667 
AXPZ20 KNHC 231541
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Sat Dec 23 2023

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
1530 UTC.

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

The monsoon trough extends from 09N84W to 04N97W. The ITCZ 
extends from 04N97W to 06N133W. A surface trough extends from
10N135W to 05N137W. Scattered moderate convection is noted from 
02N to 16N between 117W and 140W.

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

Moderate to fresh W to NW winds are occurring over northern Gulf
of California. Strong N to NE winds prevail across the Gulf of 
Tehuantepec, with seas to 9 ft. Otherwise, a weak pressure 
gradient prevails across the area with mainly light to gentle 
winds occurring. Seas average 3 to 6 ft, except 6 to 8 ft 
offshore Baja California Norte in NW swell. Seas in the Gulf of 
California are 2-3 ft. 

For the forecast, strong winds will prevail across the 
Tehuantepec region today, with seas to 9 ft. Elsewhere, winds 
across the area will be moderate or weaker. High pressure 
building over the U.S. Great Basin should funnel fresh to strong
NW winds over the Gulf of California Mon through Tue night. NW 
swell will continue to propagate southeastward across the waters
west of Baja California through tonight before diminishing. The 
next set of large NW swell will move into the Baja California 
Norte waters Sun through Mon.

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

A significant pressure gradient in the area continues to support
fresh to strong NE winds over the Gulf of Papagayo region. Seas 
are 6 to 8 ft within this area. Fresh N winds are also occurring
over the Gulf of Panama. Elsewhere, winds are moderate or 
weaker. N swell associated with gap winds in the Gulf of
Tehuantepec has decayed enough offshore Guatemala such that seas
are now below 8 ft 

For the forecast, fresh to strong NE winds will prevail over the
Gulf of Papagayo region into tonight. Fresh N winds will 
continue pulse over the Gulf of Panama through the weekend. 
Elsewhere, winds are expected to be moderate or weaker for the 
next several days. 

...REMAINDER OF THE AREA...

NW swell with seas of 8 to 9 ft are continuing to impact the 
waters north of 08N and west of 120W. These seas will gradually 
diminish into tonight, but remain above 8 ft through Sun. Winds 
in this area are generally moderate to fresh and NE. Elsewhere, 
the trades are moderate or weaker with seas 5-7 ft.

For the forecast, the NE trades will weaken to moderate across 
the waters by tonight. A new set of significant NW swell will 
arrive in the NW waters Sun, with seas Sun night and Mon 
exceeding 12 ft as the swell propagates SE through early next 
week.

$$
ERA