686 
AXPZ20 KNHC 290922
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Sat Mar 29 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.

Updated the Forecast Paragraph for the Offshore Waters sections

...SPECIAL FEATURES...

Significant Swell Event: 
Large, long-period NW swell will maintain seas of 12 to 13 ft 
west of Baja California Norte, north of 23N between 115W and 131W
through Sat morning. As the NW swell decays further, seas are 
going to drop below 12 ft by Sat noon. Please read the latest 
High Seas and Offshore Waters Forecasts issued by the National 
Hurricane Center at websites: 
https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml and
https://www.nhc.noaa.gov/marine/offshores.php for more details.

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

A monsoon trough extends from west-southwestward from near the
Panama-Colombia border through a 1009 mb low near 05N94W to 
02N104W. An ITCZ extends from 02N104W across 02N120W to 04S138W.
Widely scattered moderate convection is seen from 01N to 08N 
between 80W and 115W.

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

A broad surface ridge extends southeastward from a 1024 mb high
near 27N137W to near the Revillagigedo Islands. This feature is 
sustaining fresh to locally strong NW to N winds and seas of 9 to
12 ft west of Baja California. Gentle to moderate NW to N winds 
with 7 to 9 ft seas are present near the Revillagigedo Islands. 
Mainly gentle NW to NE winds are noted for the Gulf of California
and offshore waters of central and southern Mexico. Seas are 1 
to 3 ft in the Gulf of California, and 4 to 7 ft in mixed 
moderate swells for the central and southern Mexico offshore 
waters.

For the forecast, a persistent high pressure west of Baja 
California will sustain fresh to locally strong NW to N winds 
across the Baja California offshore waters, north of Puerto 
Magdalena through midweek next week. For the offshore waters 
south of Puerto Magdalena and near the Revillagigedo Islands, 
moderate to fresh NW to N winds will continue through Wed. Large,
long-period NW swell is going to keep rough to very rough seas 
off Baja California and near the Revillagigedo Islands through 
Mon morning before subsiding from north to south afterward. 
Gentle to moderate NW to NE winds and slight to moderate seas 
will prevail for the Gulf of California and offshore waters of 
central and southern Mexico into next week.

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

Convergent surface winds are triggering widely scattered showers
and isolated thunderstorms just offshore of Guatemala. Refer to
the ITCZ/Monsoon Trough section for additional convection in the
Offshore Waters. Fresh to locally strong easterly winds and 5 to
7 ft seas are evident at the Papagayo offshore waters. Gentle to
moderate northerly winds and seas of 3 to 5 ft are seen in the
Gulf of Panama. Light to gentle winds with seas at 4 to 6 ft in
mixed moderate swells prevail for the rest of the offshore
waters.

For the forecast, fresh NE to E winds are anticipated in the the
Gulf of Papagayo and westward to near 92W early this morning, 
and during the night on Sun, Tue and Wed. Otherwise, gentle to 
moderate easterly winds will prevail there through Wed. In the 
Gulf of Panama, gentle to moderate northerly winds will persist 
into midweek next week. Elsewhere, persistent moderate long- 
period SW swell is going to maintain moderate to rough seas for 
the next several days.

...REMAINDER OF THE AREA....

Please read the Special Features section at the beginning about 
a Significant Swell Event.

A broad surface ridge extends southeastward from a 1024 mb high
near 27N137W to near the Revillagigedo Islands. These features 
are supporting gentle to moderate N to NE to E winds with 9 to 12
ft seas in large, long-period NW swell north of 20N and west of 
120W, except a small area north of 28N and west of 136W where 
moderate to fresh SW winds exist. Farther south from the ITCZ to 
20N and west of 115W, moderate to fresh with locally strong NE to
ENE winds and seas at 8 to 11 ft are found. West of 115W and 
north of the ITCZ/monsoon trough, gentle to moderate NNE to ENE 
winds and 6 to 8 ft seas in mixed moderate swells are present. 
For the rest of the area south of the ITCZ/monsoon trough, light 
to gentle winds and seas of 5 to 7 ft in mixed moderate swells 
prevail. Refer to the ITCZ/Monsoon Trough section for convection 
in the area.
 
For the forecast, the aforementioned large, long-period NW swell
will gradually decay over the next few days. This will allow seas
north of 20N to drop below 12 ft this afternoon, then 6 to 9 ft 
on Sun, and finally 4 to 6 ft on Mon. For the area from the ITCZ
northward to 20N, seas are going to subside and reach 6 to 9 ft
on Mon, and then 6 to 8 ft Tue. A modest cold front is expected
to move eastward near 29N, causing moderate to fresh SW winds
west of 125W through Sun morning. As the high pressure slowly
weakens, winds from the ITCZ northward to 20N and west of 115W 
should gradually subside starting tonight, and become moderate 
to locally fresh on Mon.

$$

Chan