000
AXPZ20 KNHC 301540
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Mon Dec 30 2024

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 1200 UTC surface analysis and satellite imagery through
1430 UTC.

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

The monsoon trough extends from near 10N85W to 06N105W. The ITCZ
extends from 06N105W to 07N120W to beyond 07N140W. Scattered 
moderate and isolated strong convection is noted from 05N to 12N
between 92W and 100W. Scattered moderate convection is noted 
from 05N to 09N between 118W and 127W, and from 07N to 11N 
between 135W and 140W.

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

A ridge extends from 1030 mb high pressure centered near 39N132W
to near the Revillagigedo Islands. The pressure gradient between
the ridge and a trough over western Mexico is supporting 
moderate to fresh winds off Baja California Norte. Fresh to 
strong winds are in the Gulf of Tehuantepec. Light to gentle 
winds prevail elsewhere. NW swell is bringing seas of 8-11 ft 
over the open waters west of 105W. Seas of 4-6 ft prevail 
elsewhere over the open waters. Seas of 1-3 ft are over the Gulf 
of California. 

For the forecast, fresh to locally strong N to NW winds will 
prevail over the Baja California Norte waters through Tue, before
diminishing Tue night into Wed. Seas across the Baja California 
offshore waters will slowly decay through midweek, subsiding 
below 8 ft by Wed. The strong winds prevailing over the Gulf of 
Tehuantepec will end by this afternoon. Looking ahead, gale 
conditions and rough seas are possible for the Tehuantepec region
beginning Thu night into Fri. 

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

Light to gentle winds prevail N of the monsoon trough with gentle
winds S of the monsoon trough. Seas are in the 3-5 ft, except to
6 ft S of the Galapagos Islands. 

For the forecast, fresh NE to E winds will pulse in the Gulf of
Papagayo Tue through the weekend, with strong winds possible
Fri into Sat. Moderate to locally fresh NE winds will extend 
beyond the Papagayo region midweek, impacting areas well 
offshore of Guatemala. Elsewhere, N of the monsoon trough light 
to gentle winds and slight to locally moderate seas will prevail 
this week. Gentle to moderate S to SW winds and moderate seas 
will occur south of the monsoon trough. 

...REMAINDER OF THE AREA...

A ridge extends from 1030 mb high pressure centered near 39N132W
to near the Revillagigedo Islands. The pressure gradient between
the area of high pressure and lower pressure in the vicinity of 
the ITCZ is supporting moderate to fresh winds N of the ITCZ and
W of 115W. Light to gentle winds are elsewhere N of the 
ITCZ/monsoon trough. S of the monsoon trough, gentle to moderate 
winds prevail. Seas are in the 7-11 ft range W of 105W, and 5-7 
ft E of 105W. 

For the forecast, moderate to fresh winds will continue N of 10N
through Wed night before diminishing by Thu. The long- period NW
swell will slowly subside through midweek. However, a new NW 
swell event will begin to enter the NW waters the end of the
week. 

$$
AL