradient between high pressure 
building southward from the North Pacific and lower pressure over
northwestern Mexico will maintain fresh to locally strong NW 
winds over waters on both sides of Baja California through Thu 
night. By Sun into Mon, strong to near-gale force gap winds and 
rough seas will impact the Gulf of Tehuantepec.

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

Fresh NE to E gap winds and seas of 4 to 6 ft are present at the
Papagayo region. Moderate to fresh N winds with 3 to 4 ft seas 
are noted at the Gulf of Panama. Gentle S winds and 4 to 7 ft 
seas in moderate S swell persist in waters near the Galapagos 
Islands and off Ecuador. Light to gentle winds with 2 to 4 ft 
seas prevail for the remainder offshore waters in Central America
and off Colombia.

For the forecast, fresh NE to E winds will pulse in the Papagayo
region tonight and Thu night. Moderate to fresh N winds will
pulse in the Gulf of Panama during this time. Moderate long-
period S swell will will gradually diminish across the waters
near Ecuador and the Galapagos Islands into the weekend. 

...REMAINDER OF THE AREA...

The pressure gradient between a surface trough extending from
roughly 29N125W to 15N132W and high pressure to the NW is leading
to fresh NE winds and 5 to 8 ft seas over the NW waters.
Convection previously associated with this trough has dissipated
this afternoon. Elsewhere N of the ITCZ, moderate to fresh mainly
NE winds prevail, with 4 to 7 ft seas. To the S, similar seas
prevail, in a mix of S and NW long period-swell, and mainly
gentle SE winds dominate. 

For the forecast, winds south of the ITCZ will become light to
gentle starting Thu night. Moderate to fresh NE winds and mainly
moderate seas will prevail north of the ITCZ.

$$

Chan