303
AXPZ20 KNHC 020958
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Wed Apr 2 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 0600 UTC surface analysis and satellite imagery through
0900 UTC.

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

A surface trough extends southwestward from near the Panama-
Colombia border across 07N95W to 03N110W. An ITCZ then continues
from 03N110W across 00N122W to beyond 04S140W. A second surface
trough runs westward from 01S87W to 03S105W to 02S113W. Widely
scattered moderate convection is seen from 00N to 10N between 78W
and 128W, and from 02S to 05S between 127W and 135W. Scattered
moderate convection is noted from 00S to 07S between 90W and
123W.

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

A broad surface ridge extends southeastward from 1029 mb high
near 34N136W across 30N138W to near the Revillagigedo Islands.
This feature is supporting fresh to locally strong NW to N winds
along with 8 to 11 ft seas in large NW swell west of Baja
California. Moderate with locally fresh NW to N winds and seas of
5 to 7 ft in moderate NW swell are present near the
Revillagigedo Islands. In the Gulf of California, fresh to strong
with locally near- gale NW winds and seas at 4 to 7 ft dominate
the northern Gulf, while moderate to fresh with locally strong W
to NW winds with 3 to 5 ft seas exist across the central and
southern Gulf. Mostly gentle NW to N to NE winds and seas of 4 to
5 ft are found off central and southern Mexico.

For the forecast, fresh to locally strong NW to N winds west of
Baja California will linger through early this evening, then
diminish to moderate with locally fresh nearshore on Thu. In the
northern and central Gulf of California, moderate to fresh with
locally strong winds are anticipated until early this evening,
and again on Thu night. A similar scenario is also forecast for
the central and southern Gulf of California Sat and Sun nights.
Large NW swell will maintain rough seas west of Baja California
until Fri, then subside to mainly moderate by Fri night. Looking
ahead, a surge of fresh to strong northerly gap winds may develop
in the Gulf of Tehuantepec Sun night, which could increase
further early next week.

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

Localized fresh to strong easterly winds and 4 to 6 ft seas are
present at the immediate Gulf of Papagayo, while moderate
northerly winds and seas at 3 to 5 ft are evident in the Gulf of
Panama. Light to gentle winds along with 4 to 7 ft seas in a
mixed of NW and SW swells prevail for the remainder of the
offshore waters. Refer to the ITCZ/Monsoon Trough section for
convection in the offshore areas.

For the forecast, localized fresh to strong winds will pulse in
the immediate Gulf of Papagayo through Sat night, mainly during
nighttime and early morning hours. Moderate northerly winds are
expected at the Gulf of Panama through Wed night. A mix of SW and
NW swells will keep moderate seas near the Galapagos Islands and
off Ecuador through late Thu.

...REMAINDER OF THE AREA....

A large dome of 1029 mb high near 34N136W is channeling gentle
to moderate with locally fresh NNW to NE to ESE winds, and 7 to
11 ft seas in moderate to large NW to N swell across waters north
of 21N and west of 120W. Tighter gradient between this high and
the ITCZ is generating fresh with locally strong NE to ENE winds
and seas of 7 to 10 ft seas in large N to NW swell from the ITCZ
to 21N and west of 118W. West of 118W and south of the ITCZ,
gentle to moderate NE to ENE winds and seas at 6 to 7 ft in mixed
N and SW swells are noted. Mainly light to gentle winds and 6 to
7 ft seas in mixed moderate NW and SW swells prevail for the
remainder of the open ocean waters east of 118W.

For the forecast, the high and related ridge will be quasi-
stationary while weaken slightly through this weekend. This
should allow winds north of 21N and west of 120W to gradually
decrease and become gentle to moderate by Fri. The NW swell will
also steadily decay which allow seas to drop to between 4 and 8
ft north of 21N, and between 6 and 9 ft from the ITCZ to 21N by
Fri. Late this weekend, large NW swell associated with a cold
front might cause seas to build as high as 13N, spreading from
the northwest to southeast. Little change is expected elsewhere
through Sun over the open Pacific waters.

$$

Chan