510
AXPZ20 KNHC 092035
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Sun Mar 9 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 1800 UTC surface analysis and satellite imagery through
2000 UTC.

...SPECIAL FEATURES...

Eastern Pacific Gale Warning: A cold front that extends from
30N130W to 22N140W is preceded and followed by strong winds.
Strong high pressure building behind the front is generating a
tight pressure gradient, and gale force winds will soon move into
the area S of 30N just W of 130W. This area of gales will spread
SE and prevail through Mon for waters N of 28N between 128W and
134W. Very rough seas of 12 to 16 ft already dominate behind the
front and these will build further as the gales develop and
expand, reaching 20 ft in the gale area this evening, and peaking
around 25 ft near 30N130W on Mon. Even after gales end Mon, very
rough seas will prevail, reaching as far S of 20N Tue and E into
the waters offshore Baja California Norte, and not subsiding
below 12 ft until Tue night.

Gulf of Tehuantepec Gale Warning: Gap winds will commence in the
Gulf of Tehuantepec this evening as high pressure builds down the
NE coast of Mexico. N to NE winds funneling through the Chivela
pass will prevail into Mon night. Seas will rapidly build to 14
ft Mon. Winds and seas will diminish Tue morning.

Please read the latest HIGH SEAS FORECAST issued by the National
Hurricane Center at website -
https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details.

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

The monsoon trough extends from 08N80W to 08N95W to 03N111W.
Convection associated with the monsoon trough has diminished this
afternoon.

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

See the Special Features Section for details on a Gale Warning
for the Tehuantepec Region.

High pressure of 1025 mb is centered near Isla Guadalupe, and its
associated ridge conditions to dominate the region. This is
leading to gentle to moderate NE winds to the Baja California
offshore waters with seas of 5 to 7 ft. Another high pressure
building south from the SW United States is leading to fresh to
locally strong winds from the central Gulf of California to near
Cabo Corrientes, with seas of 6 to 8 ft. Elsewhere, light to
gentle winds and slight to moderate seas prevail.

For the forecast, a cold front will approach waters offshore
Baja California Norte Mon night, with fresh to locally strong
southerly winds and seas to 12 ft affecting the waters N of Cabo
San Lazaro through Wed. Fresh to strong NW winds in the central
and southern Gulf of California will diminish to gentle to
moderate speeds Mon morning and re-develop over the northern
Gulf N of 29N Mon night as the aforementioned cold front
approaches the region.

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

Moderate NE winds are ongoing in the gulfs of Panama and
Papagayo. Light to gentle winds and slight seas are ongoing
elsewhere.

For the forecast, moderate to fresh gap winds will pulse nightly
in the gulfs of Papagayo and Panama. Seas will build over the
western Guatemala offshore waters Mon through Mon night due to
gales in the Gulf of Tehuantepec.

...REMAINDER OF THE AREA....

See the Special Features Section for details on a Gale Warning
for the central subtropical waters.

A broad surface ridge extending from a 1025 mb high centered W
of Baja California Norte is disrupted by a cold front extending
from 30N130W to 22N140W. Scattered moderate convection has
developed along and within 90 nm ahead of the front N of 27N.
Away from the influence of the cold front and N of 18N, gentle
winds and 5 to 7 ft seas prevail. To the S, and continuing to
about 05N, fresh NE to E trades and seas of 7 to 9 ft dominate.
For the remainder of the waters, gentle winds and 4 to 7 ft seas
are present.

For the forecast, the cold front responsible for the very rough
seas and gale conditions described above in the Special Features
section above will weaken and move east of the area by Tue night.
Another cold front is likely to bring fresh to strong winds and
very rough seas to northern waters Wed and Thu. Otherwise, fresh
to locally strong trades will prevail W of 118W between the
monsoon trough and about 20N into late week.

$$
Konarik